PLC Exam Questions

PLC
1

PLC Exam Questions

  1. Determine what the time base is for a timer instruction in a CompactLogix processor.

  2. Determine what is the data range for a timer type of tag in a CompactLogix processor.

  3. Predict the operation of a CompactLogix program that uses a TON & TOF together.

  4. Explain when a TOF instruction starts timing when the processor is in Run mode.

  5. Determine the data type for a timer status bit.

  6. Compare the difference in operation between a TON and TOF instruction.

  7. Calculate the delay time of a timer instruction, by viewing the values in the instruction.

  8. Explain how a TOF instructions’ accumulated value is adjusted by the processor when the processor is put into the Run mode.

  9. Predict the operation of a TON in a CompactLogix program, used in a start/stop configuration.

  10. Explain how the status bits operate when a TON instruction is true, and when it is false.

  11. Explain how the status bits operate when a TOF instruction is true, and when it is false.

  12. Interpret the information in RSLinx for an Ethernet, and an Ethernet IP driver, while viewing in RSWho.

  13. Explain the purpose of the PING command when using Ethernet & Ethernet IP drivers in RSLinx.

  14. Correlate the information on a cross reference search to the objects on the ladder logic program within RSLogix5000.

  15. Explain the operation of a CTU, CTD and RES instructions within a CompactLogix program.

  16. Explain the operation of all of the status bits of a Counter data type, when controlled by counter instructions within a CompactLogix system.

  17. Predict the operation of a ladder logic program using one TON to cascade to another TON instruction.

  18. Predict the operation of a ladder logic program using two TON instructions to control the on and off time of an OTE output instruction.

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