messages
listlengths 3
3
| meta
dict |
|---|---|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC scan cycle typically consists of three main phases: input reading, program execution, and ________."
},
{
"role": "assistant",
"content": "Answer: output writing\n\nExplanation: After processing inputs and executing the program, the PLC updates outputs to reflect the new state."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "fill",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:38"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that is lost when the PLC is powered off?\n\nA) Retentive Memory \nB) Input Image Table \nC) Output Image Table \nD) Internal Memory (Flags)"
},
{
"role": "assistant",
"content": "Answer: D) Internal Memory (Flags) \nExplanation: Internal memory stores temporary data that is cleared on power loss, unlike retentive memory which retains data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:39"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, program execution takes 20 ms, and output writing takes 3 ms, what is the total scan time in milliseconds?"
},
{
"role": "assistant",
"content": "Answer: 28 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:39"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:40"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before it triggers?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:40"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:40"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A conveyor motor controlled by a PLC stops unexpectedly after running for about 15 minutes. The motor is connected to output Q2.3, and the PLC program includes a timer T5 with a preset of 900,000 ms (15 minutes) that triggers a stop command. What should be checked or fixed to resolve this issue?\n\nA) Inspect the motor wiring for shorts \nB) Verify the timer T5 preset and reset logic \nC) Replace the motor immediately \nD) Increase the motor voltage supply"
},
{
"role": "assistant",
"content": "Answer: B) Verify the timer T5 preset and reset logic \nExplanation: The timer may be causing an unintended stop after 15 minutes due to incorrect preset or missing reset conditions."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:40"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before it completes?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:41"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer TON is set with a preset time of 500 ms and the input signal remains ON continuously, after how many milliseconds will the timer output become TRUE?"
},
{
"role": "assistant",
"content": "Answer: 500 ms\n\nExplanation: The TON timer output becomes TRUE once the input has been ON for the preset duration."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:41"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC scan cycle typically consists of three main phases: input reading, program execution, and ________."
},
{
"role": "assistant",
"content": "Answer: output writing\n\nExplanation: After executing the program logic, the PLC updates the outputs to reflect the new control states."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "fill",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:41"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan time range for a standard industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 100 to 500 milliseconds \nC) 1 to 5 seconds \nD) 10 to 30 seconds"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard industrial PLCs usually operate with scan times in the low milliseconds range for real-time control."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:42"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that resets when the PLC powers off?\n\nA) Retentive Memory \nB) Input Image Table \nC) Timer/Counter Memory \nD) Output Image Table"
},
{
"role": "assistant",
"content": "Answer: C) Timer/Counter Memory \nExplanation: Timer/Counter memory holds temporary values that reset on power loss, unlike retentive memory which preserves data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:42"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "What is the typical scan cycle time range (in milliseconds) for a standard mid-range PLC used in industrial automation?"
},
{
"role": "assistant",
"content": "Answer: 5 to 20 ms \nExplanation: Mid-range PLCs usually complete their scan cycles within 5 to 20 milliseconds to balance speed and processing complexity."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:43"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan time range for a standard industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 100 to 500 milliseconds \nC) 1 to 5 seconds \nD) 10 to 30 seconds"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard industrial PLCs usually operate with scan times in the low millisecond range to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:43"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC timer with a preset value of 500 ms will complete its timing cycle after ______ milliseconds."
},
{
"role": "assistant",
"content": "Answer: 500\n\nExplanation: The timer finishes when the elapsed time reaches the preset value."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "fill",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:43"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that is lost when the PLC is powered off?\n\nA) Retentive Memory \nB) Input Image Table \nC) Output Image Table \nD) Working Memory"
},
{
"role": "assistant",
"content": "Answer: D) Working Memory \nExplanation: Working Memory holds temporary data that is cleared on power loss, unlike retentive memory which preserves data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:43"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that resets when the PLC is powered off?\n\nA) Retentive Memory \nB) Input Image Table \nC) Timer Accumulators \nD) Output Image Table"
},
{
"role": "assistant",
"content": "Answer: C) Timer Accumulators \nExplanation: Timer accumulators hold temporary timing values that reset on power loss, unlike retentive memory which preserves data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:44"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, the program execution takes 12 ms, and the output update takes 3 ms, what is the total scan time in milliseconds?"
