Restart Communication Between The Bus Node And The Device; Check Fieldbus Communication - Festo CTEU-DN Description, Functions And Maintenance

6. Error handling
Error status 2

6.1.3 Restart communication between the bus node and the device

Problem description: X1 and X2 flash red simultaneously.The check of the mechanical
Remedy

6.1.4 Check fieldbus communication

Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
The load voltage supply for the connected device is missing
or exhibits undervoltage:
– PS-LED flashes green
and
– X1 and/or X2-LED flash green
Note
Requirement for diagnostics via LED display:
The connected device must support this diagnostic function.
(Additional information can be found in the respective device
description).
connection between bus node and device (dismantling/in-
stalling) effected no change. The fault cannot be eliminated in
this way.
Proceed as follows:
1. Disconnect the operating voltage.
2. Check, sever and re-establish the electrical connection
between the bus node and connected devices.
3. Restore voltage.
X1 and/or X2 illuminate or flash green.
Compare the desired baud rate with the baud rate set on
•
the bus node (DIL switch setting).
Compare the desired station number (NodeID) with the
•
station number set on the bus node (DIL switch setting).
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