Siemens Multi Panel MP270 SIMATIC HMI, Equipment Manual

Page: 72 / 144

Installation
7-8
MP270 Equipment Manual
Release 01/99
7.2.2 Connect PLC
Connection configuration
Figure 7-3 illustrates the basic connection possibilities between the MP270 and
PLC. Standard cables are available for the connections shown (refer to the ST80
catalog).
TTY active
PG interface
SI 2
RS232 (9/25-pin)
RS422 (9-pin)
SIMATIC S5
TTY active
RS232
PLCs of other
manufacturers
RS422
RS422/RS485
CPU
SIMATIC 505
PROFIBUS-DP
SIMATIC S7
1)
RS232/TTY
1)
Use only the approved cables for connection to the SIMATIC S7.
2)
Any PROFIBUS-DP bus terminal (except FSK)
3)
To enable operation using the serial interface, connect either IF1A (RS232/TTY) or IF1B (RS422/485), but not
both. The 1F1B interface can be configured by means of the DIL switch (Page 7-9).
2)
IF1A
3)
IF1B
3)
RS485
RS485
MP270
Figure 7-3 Connection configuration for PLCs