Festo IIFB11-02 Series, Manual, Page: 164 / 210

Reaction Sequence Operating status Error treatment
ERROR LED
No internal terminal error,
No fitting error None
•
Non-permitted station
number set, station
address assigned twice
or max. value exceeded
•
Too many transmission
errors (error counter
overrun)
•
Correct station
address
•
Check cables/plug
connectors, switch valve
terminal on again
•
Blinks once when
switched on (LED test)
•
Time-out expired, no
valid telegrams received
during the time-out time,
bus error, communication
error or loss of
communication
•
None
•
Check connection to
PLC
Hardware error Servicing required
Fig. 6/3: LED display of operating status (continued)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
VIFB11 - 02 6. Diagnosis and error treatment
6-6
9902d