},
{
"role": "assistant",
"content": "Answer: 20 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output update times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:44"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before it times out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:44"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before it triggers?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:45"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common scan cycle time range for a typical industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A \nExplanation: Typical PLC scan cycles usually range from a few milliseconds to tens of milliseconds for real-time control."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:46"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, program execution takes 15 ms, and output writing takes 3 ms, what is the total scan time?"
},
{
"role": "assistant",
"content": "Answer: 23 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:46"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan cycle time range for a standard industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard industrial PLCs usually complete their scan cycles within a few milliseconds to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:46"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common scan cycle time range for a typical industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A \nExplanation: Typical PLC scan cycles usually range from a few milliseconds to tens of milliseconds for efficient real-time control."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:46"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC scan cycle typically consists of three main steps: input reading, program execution, and ________."
},
{
"role": "assistant",
"content": "Answer: output writing\n\nExplanation: The PLC updates outputs after executing the program to reflect the new control state."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "fill",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:47"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Statement: In a generic PLC program, a timer configured with a preset value of 500 ms will complete its timing cycle exactly after 500 scan cycles if the PLC scan time is 1 ms."
},
{
"role": "assistant",
"content": "Answer: False \nExplanation: Timer preset values represent real time, not scan cycles; the timer completes after 500 ms regardless of scan time."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "tf",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:47"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds, as 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:48"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:48"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A conveyor belt controlled by a PLC stops unexpectedly after running for 15 minutes. The PLC program uses a timer (T1) set for 900,000 ms to trigger a motor stop. The motor output is connected to address Q0.2. What should be checked first to troubleshoot the issue?\n\nA) Verify if the timer T1 is resetting correctly \nB) Check the motor wiring at Q0.2 \nC) Inspect the power supply voltage to the PLC \nD) Confirm the sensor input at I1.0 is active"
},
{
"role": "assistant",
"content": "Answer: A) Verify if the timer T1 is resetting correctly \nExplanation: A timer that does not reset will cause the motor to stop after the preset time."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:48"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC scan cycle typically takes around ___ milliseconds to complete one full read-execute-write sequence."
},
{
"role": "assistant",
"content": "Answer: 10-50\n\nExplanation: Most standard PLCs complete a scan cycle within 10 to 50 milliseconds depending on program complexity."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "fill",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:48"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common scan cycle time range for a typical industrial PLC?\n\nA) 1 to 10 microseconds \nB) 1 to 10 milliseconds \nC) 1 to 10 seconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: B \nExplanation: Typical PLC scan cycles usually range from 1 to 10 milliseconds to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:48"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before it times out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:49"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "True/False: In a PLC program, a generic timer configured with a preset time of 500 ms will complete its timing cycle after half a second once activated."
},
{
"role": "assistant",
"content": "Answer: True \nExplanation: A preset time of 500 ms means the timer counts for 0.5 seconds before timing out."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "tf",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:50"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a TON timer set to 900,000 ms to trigger a maintenance alert. The conveyor motor output at address Q0.2 remains off, although the input sensor at I0.1 is active. What should be checked first to resolve the issue?\n\nA) Verify the timer preset value \nB) Check the wiring of output Q0.2 \nC) Inspect the input sensor I0.1 status \nD) Review the program logic for the motor control"
},
{
"role": "assistant",
"content": "Answer: B) Check the wiring of output Q0.2 \nExplanation: Since the input sensor is active and the timer is set correctly, the motor output wiring is the most likely cause of the motor not running."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:50"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that is lost when the PLC is powered off?\n\nA) Input Image Table \nB) Output Image Table \nC) Retentive Memory \nD) Marker Memory"
},
{
"role": "assistant",
"content": "Answer: D) Marker Memory \nExplanation: Marker Memory holds temporary data that is cleared on power loss, unlike Retentive Memory which retains data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:50"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that resets when the PLC is powered off?\n\nA) Retentive Memory \nB) Input Image Table \nC) Output Image Table \nD) Internal Memory (Flags)"
},
{
"role": "assistant",
"content": "Answer: D) Internal Memory (Flags) \nExplanation: Internal memory stores temporary data that is lost on power cycle, unlike retentive memory which preserves data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:51"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, program execution takes 20 ms, and output writing takes 3 ms, what is the total scan time in milliseconds?"
