3 Commissioning as function module F24
46 Festo – P.BE-CPX-FB23-24-EN – 1305a – English
3.3.1 Parameters of the CPX terminal
You can set the behaviour of the CPX terminal as well as the behaviour of individual modules and chan-
nels through parametrisation. A distinction is made between the following parameterisation types:
– System parameterisation, e.g. deactivating error messages etc.
– Module parameterisation (module- and channel-specific), e.g.: monitoring, settings in case of error,
settings for Forcing.
A description and function of individual parameters are found in the CPX system descrip-
tion (P.BE-CPX-SYS-…).
Which module parameters are available for various CPX modules are found in the descrip-
tion for the respect ive CPX module.
“System start” parameter
The “System start” parameter allows you to set and determine the starting response of the CPX termin-
al.
As setting, select if possible “System start with saved parametrisation and CPX expan-
sion”.
With this setting, all parameters and the current expansion of the CPX terminal are stored
in the bus node.
If individual modules of the CPX terminal in t he service case are replaced, the set para-
meters are still valid and no new parameterisation must be carried out. A system start
with the setting “System star t with saved parametrisation and saved CPX expansion” can
take place.
The M-LED (modify LED) lights up only for the setting “System start with saved paramet-
erisation and CPX expansion”.
Caution
In case of a defect and replacement, saved settings are also lost. Therefore, the para-
meterisation should be kept in th e CPX-MMI or via CPX-FMT on a PC. It can be trans-
ferred to the spare bus node. Notes are found in the descriptions of CPX-MMI and CPX-
FMT.
If the CPX terminal is extended or modified ( for example, another module is integrated),
the system start must occ ur with the setting “System star t with default parameters and
the current CPX expansion”.
Subsequently, the startup parameters should be reset to “System start with saved
parameterisation and saved CPX expansion” and the CPX terminal will now be
reconfigured as needed.
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