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Troubleshooting with the DeviceNet Unit Indicators Section 9-1
Likely Cause
The setting operation failed because a structure error occurred.
DeviceNet Unit Response
The only response is the error code displayed on the 7-segment display. The
error display will be cleared the next time that a settings operation is com-
pleted normally.
Correction
Correct the cause of the structure error. (See errors d0 to d2.)
Incorrect Setting
Likely Cause
There was an error in the parameters specified in the user settings and the
requested settings could not be made.
DeviceNet Unit Response
The only response is the error code displayed on the 7-segment display. The
error display will be cleared the next time that a settings operation is com-
pleted normally.
Correction
Check the parameters in the user settings and try the operation again.
Multiple Switches ON
Likely Cause
Two or more software switches were ON simultaneously or a second software
switch was turned ON before a prior operation was completed.
DeviceNet Unit Response
The only response is the error code displayed on the 7-segment display. The
error display will be cleared the next time that a settings operation is com-
pleted normally.
Correction
Execute software switch operations one at a time.
Network Errors
Network Power Error
Note The NS indicator will flash red if the error occurs during remote I/O communi-
cations, otherwise the indicator will be OFF.
Likely Cause
The communications power supply is not being supplied properly from the
network.
DeviceNet Unit Response
Records the error in the error log.
As long as power isn’t being supplied remote I/O communications will remain
stopped and errors will be returned in response to requests for message
transmissions. The indicator status, scanning, and message processing will
7-segment MS indicator NS indicator Error log (Hex)
C5 --- --- ---
7-segment MS indicator NS indicator Error log (Hex)
C6 --- --- ---
7-segment MS indicator NS indicator Error log (Hex)
E0 --- OFF or Red (flashing)* 0341