},
{
"role": "assistant",
"content": "Answer: 28 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:51"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt fails to start when the start button is pressed. The input module shows the start button signal at address I0.1 is ON, but the motor output at Q0.2 remains OFF. The program uses a normally open contact at I0.1 to energize Q0.2 with a TON timer set to 5 seconds delay. What should be checked or fixed first?\n\nA) Replace the motor \nB) Verify the timer preset value \nC) Check the wiring of output Q0.2 \nD) Reset the PLC"
},
{
"role": "assistant",
"content": "Answer: C) Check the wiring of output Q0.2 \nExplanation: If the input is detected but output remains off, output wiring or hardware is the most likely cause."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:51"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC timer configured with a preset time of 500 ms will complete its timing cycle exactly at 500 ms after activation."
},
{
"role": "assistant",
"content": "Answer: False \nExplanation: Actual timer completion can vary slightly due to scan cycle time and processing delays."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "tf",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:52"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common scan cycle time for a standard industrial PLC?\n\nA) 5 microseconds \nB) 10 milliseconds \nC) 1 second \nD) 1 minute"
},
{
"role": "assistant",
"content": "Answer: B \nExplanation: Typical PLC scan cycles range from a few milliseconds to tens of milliseconds, making 10 ms a common value."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:52"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:53"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a timer set to 900 seconds (15 minutes) to trigger a stop command at output Q2. The conveyor motor connected to Q2 does not restart even after resetting the timer. What should be checked or fixed first?\n\nA) Verify the timer preset value is correct \nB) Check if the output Q2 is physically damaged \nC) Confirm the timer is being reset properly in the program \nD) Inspect the power supply voltage to the PLC"
},
{
"role": "assistant",
"content": "Answer: C) Confirm the timer is being reset properly in the program \nExplanation: If the timer is not reset, it will continuously trigger the stop command, preventing the motor from restarting."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:53"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:53"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Complete the missing line in this Structured Text (ST) snippet to start a TON timer when the input I0.0 is TRUE:\n\n```\nVAR\n StartTimer : BOOL;\n Timer1 : TON;\nEND_VAR\n\nStartTimer := I0.0;\nTimer1(IN := ________, PT := T#5s);\n```"
},
{
"role": "assistant",
"content": "Answer: StartTimer\n\nExplanation: The timer input (IN) must be connected to the boolean controlling the timer start, here StartTimer."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "code_completion",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:54"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, the program execution takes 12 ms, and the output writing takes 3 ms, what is the total scan time in milliseconds?"
},
{
"role": "assistant",
"content": "Answer: 20 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:54"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that resets when the PLC is powered off?\n\nA) Retentive Memory \nB) Input Image Table \nC) Output Image Table \nD) Marker (Flag) Memory"
},
{
"role": "assistant",
"content": "Answer: D) Marker (Flag) Memory \nExplanation: Marker memory holds temporary data that is lost when power is removed, unlike retentive memory which retains data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:54"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data during program execution?\n\nA) Input Image Table \nB) Output Image Table \nC) Retentive Memory \nD) Working Memory"
},
{
"role": "assistant",
"content": "Answer: D) Working Memory \nExplanation: Working Memory holds temporary data that is lost when the PLC is powered off."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:55"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan cycle time range for a standard PLC in an industrial automation system?\n\nA) 1 to 10 milliseconds \nB) 100 to 500 milliseconds \nC) 1 to 5 seconds \nD) 10 to 30 seconds"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard PLCs usually operate with scan times in the millisecond range to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:55"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: \nIn a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:55"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 3 hours. The system uses a timer set for 10,800 seconds (3 hours) to trigger maintenance mode. The conveyor motor does not restart even after resetting the timer. What should be checked or fixed first?\n\nA) Verify the timer preset value is correct. \nB) Check if the motor output address is correctly assigned. \nC) Inspect the physical wiring of the conveyor motor. \nD) Ensure the maintenance mode reset signal is properly configured."
