Prosoft-technology MVI56E-MNETCR Uživatelský manuál stáhnout pdf (Strana 77)

MVI56E-MNETCR ♦ ControlLogix Platform Ladder Logic

Modbus TCP/IP Multi Client Enhanced Communications Module for Remote Chassis User Manual

ProSoft Technology, Inc. Page 77 of 159

June 14, 2011

3.1.4 Backplane Control Object (MNETCRUTIL)

This data object stores the variables required for the data transfer between the

processor and the MVI56E-MNETCR module. The following table shows the

structure of the object.

Name Data Type Description

LastRead INT Index of last read block

LastWrite INT Index of last write block

BlockIndex INT Computed block offset for data table

ReadDataSizeGet INT Gets ReadData Array Length.

WriteDataSizeGet INT Gets WriteData Array Length.

ReadDataBlkCount INT Holds the value of the Block Counts of the Read Data

Array.

WriteDataBlkCount INT Holds the value of the Block Counts of the Write Data

Array.

RBTSremainder INT Holds remainder calculation value from the read

array.

WBTSremainder INT Holds remainder calculation value from the write

array.

IPgetPending BOOL Allows setting module IP address

IPsetPending BOOL Allows getting module IP address

The LastRead tag stores the latest Read Block ID received from the module. The

LastWrite tag stores the latest Write Block ID to be sent to the module. The Block

Index tag is an intermediate variable used during the block calculation.

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Prosoft-technology MVI56E-MNETCR Uživatelský manuál Strana 77