Installation
Configuration options
Figure 8-1 illustrates a number of configuration options for the operating unit, PLC
and configuration computer.
PLC
SIMATICS7–200
Operating unit
IF1B
RS485
Groundingconnection
Power supply
PC
PU 7xx
Configuration computer
Figure 8-1
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.
Power supply
The power supply for the operating unit is connected at the 2-pin plug connector on
the underside of the unit. Use the 2-pin terminal block supplied for this purpose.
The terminal block is designed for cables with a cross-section not larger than
2
2.5 mm .
The figure illustrates a view of the underside of the unit.
1
2
GND
+24 V DC
Please refer to the technical data in appendix A for information on the power
supply requirements.
TP070 Equipment Manual
Release03/00
8-5
SIEMENS [ Siemens Semiconductor Group ]
