Mitsubishi Electric FX3U-ENET-ADP - How to Turn off ERR. LED and to Read;Clear Error Information

9 Troubleshooting
9.1 How to Check Errors Using LED Displays
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FX3U-ENET-ADP User's Manual
1
Introduction
2
Specification
3
System Configuration
4
Installation
5
Wiring
6
Introduction of Functions
7
Communication Using MC Protocol
8
The Operation of GX Works2
9
Troubleshooting
A
List of Special Devices
*1. Confirm the completion for initial processing and check whether or not there is any problem in the
cable connection and the Ethernet lines. Refer to Section 6.10, "Confirming the completion of the
Initial Processing" for details on confirming the completion for initial processing.
9.1.2 How to turn off ERR. LED and to read/clear error information
It is possible to turn OFF the [ERR.] LED, read the error information and clear the error information using the
Ethernet diagnostics function of GX Works2.
Click the [COM.ERR off] button on the Ethernet diagnostics screen to turn OFF the [ERR.] LED which was
flickering.
For Ethernet diagnostics of GX Works2, refer to Section 8.6 and Section 9.2.
SD/RD
The [SD/RD] LED does
not flash when sending
and receiving data.
1) [ERR.] LED turns on.
- Remove the factors that turn on the [ERR.] LED.
2) Poor cable connection
- Check the connection of the cable.
*1
3) Local station IP address setting error
- If the cable connection is all right, review each setting value of the local station IP
address, router setting, and sub-net mask settings using GX Works2.
4) Program review is required
- Review the sending program of the external device.
ERR.
Turns on after powering
on the PLC (Ethernet
adapter).
1) Ethernet adapter parameter setting error
- Check/correct the parameter setting values for Ethernet adapter using the GX Works2.
2) Ethernet adapter error (H/W error)
- For repair, contact your local Mitsubishi Electric representative.
Flicker after powering on
the PLC (Ethernet
adapter).
Or flicker temporarily
1) Check the contents of the error using the error codes stored by the error detection of the
following and remove the causes.
- Initial processing
- Open processing
- MC protocol communication processing
- Other processing (processing for which error codes are stored in the error log area)
2) For error codes, refer to Subsection 9.3.1.
OPEN Does not turn on
1) Poor cable connection
- Check the connection of the cable.
*1
2) Program or parameter review is required
- Check the program or parameters.
- Check error contents with the diagnosis function of GX Works2.
LED name Status to check Cause/corrective action