SIMATIC VS710
Quick Reference Guide
SIMATIC VS 710
A5E00032597-02
17
2.8
RS232 Connector Pinout
Use the RS232 interface to connect the VS 710 to your programming
device / PC. The RS232 connector on the VS 710 is a shielded 9-pin
subminiature D connector.
The RS232 connector has the following pinout:
5
4
3
2
1
9
8
7
6
9-pin subminiature D connector
Figure 15
RS232 Connector
Pin
Signal
1
DCD (data carrier detect)
2
RXD (receive data)
3
TXD (transmit data)
4
DTR (data terminal ready)
5
Ground
6
DSR (data set ready)
7
RTS (request to send)
8
CTS (clear to send)
9
RI (ring indicator)
Shield
On connector casing
The serial port is a fully-fledged RS232 interface. The ground pin is
referenced to the internal ground. The interface is configured as a COM1
port and can be addressed as such. The maximum line length is 10 m with a
transmission rate of 115 Kbps.