ProSoft Technology MVI56E-SIE - Manual (Page 112)

Ladder Logic MVI56E-SIE ♦ ControlLogix Platform
User Manual Client Communication Module
Page 112 of 168 ProSoft Technology, Inc.
September 6, 2012
3.4.4 SIE.UTIL
This controller tag structure stores the variables required for the data transfer
between the processor and the MVI56E-SIE module.
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
StatusIndex INT Computed block offset for status data
ReadDataSizeGet INT Gets ReadData array length
WriteDataSizeGet INT Gets WriteData array length
ReadDataBlkCount INT Holds the value of the block counts of the
ReadData array
WriteDataBlkCount INT Holds the value of the block counts of the
WriteData array
RBTSremainder INT Holds remainder calculation value from the
read array
WBTSremainder INT Holds remainder calculation value from the
write array
IPsetPending BOOL Allows setting module IP address
IPgetPending BOOL Allows getting module IP address
InitOutputData SIEINITOUTDATA Used to bring the module into a known state
after a restart operation
CheckInitialization BOOL Check initialization trigger
StatusSeqIndex INT Index of Status Sequence
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
BlockIndex tag is an intermediate variable used during the block calculation.