Siemens SIMATIC HMI TP 170A Equipment Manual page 47

Configuration options
Figure 7-1 illustrates a number of configuration options for the operating unit, PLC
and configuration computer.
Power supply
Figure 7-1 Configuration options
Detailed information on connection options is provided in the following pages.
Information on the connection plug pin assignment for the interfaces are provided
in Appendix B of this manual.
TP 170A Equipment Manual
Release 12/99
CuuDuongThanCong.com
PLC
SIMATIC S7
Optionally
DIL switches
(Settings, see Page 7-9)
IF1B
RS485
Grounding connection
PC
PU 7xx
Configuration computer
PROFIBUS-DP
Operating unit
IF1A
RS232
PC
PU 7xx
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Installation
7-5