Siemens SIMATIC IM 151/CPU Manual page 18

Product Overview
Features of the IM 151/CPU Compared to Other Modules
The IM 151/CPU interface module has the following special features:
The interface module has PLC functionality (integrated CPU with 24 KB working
memory and 40 KB RAM load memory).
The interface module can be enhanced with up to 63 I/O modules from the
ET 200S range.
The interface module has an operating mode switch with positions for RUN-P,
STOP and MRES.
There are 6 LEDs on the front of the interface module to indicate the following:
– ET 200S faults (SF)
– Bus faults (BF)
– Supply voltage for electronic components (ON)
– Force requests (FRCE)
– Operating mode of the IM 151/CPU (RUN and STOP)
Variants for connection to the PROFIBUS-DP via RS485 and fiber-optic cables
(FO variant)
How Is the ET 200S Configured with the IM 151/CPU?
To configure the ET 200S with the IM 151/CPU (configuration and parameter
assignment), you require HWCONFIG , which is part of the configuration
software STEP 7 , as of V 5.1. You can find out how to configure the ET 200S with
the IM 151/CPU in Section 4.1 of this manual.
How Is the IM 151/CPU Programmed?
To program the IM 151/CPU, you require the STEP 7 configuration software, as of
V 5.1. You can find the STEP 7 instruction set for programming the IM 151/CPU in
Appendix B.
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ET 200S Interface Module IM 151/CPU
A5E00058783-01