Chapter 9 Troubleshooting; Checking With Leds - Mitsubishi Electric FX5-ENET User Manual

9
TROUBLESHOOTING
This section contains an explanation of errors that may occur during communication between FX5-ENET and other devices,
and troubleshooting for such errors.
9.1

Checking with LEDs

This section describes troubleshooting using the LEDs.
The error status can be determined by the status of the RUN LED and ERROR LED.
RUN LED
Off
On
On
*1 When multiple errors occur, the error status is displayed in the order of major, moderate, and minor.
When the RUN LED turns off
When the RUN LED turns off after the FX5-ENET is powered on, check the following.
Check item
Is the FX5-ENET mounted correctly?
If the above actions do not solve the problem, perform the hardware test to check for FX5-ENET failure. (Page 52
Hardware Test)
When the ERROR LED turns on or is flashing
When the ERROR LED turns on or is flashing, check the following.
Check item
Does any error occur in the module diagnostics?
When SD/RD LED turns off (When data cannot be sent/received)
When the SD/RD LED turns off and the data cannot be sent or received, check the following.
Check item
Is the ERROR LED on or flashing?
Is the Ethernet cable connected correctly?
Are the parameter settings correct?
If the above actions do not solve the problem, perform the hardware test to check for FX5-ENET failure. (Page 52
Hardware Test)
9 TROUBLESHOOTING
42
9.1 Checking with LEDs
ERROR LED Error status
On, flashing Major error
Flashing Moderate error
On Minor error
*1
Description
An error such as hardware failure or memory failure. The module stops
operating.
An error caused by an abnormal parameter affecting the module operation. The
module stops operating.
An error caused by improper or inconsistent configuration. The module
continues operating.
Action
Securely mount the FX5-ENET on the CPU module.
Action
Take the actions displayed in the module diagnostics. (Page 43 Module
diagnostics)
Action
Take the actions displayed in the module diagnostics. (Page 43 Module
diagnostics)
Connect the Ethernet cable again.
Review the details of the GX Works3 settings.