Mitsubishi Electric GT15-J71GP23-SX User Manual page 14

(1) Indicator LED
A LED indicates the status of the CC-Link IE communication unit and the
communication status.
When the LED is lighted up, there are two display formats, one for the
normal mode and the other for the error mode.
(1) Normal mode
If any communication error occurs in the normal mode, specify the
error cause by the [NETWK unit status display] screen of the GOT
utility.
Refer to the User's Manual for the GOT used for details on the
[NETWK unit status display] screen.
LED name
RUN
SD
RD
ERR.
(2) Error mode
When the RUN LED is blinking, the LED display format is the error
mode.In the error mode, if an error occurs, restart the GOT.
If the error mode is not released after restarting the GOT, the system
alarm "460 Communication unit error" may occur.
For system alarms, refer to the User's Manual for the GOT used.
LED name
RUN
RD
ERR.
Status
Off The GOT is being reset.
On The unit is in a normal status.
Off Not sending data
On Sending data
Off Not receiving data
On Receiving data
Off Normal status
On Communication error
Status
Blinking Shows that it is in the error mode.
On or off No error
Off No hardware failure
On Hardware failure
Off No starting error
On Starting error
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Description
Description