Checking The Module Status; Module Diagnostics - Mitsubishi Electric MELSEC iQ-R Series User Manual

4.2

Checking the Module Status

Module diagnostics

The following functions can be used in the "Module Diagnostics" window of the RJ71DN91.
Functions
Error Information
Module Information List
Error Information
Check the details of the error currently occurring and action to remove the error.
Item
Status
Error Code
[Error Jump] button
[Event History] button
[Clear Error] button
Detailed Information
Cause
Corrective Action
4 TROUBLESHOOTING
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4.2 Checking the Module Status
Usage
Displays the details of the errors currently occurring.
Displays various status information of the RJ71DN91.
Description
Major: An error such as hardware failure or memory failure. The module stops operating.
Moderate: An error, such as parameter error, which affect module operation. The module stops operating.
Minor: An error such as communication failure. The module continues operating.
Displays error codes for module diagnostics to check errors which have occurred on the own node. ( Page 59 Error code for
module diagnostics (own node error))
The RJ71DN91 does not support the error jump function.
Clicking the button displays the event code to check the history of errors that have occurred on the other nodes while the master
function was being used by the own node, errors detected on each module, and operations that have been executed. ( Page
62 Event code (other node error))
For the minor errors (the module does not stop operating), the following operations are executed.
• The ERR LED is turned off.
• The display in "Error Status" in the "System Monitor" window is deleted.
• The display in the [Error Information] tab in the "Module Diagnostics" window is deleted.
However, when the mode switch setting is hardware test or communication test, the above operations are not executed.
Displays detailed information about each error (maximum of 3 pieces).
Displays the detailed error causes.
Displays the actions to eliminate the error causes.