Checking The Buffer Memory; Event History Function - Mitsubishi Electric MELSEC iQ-F Series User Manual

Checking the buffer memory

The buffer memory can be used to check for errors that have occurred in FX5-ENET.
Module error
If an error occurs in FX5-ENET, check the following buffer memory areas.
Buffer memory address Buffer memory name
Un\G29 Latest error code
Un\G158 Initial status
Un\G159 Initial abnormal code
For the stored error code, refer to  Page 111 Module error.
Ethernet communication error
If an error occurs during general-purpose Ethernet communication, the error code will be stored in the following buffer
memory.
Buffer memory address Buffer memory name
Un\G108 to Un\G139 Error code
For the stored error code, refer to  Page 119 Ethernet communication error.

Event history function

This function collects errors from FX5-ENET, and keeps them in the SD memory card, and data memory or battery backed
built-in RAM of the CPU module.
The event information collected by the CPU module can be displayed on GX Works3 to check the occurrence history in
chronological order.
Event type Classification
System Error
For event code, refer to  Page 125 List of Event Code.
Setting procedure
The event history function can be set from the event history setting window of GX Works3. For the setting procedure, refer to
the following.
MELSEC iQ-F FX5 User's Manual (Application)
Displaying event history
Access the menu of GX Works3. For details on the operating procedure and how to view the contents, refer to the following.
GX Works3 Operating Manual
Description
Stores the latest error code.
It is possible to confirm whether the initialization is normally completed.
An error code will be stored when the initialization is abnormally completed.
Description
Stores the error code of each connection (1 to 32).
Description
An error detected by the self diagnostics in FX5-ENET.
10.2 Checking the Module Status
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