Festo CPX-M-FB20 Manual page 79

2. Commissioning
Festo P.BE-CPX-FB20/21-EN en 1202a
Prerequisites for parameterisation
With the system parameter "System start" you can influence
the starting reaction. If possible select the setting "System
start with default parametrisation and current CPX expansion".
The desired parameterisation can then be carried out in the
initialisation phase or user-controlled.
Note
The CPX terminal can only be parameterised if the system
parameter "System start" has the setting "System start
with default parametrisation and current CPX expansion".
If the M LED lights up permanently after the system start,
then "System start with saved parametrisation and saved CPX
expansion" is set. In this case, no other parameterisation can
be carried out.
Caution
In the case of CPX terminals on which the M LED lights up
permanently, the parameterisation will not be restored
automatically by the higher-order system if the CPX
terminal is replaced during servicing. In these cases, check
before replacement to see which settings are required and
carry out these settings.
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