Siemens SIMATIC TP 270

Technical data
12.4 Interfaces
TP 270, OP 270, MP 270B (WinCC flexible)
Operating Instructions, Edition 03/2004, 6AV6691-1DD01-0AB0
12-9
12.4 Interfaces
IF1A
5
1
96
Table 12-1 9-pin Sub-D plug (pin)
Pin RS 232
1 -
2 RXD
3 TXD
4 -
5 GND
6 -
7 RTS
8 CTS
9 -
IF1B
5
1
96
Table 12-2 9-pin Sub-D socket (configuration via switch)
Pin RS 422 RS 485 / PROFIBUS-DP / MPI
1 N.C.
2 N.C.
3 TXD+ Data B
4 RXD+ RTS-AS
5 GND (floating)
6 +5 V (floating)
7 N.C.
8 TXD- Data A
9 RXD- -