Mitsubishi Electric MELSEC-L LD75D, User Manual

Page: 620 / 818

618
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.
For details on the module error collection function, refer to  Page 640, Section 15.1.
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.
Programming tool
[Example of screen display]
Error history display
19:29
19:33
19:34
19:36 Module A
CPU
Module B
Module A
Error A1
Error C1
Error B1
Error A2
Time Module in error Error code
Error history
(CPU module)
Module error log
Time Module in error Error code
19:29
19:34
19:36 Module A
Module B
Module A Error A1
Error B1
Error A2 19:33 Error C1
CPU
Module A
Module B
19:33 Error C1 occurred!
19:29 Error A1 occurred!
19:36 Error A2 occurred!
19:34 Error B1 occurred!