The Synchronization Latch Count Value Does Not Change - Mitsubishi Electric MELSEC iQ-R User Manual

The synchronization latch count value does not change

Check item
Checking the system Is the flexible high-speed I/O control module
parameter settings of GX selected for a synchronization target module?
Works3
Checking the operating Is the RUN/STOP/RESET switch set to STOP
status of the CPU module or is the CPU module in the stop error status?
Checking the program Is the control of the hardware logic working?
Is the inter-module synchronous interrupt
program (I44) prepared?
Has the EI instruction been executed?
Checking the hardware logic Are the block layout and links between blocks in
the hardware logic correct?
Action
Check 'Synchronization status monitor' (Un\G8173). When 'Synchronization
status monitor' (Un\G8173) is Not the inter-module synchronization target
(0), the module is not selected for a synchronization target.
Set the module for a synchronization target in "System Parameter" of GX
Works3.
Set the RUN/STOP/RESET switch to RUN. When a stop error has
occurred, take actions described in the list of error codes.
Page 220 List of Error Codes
When 'Hardware logic control flag' (X4) is off, turn on 'Hardware logic
control start request' (Y4) to start the hardware logic control.
To acquire the synchronization latch count value, refresh the value by
executing the inter-module synchronous interrupt program.
To execute the inter-module synchronous interrupt program, execute the EI
instruction in the main program.
Check the block layout and links between blocks in the hardware logic and
make necessary corrections.
6.3 Troubleshooting by Symptom
6 TROUBLESHOOTING
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