Festo Контроллер позиционирования CPX-CMPX - Manual (Page 206)

C. General information on parametrisation
C−8
Festo P.BE−CPX−SYS−EN en 0902e
C.3 Influence of signal states
You can influence the signal states of the CPX terminal
through the following functions:
Function Priority Brief description Signals able to
be influenced
Forcing 2) 1 Influences signal states independently of actual
signal states (see also section C.3.1) I/O signals
Fail safe 2 Determines signal states that become effective with
fieldbus communication faults (see also section
C.3.2) A signals
Idle mode 1) 3 Determines signal states that become effective
when changing into the Idle status (see also section
C.3.3) A signals
1) Only relevant for certain fieldbus protocols
2) Mainly used for test purposes in the commissioning phase.
Tab. C/1: Functions for influencing signal states
If several functions are active at the same time, the following
applies:
ć Force signals have the highest priority
ć Fail−safe signals have precedence over Idle mode signals.
Overview on the Force, Fail safe and Idle mode funcĆ
tions
Influencing output signals
With system parameters, you enter the fundamental settings
for the respective function. With appropriate setting of the
system parameter, you can determine, through channel−
specific module parameters, the desired signal state for each
channel individually. The following diagrams give an overview
of this: