Festo CTEU-CO, Manual, Functions And Maintenance

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3. Error treatment
3-7
Festo P.BE-CTEU-CO-OP+MAINT-EN en 1101NH
Fail State on: after fieldbus communication is restored the
outputs resume the status assumed before the failure
(“hold last state”).
3.1.6 Read out diagnostic messages via CANopen
The devices connected to the bus nodes can offer advanced
diagnostic options, which extend beyond the LED displays, if
LED X1 and/or X2 flashes green.
Option 1 Proceed as follows:
1. Activate Node guarding or Heartbeat on the master con-
troller.
2. Wait for the display of the Emergency Messages
(see Tab. 3/10) on the master controller.
Error causes Device
on the
bus node Byte
0 1 2 3 4 5 6 7
No load voltage or
insufficient load
voltage I-Port 1 20 33 85 12 51 00 00 res.
No load voltage or
insufficient load
voltage I-Port 2 20 33 85 00 00 12 51
Tab. 3/10: Extract from the Emergency Message table (see section 2.3.2)
Option 2 Proceed as follows:
•
Retrieve the SDO telegrams manually from the bus node
and evaluate them (see object directory in section A.2)