Festo CPX-FB36 - 3.3 Behaviour of the outputs in the “Fail safe mode” or “Idle mode”

3. Commissioning
3-28
Festo CPX-FB36-EN en 1611a English
3.3 Behaviour of the outputs in the “Fail safe mode” or “Idle mode”
“Idle mode” is assumed by the participants after a request by
the master.
The error status (“Fail safe mode”, also referred to as “Fault
mode”) defines the status the relevant channel is to assume
in the event of fieldbus communication errors.
In this status, the following applies:
– Inputs are transmitted
– Output channels of the participants are no longer up
dated
In the “Fail safe mode” or “Idle mode”, outputs can assume
one of the following states:
Digital outputs/valves
Analogue outputs
Freeze current status Freeze current status
Reset the output Desired analogue value
Setting the output
Tab. 3/8: Possible states in the “Fail safe mode”/“Idle mode”
The status to be assumed for each output channel (output or
solenoid coil) can be determined separately. The standard
setting is “Reset of the output channel”.
Additional information can be found in the CPX system de
scription (è P.BE-CPX-SYS-...).