Siemens 7 User Manual download pdf (Page 31)

Multiplexer Driver Developer’s Guide

7.4 Data Transfer

Mux_Drv_DevGuide_v07 Page 31 of 36 2006-9-27

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7.4.2 Block Flow Diagram for Data Sent to the Module via Virtual Port

Figure 7: Block flow diagram for data sent to the module via a virtual port

WrSendRequest()

Send Request Flow of a virtual Channel with

scanning of Break Signal '+++'

only the schema

ReadIntervalTime=0

TotalTIme=0

ScanFlags=0

PlusNb=0

TimeStamp=ActualTimerTick

DlistInsertHead

SerMuxSend()

end

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Siemens 7 User Manual Page 31