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Profibus interface center, Spc3, 12 appendix b: useful information – Siemens SPC3 User Manual

Page 66

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PROFIBUS Interface Center

SPC3

Page 64

V1.3

SPC3 Hardware Description

2003/04

Copyright (C) Siemens AG 2003. All rights reserved.

12 Appendix B: Useful Information

12.1 Data format in the Siemens PLC SIMATIC

The SPC3 always sends data from the beginning of the buffer till the end. 16Bit values are shown in the
Motorola format. For example:

Buffer pointer

high byte



Buffer pointer +1

low byte