Using Controller Tags MVI69E-MBS ♦ CompactLogix Platform
User Manual Modbus Serial Enhanced Communication Module
Page 76 of 154 ProSoft Technology, Inc.
June 28, 2017
5.1.1 MVI69E-MBS Controller Tags
The main controller tag structure, MBS, is broken down into five lower-level
controller tag structures.
The five lower-level controller tag structures contain other controller tags and
controller tag structures. Click the [+] sign next to any controller tag structure to
expand it and view the next level in the structure.
For example, if you expand the MBS.DATA controller tag structure, you see that
it contains two controller tag arrays, MBS.DATA.ReadData and
MBS.DATA.WriteData, which are 600-element integer arrays by default.
The controller tags in the Add-On Instruction are commented in the DESCRIPTION
column.
Notice that the DATA TYPE column displays the data types used to declare each
controller tag, controller tag array or controller tag structure. Individual controller
tags are declared with basic data types, such as INT and BOOL. Controller tag
arrays are declared with arrays of basic data types. Controller tag structures are
declared with user-defined data types (UDTs).
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