System Communication And Address Assignment - Festo CPX-AP-I Manual

System communication and address assignment

5 System communication and address assignment
For internal system communication between the modules, two strings can be implemented via the
connections [XF20] and [XF21] of the interfaces with connecting cables. The connecting cables are con-
nected to the individual modules via connection [XF10]. Connection [XF20] is available for transmission
to another module.
The addresses of the modules are assigned automatically every time the automation system CPX-AP-I
is started. The interface is assigned address 1. The modules are addressed at terminals [XF20] and
[XF21] in ascending order for each string, starting with the string at terminal [XF20].
2
1
7
6
2
Fig. 2: System communication and addressing
1 Interface
2 Connection for system communication
[XF10]
3 Connection for system communication
forwarding [XF20]
4 String 2
Festo — CPX-AP-I — 2022-06a
3
3
5 String 1
6 Connection for system communication
string 2 [XF21]
7 Connection for system communication
string 1 [XF20]
4
5
11