},
{
"role": "assistant",
"content": "Answer: D) Ensure the maintenance mode reset signal is properly configured.\n\nExplanation: The motor won’t restart if the maintenance mode reset signal isn’t correctly resetting the timer or control logic."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:55"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common data type used in PLC programming to represent whole numbers?\n\nA) BOOL \nB) INT \nC) REAL \nD) STRING"
},
{
"role": "assistant",
"content": "Answer: B) INT \nExplanation: INT is a standard integer data type used to store whole numbers in PLCs."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:56"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan cycle time range for a standard industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 100 to 500 milliseconds \nC) 1 to 5 seconds \nD) 10 to 30 seconds"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard industrial PLCs usually complete their scan cycle within a few milliseconds to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:56"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 45 minutes. The program uses a timer TON with a preset of 300000 ms to trigger a maintenance alert. The conveyor motor does not restart even after resetting the alert. What should be checked or fixed to resolve the issue?\n\nA) Verify the TON timer is resetting properly after the preset time. \nB) Increase the timer preset to 600000 ms. \nC) Replace the conveyor motor. \nD) Disable the maintenance alert in the program."
},
{
"role": "assistant",
"content": "Answer: A) Verify the TON timer is resetting properly after the preset time.\n\nExplanation: If the timer does not reset, the program may remain in a stopped state, preventing the motor from restarting."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:57"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:57"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:57"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Complete the missing line in this Structured Text (ST) snippet to start a TON timer with a preset time of 500 ms.\n\n```pascal\nVAR\n Timer1 : TON;\n StartSignal : BOOL := TRUE;\nEND_VAR\n\nTimer1(IN := StartSignal, PT := T#500ms);\n__________;\n```"
},
{
"role": "assistant",
"content": "Answer: Timer1(Q);\n\nExplanation: The output Q must be read to check if the timer has elapsed."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "code_completion",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:58"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before it triggers?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:58"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan cycle time range for a standard industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 100 to 500 milliseconds \nC) 1 to 5 seconds \nD) 10 to 30 seconds"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard industrial PLCs usually operate with scan times in the low millisecond range for real-time control."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:58"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:59"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following PLC memory areas is typically used to store temporary data that is lost when the PLC is powered off?\n\nA) Retentive Memory \nB) Input Image Table \nC) Output Image Table \nD) Timer/Counter Memory"
},
{
"role": "assistant",
"content": "Answer: D) Timer/Counter Memory \nExplanation: Timer/Counter memory holds temporary values that reset when power is lost, unlike retentive memory which preserves data."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:33:59"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "In a PLC program, a generic timer configured with a preset time of 500 ms will complete its timing cycle exactly after 500 ms of continuous input signal."
},
{
"role": "assistant",
"content": "Answer: False \nExplanation: The timer starts counting only when the input signal is true and may reset if the input is interrupted before reaching 500 ms."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "tf",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:00"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The system uses a timer T1 set for 900 seconds (15 minutes) to trigger a maintenance alert. The conveyor motor output at address Q0.2 turns off when T1.Q is true. What should be checked or fixed to prevent the conveyor from stopping prematurely?\n\nA) Increase the timer preset value to 1800 seconds \nB) Verify if the timer T1 is being reset properly after the alert \nC) Replace the motor connected to Q0.2 \nD) Change the input sensor address from I0.1 to I0.3"
},
{
"role": "assistant",
"content": "Answer: B) Verify if the timer T1 is being reset properly after the alert \nExplanation: If the timer is not reset, it will keep the output off after reaching the preset time."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:00"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC scan cycle typically consists of three main steps: input reading, program execution, and ________."
},
{
"role": "assistant",
"content": "Answer: output writing\n\nExplanation: The PLC updates outputs after processing inputs and executing the program logic."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "fill",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:01"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset time of 500 ms and the scan cycle time is 10 ms, how many scan cycles will it take for the timer to reach its preset value?"
},
{
"role": "assistant",
"content": "Answer: 50 scan cycles\n\nExplanation: The timer counts elapsed time based on scan cycles; 500 ms divided by 10 ms per cycle equals 50 cycles."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:01"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:01"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The system uses a timer set to 900 seconds (15 minutes) to trigger a maintenance alert, but the conveyor halts instead of just signaling. What should be checked or fixed to resolve this issue?\n\nA) Verify the timer preset value is correct. \nB) Check if the timer output is incorrectly linked to the conveyor stop command. \nC) Inspect the power supply voltage levels. \nD) Replace the PLC CPU module."
