Siemens simatic hmi op7 - Connections to PLC

14-6
Equipment Manual OP7, OP17
Release 04/99
14.2.3 Connections to PLC
Figure 14-3 shows the basic options for connecting the OP to the PLC. For
further details concerning the dif ferent OP versions please refer to T ables
16-1 and 16-2 in Chapter 16. Standard cables are available for the connec -
tions shown in the figure (refer to the ST80.1 catalog).
TTY active
RS232
TTY active
1) 2)
PU interface
SI 2
RS232
(9/25-pin)
RS422 (9-pin)
SIMA TIC S5
TTY active
CP523
TTY active
RS232
TTY/RS232
converter
RS232
Other-make
PLCs
RS422/RS485
RS422/RS485
CPU
SIMA
TIC 500/505
PROFIBUS-DP
SIMATIC
S7/M7
RS232/TTY
1) Not
with OP7-DP and OP17-DP
2) Do not use the converter cable from Siemens for connecting via TTY , since
OP7-DP and OP17-DP do not supply 20 mA.
3) Any PROFIBUS bus terminal (except FSK)
3)
CP521 SI
IF1 A
IF1 B
OP7,
OP17
OP7
IF2
OP17
RS232
TTY
passive
COM1/2
(9/25-pin)
PU
PC
COM1/2
(25-pin)
RS232
COM1/2
(9-pin)
Figure 14-3 Connection Configuration Scheme for PLCs
Connection
Configuration
Scheme