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Profibus interface center, Spc3 – Siemens SPC3 User Manual

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PROFIBUS Interface Center

SPC3

Page 12

V1.3

SPC3 Hardware Description

2003/04

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

The complete internal RAM of the SPC 3 is divided logically into 192 segments. Each segment consists of 8
bytes. For more informations about the contents of the 3 memory areas see previous chapter.The physical
address is build by multiplikation with 8.

Segment 0

Segment 1

Segment 191

Segment 190

8 Bit Segmentaddresses
(Pointer to the buffers

Segment 2

0

10

internal SPC 3 RAM (1.5 kByte)

0

7

+