},
{
"role": "assistant",
"content": "Answer: B\n\nExplanation: The timer output is likely wired to stop the conveyor instead of only triggering an alert, causing the unintended halt."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:01"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:02"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, the program execution takes 12 ms, and the output update takes 3 ms, what is the total scan time in milliseconds?"
},
{
"role": "assistant",
"content": "Answer: 20 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output update times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:02"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 12 minutes. The program uses a TON timer with a preset of 600 seconds to trigger a motor stop. The motor output coil is not energized after the timer expires. What should be checked or fixed to resolve the issue?\n\nA) Increase the timer preset to 720 seconds \nB) Verify the timer is being reset properly before starting \nC) Replace the motor output coil address with a new one \nD) Decrease the timer preset to 300 seconds"
},
{
"role": "assistant",
"content": "Answer: B) Verify the timer is being reset properly before starting \nExplanation: The timer must be reset to start timing correctly; otherwise, it will not trigger the motor stop as expected."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:03"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "True or False: \nA generic timer function block in a PLC can be configured with a preset time of 1500 milliseconds and will start timing immediately upon receiving a TRUE input signal."
},
{
"role": "assistant",
"content": "Answer: True \nExplanation: A generic timer block typically begins counting the preset time as soon as its enable input is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "tf",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:03"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Fill in the missing line to start a TON timer that delays for 500 ms.\n\n```pascal\nVAR\n Timer1 : TON;\nEND_VAR\n\nTimer1(IN := TRUE, PT := T#500ms);\n_____\n```"
},
{
"role": "assistant",
"content": "Answer: Q := Timer1.Q;\n\nExplanation: The output Q indicates when the timer has elapsed."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "code_completion",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:04"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Complete the missing line in the following Structured Text (ST) code to start a timer when the input I0.0 is TRUE:\n\n```\nIF I0.0 THEN\n TON1(IN := TRUE, PT := T#5s);\n_____\nEND_IF;\n```\n\nA) TON1(Q := TRUE); \nB) TON1(IN := FALSE); \nC) TON1(Q); \nD) TON1(Q := TON1.Q);"
},
{
"role": "assistant",
"content": "Answer: B) TON1(IN := FALSE);\n\nExplanation: The timer input must be set to FALSE to stop the timer when the condition is not met."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "code_completion",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:04"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC scan cycle typically takes around ___ milliseconds to complete one full read-execute-write sequence."
},
{
"role": "assistant",
"content": "Answer: 10-50\n\nExplanation: Most standard PLCs complete a scan cycle within 10 to 50 milliseconds depending on program size and hardware."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "fill",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:04"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, program execution takes 15 ms, and output writing takes 3 ms, what is the total scan time?"
},
{
"role": "assistant",
"content": "Answer: 23 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:05"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt shows that the motor does not start when the start button is pressed. The PLC program uses input I0.1 for the start button and output Q0.2 for the motor. The input status on the PLC monitoring screen never changes from 0, even when the button is pressed. What should be checked first?\n\nA) Check the wiring and connection of the start button to input I0.1 \nB) Verify the motor is properly connected to output Q0.2 \nC) Increase the timer preset value controlling the motor start delay \nD) Replace the PLC power supply unit"
},
{
"role": "assistant",
"content": "Answer: A\n\nExplanation: If the input status does not change, the first step is to verify the physical wiring and connection of the start button to the specified input."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:05"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 12 minutes. The program uses a TON timer set for 10 minutes at address T4:0. The conveyor restarts only after a manual reset. What should be checked or fixed to prevent the unexpected stop?\n\nA) Increase the timer preset to 15 minutes \nB) Check if the timer is being reset properly after timing out \nC) Replace the PLC power supply \nD) Decrease the conveyor speed"
},
{
"role": "assistant",
"content": "Answer: B) Check if the timer is being reset properly after timing out\n\nExplanation: The timer likely reaches its preset and stops the conveyor; ensuring it resets prevents unintended stops."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:05"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan cycle time range for a standard industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 100 to 500 milliseconds \nC) 1 to 5 seconds \nD) 10 to 30 seconds"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard industrial PLCs usually operate with scan times in the low milliseconds range for real-time control."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:06"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: \nIn a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds = 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:06"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan cycle time range for a standard PLC in an industrial automation system?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard PLCs usually operate with scan times in the millisecond range to balance speed and reliability."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:06"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Complete the missing line in the following Structured Text (ST) snippet to start a TON timer named Timer1 with a preset time of 500 ms when the input Start is TRUE:\n\n```pascal\nIF Start THEN\n Timer1(IN := TRUE, PT := T#500MS);\nELSE\n Timer1(IN := FALSE);\nEND_IF;\n```\n\nMissing line: \nA) Timer1(Q); \nB) Timer1(IN := TRUE, PT := T#500MS); \nC) Timer1(PT := T#500MS); \nD) Timer1(IN := FALSE);"
