___ is the process of finding the cause, or fault, of a machine malfunction. - ANSWER
Troubleshooting
What else is used to troubleshoot a PLC besides the status indicators and PLC software? -
ANSWER LCD screen of a PLC
Using a series of tests to isolate the problem to a specific component is a process of systems-
level __________. - ANSWER Troubleshooting
In a previously working PLC system, which of these problems will NOT appear as a processor
fault or fault message? - ANSWER Switches, solenoids, indicators, and contacts failures
If the processor faults, program execution is __________. - ANSWER Halted
One of the tools the PLC provides to help monitor and troubleshoot the system is status or
diagnostic __________. - ANSWER Indicators
What is the FIRST check you should make if a machine suddenly fails, all PLC indicators are
now off, and the other machines in the area are still operating? - ANSWER Check the
main power disconnect.
Technicians respond to machine failures by identifying the __________ and formulating
possible causes and remedies. - ANSWER Symptoms
Which part of the PLC system should you troubleshoot if the power distribution circuit has
powered down? - ANSWER Entire PLC system
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Troubleshooting
What else is used to troubleshoot a PLC besides the status indicators and PLC software? -
ANSWER LCD screen of a PLC
Using a series of tests to isolate the problem to a specific component is a process of systems-
level __________. - ANSWER Troubleshooting
In a previously working PLC system, which of these problems will NOT appear as a processor
fault or fault message? - ANSWER Switches, solenoids, indicators, and contacts failures
If the processor faults, program execution is __________. - ANSWER Halted
One of the tools the PLC provides to help monitor and troubleshoot the system is status or
diagnostic __________. - ANSWER Indicators
What is the FIRST check you should make if a machine suddenly fails, all PLC indicators are
now off, and the other machines in the area are still operating? - ANSWER Check the
main power disconnect.
Technicians respond to machine failures by identifying the __________ and formulating
possible causes and remedies. - ANSWER Symptoms
Which part of the PLC system should you troubleshoot if the power distribution circuit has
powered down? - ANSWER Entire PLC system
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