ProSoft Technology MVI56E-MNETCR - Manual (Page 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.