},
{
"role": "assistant",
"content": "Answer: B\n\nExplanation: The timer must be called with the input IN set to TRUE and the preset time PT assigned to start counting."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "code_completion",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:07"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds make 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:07"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common communication protocol used in industrial PLC systems for device networking?\n\nA) HTTP \nB) Modbus \nC) FTP \nD) SMTP"
},
{
"role": "assistant",
"content": "Answer: B \nExplanation: Modbus is widely used for communication between industrial devices and PLCs."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:08"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Complete the missing line in the following Structured Text code snippet to start a TON timer with a preset time of 5 seconds:\n\n```pascal\nVAR\n Timer1 : TON;\n StartSignal : BOOL := TRUE;\nEND_VAR\n\nTimer1(IN := StartSignal, PT := T#5s);\n__________;\n```"
},
{
"role": "assistant",
"content": "Answer: Timer1(Q);\n\nExplanation: The output Q of the TON timer indicates when the preset time has elapsed and must be read to check timer completion."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "code_completion",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:08"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a timer (T1) set for 900 seconds to trigger a motor stop command. The timer never reaches the preset value, and the motor stops prematurely. What should be checked or fixed?"
},
{
"role": "assistant",
"content": "Answer: Check if the timer T1 is being reset or disabled unintentionally in the program.\n\nExplanation: An unintended reset or disable of the timer prevents it from completing the 900-second count, causing premature motor stop."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:08"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt shows that the motor does not start when the start button is pressed. The PLC program uses input I0.1 for the start button and output Q0.3 for the motor. The input status indicator on the PLC shows I0.1 is OFF even when the button is pressed. What should be checked first?\n\nA) The wiring and connection of the start button to input I0.1 \nB) The output relay Q0.3 for the motor \nC) The power supply voltage to the PLC \nD) The program logic for the motor start sequence"
},
{
"role": "assistant",
"content": "Answer: A) The wiring and connection of the start button to input I0.1 \nExplanation: If the input status does not change when the button is pressed, the physical input wiring or connection is the most likely cause."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:08"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before timing out?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds since 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:09"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a timer TON with a preset of 900,000 ms to trigger a maintenance alert. The alert never activates, and the conveyor halts without any error codes. What should be checked or fixed to resolve this issue?"
},
{
"role": "assistant",
"content": "Answer: Check if the timer is correctly enabled and accumulating time, and verify the timer preset value matches the intended duration.\n\nExplanation: The timer may not be running or the preset might be incorrect, preventing the alert and causing unexpected stops."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:10"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common scan cycle time range for a typical PLC in an industrial automation system?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A \nExplanation: Typical PLC scan cycles usually range from a few milliseconds up to tens of milliseconds to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:11"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a PLC program, if a timer is set with a preset value of 5000 milliseconds, how many seconds will the timer run before it triggers?"
},
{
"role": "assistant",
"content": "Answer: 5 seconds\n\nExplanation: 5000 milliseconds equals 5 seconds because 1000 milliseconds equal 1 second."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:11"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a timer set for 900 seconds (15 minutes) to trigger a motor stop command at address %Q0.2. The motor does not restart even after resetting the timer. What should be checked or fixed first?\n\nA) Check if the timer is configured with the correct time base. \nB) Verify if the motor output at %Q0.2 is physically damaged. \nC) Inspect if the program logic resets the timer properly after stopping. \nD) Replace the PLC power supply unit."
},
{
"role": "assistant",
"content": "Answer: C) Inspect if the program logic resets the timer properly after stopping.\n\nExplanation: If the timer is not reset in the logic, it will keep the motor off after the initial 15 minutes."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:11"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common scan cycle time range for a typical PLC in an industrial automation system?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A \nExplanation: Typical PLC scan cycles usually range from a few milliseconds to tens of milliseconds to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:11"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, program execution takes 15 ms, and output writing takes 3 ms, what is the total scan time?"
