Festo Compact Performance CP-FB9-E - Diagnosis LED BUS ERROR

3.1.3 Diagnosis LED BUS ERROR
Possible PROFIBUS-specific LED displays on the oper-
ating status of the CP node are listed below.
Error displays BUS ERROR;
( = lights up; = LED flashes; = out)
LEDs Operating status Error treatment
BUS
(fast)
Station number not permitted Correct station number
BUS
(at 1 s intervals)
Fieldbus connection not correct.
Possible causes:
– Station number not correct
(e.g. address assigned twice)
– fieldbus module switched off
or defective
– interrupted, short-circuited
or faulty fieldbus connection
– Configuration not correct
Check nominal <> actual status
Check the ...
• setting of the address
selector switch
• fieldbus module
• fieldbus connection
• configuration
BUS Valve test –
(Conclude valve test)
3. Diagnosis
3-6 CP FB13-E 9904b