Rs232 (Com1) - Siemens SIMATIC ITP1000 Operating Instructions Manual

Technical specifications
6.4 External interfaces
6.4.4

RS232 (COM1)

Pin no.
1
2
3
4
5
6
7
8
9
80
Short description Meaning
DCD Data carrier detect
RxD Received data
TxD Transmit data
DTR Data terminal ready
GND Ground
DSR Ready for operation
RTS Request to send
CTS Clear to send
RI Incoming call
Input / output
Input
Input
Output
Output
-
Input
Output
Input
Input
Operating Instructions, 05/2017, A5E37340160-AB
SIMATIC ITP1000