},
{
"role": "assistant",
"content": "Answer: 23 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:11"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a timer TON with a preset of 900,000 ms to trigger a safety check. The conveyor motor output at address Q0.2 never energizes after the stop. What should be checked first to troubleshoot this issue?\n\nA) Verify the input sensor at I1.0 is functioning \nB) Check if the TON timer has timed out and reset properly \nC) Inspect the power supply voltage to the PLC \nD) Replace the conveyor motor"
},
{
"role": "assistant",
"content": "Answer: B) Check if the TON timer has timed out and reset properly \nExplanation: A misconfigured or stuck timer can prevent the motor output from energizing after the preset time."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:11"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, program execution takes 15 ms, and output writing takes 3 ms, what is the total scan time in milliseconds?"
},
{
"role": "assistant",
"content": "Answer: 23 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:13"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Question: In a typical PLC scan cycle, if the input reading takes 5 ms, program execution takes 15 ms, and output writing takes 3 ms, what is the total scan time in milliseconds?"
},
{
"role": "assistant",
"content": "Answer: 23 ms\n\nExplanation: The total scan time is the sum of input reading, program execution, and output writing times."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "open",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:13"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a timer with a preset of 900 seconds (15 minutes) to trigger a safety check. The conveyor does not restart automatically. What should be checked or fixed to resolve this issue?\n\nA) Increase the timer preset to 1800 seconds \nB) Verify if the timer is resetting after the safety check \nC) Replace the conveyor motor \nD) Disable the safety check timer"
},
{
"role": "assistant",
"content": "Answer: B) Verify if the timer is resetting after the safety check \nExplanation: If the timer is not reset, it will stay elapsed and prevent the conveyor from restarting."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:13"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 15 minutes. The program uses a timer T1 set to 900,000 ms to trigger a safety check. The conveyor does not restart even after resetting the timer. What should be checked or fixed first?\n\nA) Verify the timer preset value is correct \nB) Check if the timer T1 is being reset properly in the code \nC) Inspect the physical conveyor motor connections \nD) Replace the PLC power supply"
},
{
"role": "assistant",
"content": "Answer: B) Check if the timer T1 is being reset properly in the code \n\nExplanation: If the timer is not reset, it will not restart the conveyor after timing out."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:14"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is a common scan cycle time range for a typical industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A \nExplanation: Typical PLC scan cycles usually range from a few milliseconds to tens of milliseconds for efficient real-time control."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:14"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "Which of the following is the typical scan cycle time range for a standard industrial PLC?\n\nA) 1 to 10 milliseconds \nB) 1 to 10 seconds \nC) 1 to 10 microseconds \nD) 1 to 10 minutes"
},
{
"role": "assistant",
"content": "Answer: A) 1 to 10 milliseconds \nExplanation: Standard industrial PLCs usually complete their scan cycles within a few milliseconds to ensure timely control responses."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "classify",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:14"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in PLCs and IEC 61131-3. Provide accurate, concise and safe answers. All content must be 100% synthetic (no reuse of existing documents). Avoid step-by-step reasoning, only give the final short explanation if needed.\n"
},
{
"role": "user",
"content": "A PLC controlling a conveyor belt stops unexpectedly after running for 45 minutes. The program uses a timer TON with a preset of 300000 ms to delay the belt start. The conveyor motor output at address Q0.2 does not activate when the timer finishes. What should be checked first to fix the issue?\n\nA) Verify the timer preset value is correct. \nB) Check if the input sensor at I1.0 is functioning. \nC) Inspect the wiring of the motor output Q0.2. \nD) Restart the PLC to reset the timer."
},
{
"role": "assistant",
"content": "Answer: C) Inspect the wiring of the motor output Q0.2.\n\nExplanation: If the timer completes but the motor does not start, the output wiring or connection is the most likely cause."
}
] |
{
"subject": "industry_plc",
"subdomain": "generic",
"difficulty": "easy",
"question_type": "troubleshoot",
"generator": "llm-plc-synthetic-v3-azure",
"created_utc": "2025-08-27T11:34:15"
}
|
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