CP 503/A, CP 505/A,D,K, CP 507/
A,C
Connections and wiring
Project engineering manual V1.06
44
© KEBA 2021
6.7.4
Cable and plug specification
For details, refer to the system manual.
6.8
Serial interface
The module offers 1 configurable serial interface (X51A SI) at the front side,
which can be used in different modes. The mode can be set on the software
side.
6.8.1
RS-232-C interfaces
Via RS-232-C interface participants can comminicate by point-to-point con-
nection. The wire has to be shielded.
6.8.1.1
Pin assignment
Fig. 6-31: Industrial Mini I/O socket type 2
RS-232-C
Pin-No.
Signal designation
Input/output
1
TxD
Transmit Data
Output
2
RTS
Request To Send
Output
3
RxD
Receive Data
Input
4
n.c.
Not connected
---
5
n.c.
Not connected
---
6
CTS
Clear To Send
Input
7
n.c.
Not connected
---
8
GND
Ground (Signal ground)
---
6.8.1.2
Bus termination
Information
The RS-232-C bus does not require bus termination.
To deactivate bus termination the DIP switch (S1) on the front of the module
is set (see "Serial interface configuration").
