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(1) Module status and LED status
The following table shows how module status and LED status correspond each other.
Module status
Disconnecting
Data link in operation
Reserved station
Normal mode
specification in
progress
Link stop
Offset/gain setting mode
In progress
Completed
Unit test
successfully
Completed with an
error
Communication error
Major error
Error
Moderate error
Warning
Minor error
Alert issued
Alarm
Input signal error
occurred
*1
Either On, Flashing, or Off.
*2
Either On or Off.
*3
A failure of the module may not allow the LED to turn on.
22
Data link status
PW LED
Disconnection
On
Data link in operation
On
Cyclic stop
On
Cyclic stop
On
On
On
On
On
Cyclic stop
On
On
On
On
On
On
LED status
MODE
D LINK
RUN LED
LED
LED
On
On
Off
On
On
On
On
On
Flashing
On
On
Flashing
Off
Off
Flashing
*1
On
Flashing
On
Off
Off
On
Off
Off
On
On
Flashing
*2
*1
Off
*2
*1
On
*2
*1
On
*1
On
On
*1
On
On
ERR. LED
ALM LED
O/G LED
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
*1
Off
On
Off
Off
Off
Off
Off
Off
On
Off
Off
Off
Off
Off
*3
*1
Off
On
*1
On
Off
*1
Flashing
Off
*1
On
Off
*1
Flashing
Off
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Troubleshooting
