Basic Documentation

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Siemens RWD Primary Controls Modbus Interface CB1P3099en_01
Building Technologies Table of Contents 27.10.2009
Table of Contents
1 About This Document.................................................................................4
1.1 Before Starting...............................................................................................4
1.2 Additional Documents....................................................................................4
1.3 Abbreviations & Terminologies......................................................................5
1.4 Important Notes.............................................................................................5
2 Product Overview........................................................................................6
3 Commissioning SEZ50MB..........................................................................8
4 Modbus Operation.....................................................................................10
5 RWD Parameters & Addresses.................................................................14
6 Appendix A:Standard IEEE-754 Format...................................................23
6.1.1 General Description.....................................................................................23
6.1.2 Data Formats...............................................................................................23
7 Appendix B: Generating A CRC16 Check Sum.......................................24
8 Trouble Shooting Hints.............................................................................26