Festo Контроллер позиционирования CPX-CMPX - Manual (Page 114)

4. Commissioning
4−10
Festo P.BE−CPX−SYS−EN en 0902e
4.3 Start−up behaviour of the CPX terminal
The desired parametrisation of the CPX terminal should be
carried out in the start−up phase or after fieldbus interrupĆ
tions by the plug−in module or the scanner/bus master, proĆ
viding this is supported by the fieldbus protocol used. In this
way you can be sure that when a CPX terminal has been reĆ
placed, the new terminal is operated with the same paraĆ
meter settings.
You can influence the start−up behaviour with the aid of the
system parameter System start (see section B.2.2). If possible
select the setting System start with default parameterising
and current CPX system equipment". The desired parameterĆ
ising can then be created in the start−up phase or after fieldĆ
bus interruptions e.g. by the plug−in module or the scanner/
bus master (depending on the fieldbus used).
If the MĆLED lights up permanently after the system start,
then System start with saved parametrising and saved CPX
system equipment" is set.
Caution
In the case of CPX terminals on which the M−LED lights up
permanently, parametrising will not be restored automatiĆ
cally by the higher−order system if the CPX terminal is reĆ
placed after servicing. In these cases check before replaĆ
cing to see which settings are required and carry out these
settings.
Detailed instructions can be found in the manual for the speĆ
cific CPX bus node or the manual for the handheld.