Connecting The Plc - Siemens simatic hmi op27 Equipment Manual

13.1.2

Connecting the PLC

Connection
Figure 13-3 illustrates the basic connection possibilities between the OP and
configuration PLC. Standard cables are available for the connections shown (refer to the
ST80.1 catalog).
Figure 13-3 Connection configuration diagram for PLCs
OP27, OP37 Equipment Manual
Release 05/99
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OP
2)
IF1A
2)
IF1B
1) Use only the approved cables for connection to SIMATIC S7/M7.
2) For operation via the serial interface, connect either IF1A (RS232/TTY) or IF1B
(RS422/485), but not both. The IF1B interface is configured by means of DIL swit-
ches.
3) Any PROFIBUS-DP bus terminal (except FSK)
Electrical Installation
TTY active
TTY active
TTY active
RS232
RS232
TTY passive
TTY/RS232
converter
RS232
RS422
RS232/TTY
RS422/RS485
RS485
RS485
3)
SIMATIC S5
CPU
PU interface
SI 2
CP521 SI
CP523
PU or PC
COM1/2
(9/25-pin)
SIMATIC 500/505
RS232
(9/25-pin)
RS422
(9-pin)
PLCs of other
manufacturers
1)
SIMATIC S7/M7
PROFIBUS-DP
13-5