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MVI69E-MBS ♦ CompactLogix™ Platform
Using Controller Tags
Modbus Serial Enhanced Communication Module
User Manual
ProSoft Technology, Inc.
Page 55 of 159
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
D
ESCRIPTION
column.
Notice that the
D
ATA
T
YPE
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).