Module Error Collection Function - Mitsubishi Electric MELSEC-L LD75P User Manual

13.7

Module Error Collection Function

This function collects errors and alarms occurred in the LD75 in the CPU module. Those errors and alarms are stored
in a memory (latch area) of the CPU module as module error logs. The stored error logs are retained even when the
CPU module is powered off or reset.
Error history of CPU module (including built-in I/O function
and built-in CC-Link function) and intelligent function
module is displayed in one screen.
Errors in the entire system can be monitored in reverse
chronological order.
Error history display
Time
19:29
19:33
19:34
19:36
For details on the module error collection function, refer to  Page 640, Section 15.1.
618
Programming tool
Module in error Error code
Module A Error A1
CPU Error C1
Module B Error B1
Module A Error A2
[Example of screen display]
Module A
CPU
19:29 Error A1 occurred!
19:36 Error A2 occurred!
19:33 Error C1 occurred!
Error history
(CPU module)
19:33 Error C1
Module B
19:34 Error B1 occurred!
Module error log
Time Module in error Error code
19:29 Module A Error A1
Error B1
19:34 Module B
19:36 Module A Error A2