Chapter 18 Monitor Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

Process cpu module

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MONITOR FUNCTION

This chapter describes the functions for checking the CPU module operation.

Circuit monitor

Device/buffer memory batch monitor

Program monitor list

Interrupt program monitor list

In a redundant system with redundant extension base unit, if systems are switched while the monitoring/test

function is being used on the modules on the extension base units, the following operations are performed.

• If monitoring is performed during system switching, an error occurs.

• If the new standby system is connected after system switching, monitoring stops or a fixed value (FFFFH(-

1)) is displayed.

18 MONITOR FUNCTION

Checks the status of the running program on the program editor.

Checks the current values of the device and buffer memory in a batch.

Registers a device and label and checks the current values.

Checks the processing time of the running program.

Checks the number of executions of the interrupt program used in the

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