Chapter 9 Cpu Module Operation Processing; Operation Processing By Operating Status - Mitsubishi Electric MELSEC iQ-R Series User Manual

9
CPU MODULE OPERATION PROCESSING
Here is a list of the operating status of the CPU module:
• RUN state
• STOP state
• PAUSE state
9.1

Operation Processing by Operating Status

This displays operation processing according to the operating status of the CPU module.
Operation processing in RUN state
In RUN state, the program operation is repeatedly performed in the following order: Step 0  END/FEND instruction  Step
0.
■Output at the time of entering RUN state
Depending on the setting of output (Y) at the time of change from STOP state to RUN state, either of the following is output.
( Page 137 Output mode at operating status change (STOP to RUN))
• Status of the output (Y) that was saved during the STOP state
• Operation result after the completion of one scan
The device memory other than the output (Y) holds the status immediately before the RUN state. However, if a device initial
value is set up, this initial value is set. In addition, the local devices are cleared.
Operation processing in STOP state
In STOP state, the operation is stopped (state with a stop error included).
■Output at the time of entering STOP state
All points are turned off with the output status immediately before the STOP state saved. The device memory other than the
output (Y) holds the status immediately before the STOP state.
Operation processing in PAUSE state
In PAUSE state, the program operation is suspended holding the status of the output and the device memory after the
completion of one scan.
9 CPU MODULE OPERATION PROCESSING
9.1 Operation Processing by Operating Status
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