User`s manual

4
(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 GT15 User's Manual for details on the [NETWK unit status
display] screen.
(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 GT15 User's Manual.
LED name Status Description
RUN
Off The GOT is being reset.
On The unit is in a normal status.
SD
Off Not sending data
On Sending data
RD
Off Not receiving data
On Receiving data
ERR.
Off Normal status
On Communication error
LED name Status Description
RUN
Blinking Shows that it is in the error mode.
On or off No error
RD
Off No hardware failure
On Hardware failure
ERR.
Off No starting error
On Starting error