Notes on Using this Manual and on the CE Symbol

To operate two or more CPUs in multiprocessor mode in your PLC, you will need Chapter 6.

SChapter 6 describes multiprocessor operation. This chapter contains all the measures you must take for startup of the PLC in multiprocessor operation. Described in Sections 6.5 and 6.6 are the 923C and 923A coordinators.

In Chapter 11 are the connector assignments of the individual modules and subracks.

The Appendix contains the ordering data for the products described in this manual, references to further reading and the index of keywords in this manual.

System Manual

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C79000-G8576-C199-06

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Siemens S5-135U/155U appendix System Manual C79000-G8576-C199-06