Festo Электрический терминал СРХ - Manual (Page 49)

2. Installation
2−17
Festo P.BE−CPX−CEC−EN en 1004a
2.6.2 RS232 interface (CPX−CEC)
The RS232 interface enables a type FED operator unit or
external devices to be connected to the CPX−CEC.
When using external devices, data communication must be
programmed by the user.
Socket Pin Signal Explanation
1
2
3
4
5
6
7
8
9
Screen n.c.
RxD
TxD
n.c.
GND
n.c.
n.c.
n.c.
n.c.
Screen not connected
Received data
Transmitted data
not connected
Data reference potential
not connected
not connected
not connected
not connected
Connection to functional earth (FE)
Tab. 2/6: Pin assignment of the RS232 interface (CPX−CEC)