Festo CP-A04-M12-CL, Manual, Page: 22 / 86

1. System summary CP system
1−8
Festo P.BE−CPEA−CL−E N en 0404NH
CP modules without extended functions are distinguished by
the following features:
CP valve terminals and CP output modules possess an
incoming and a continuing CP interface.
CP input modules possess only an incoming CP interface
and can therefore only be placed at the end of a CP string.
CP master
VI / O I
VI / O
I
VI / O: CP valve terminal or
CP output module
I: CP input module
Fig.1/3: Setting up a CP system (without extended
functions), example
In accordance with these rules, all CP modules with extended
functions can also be connected to CP masters without ex
tended functions.