Siemens SIMATIC C7-635 - C7-635 with Connectors and Sockets, Bottom View

Installing and Wiring the C7-635
3-15
C7-635 Control System
A5E00155581-04
RS 232 X4
Table 3-5 RS232 Connection X4
Pin Name
Signal Description
1 DCD Received detector
2 RXD Received data
3 TXD Transmitted data
4 DTR Data terminal ready
5 GND Ground 5 V
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear to send
9 NC Not connected
Supply I/O DI 8 X 10
1
1
11
AI4 + 1 PT100 X 13
DO 16 X 12
DI 16 X 11
Figure 3-15 C7-635 with Connectors and Sockets, Bottom View
Siemens Controls