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CHAPTER 7 TROUBLESHOOTING
7
7.1 Checking an error with LEDs
7.1 Checking an error with LEDs
This section describes the procedure for checking an error with the LEDs of the MELSECNET/H remote I/O module
and the troubleshooting. Check the status of each LED in the following order.
For the module status corresponding to each LED indication, refer to Page 35, Section 4.2.
1. Check the RUN LED.
When the RUN LED is not on, perform the following troubleshooting.
Page 72, Section 7.1.1
2. Check the REM. LED.
When the REM. LED is off or flashing, perform the following troubleshooting.
Page 72, Section 7.1.2
3. Check the ERR. LED.
When the ERR. LED is on or flashing, perform the following troubleshooting.
Page 73, Section 7.1.3
4. Check the L ERR. LED.
When the L ERR. LED is on, perform the following troubleshooting.
Page 73, Section 7.1.4
5. Check the T.PASS LED.
When the T.PASS LED is off or flashing, perform the following troubleshooting.
Page 74, Section 7.1.5
6. Check the D.LINK LED.
When the D.LINK LED is off, perform the following troubleshooting.
Page 74, Section 7.1.6