Prosoft-technology MVI69L-MBS Manuel d'utilisateur télécharger pdf (Page 80)

Using Controller Tags MVI69L-MBS ♦ CompactLogix Platform

User Manual Communication Module

Page 80 of 154 ProSoft Technology, Inc.

January 6, 2014

5.2 User-Defined Data Types (UDTs)

User-defined data types (UDTs) allow users to organize collections of data types

into groupings. These groupings, or data type structures, can then be used to

declare the data types for controller tag structures. Another advantage of defining

a UDT is that it may be re-used in other controller tag structures that use the

same data types.

The Add-On Instruction Import Rung ladder logic for the module has pre-defined

UDTs. You can find them in the User-Defined subfolder, located in the Data

Types folder in the Controller Organizer pane of the main RSLogix window. Like

the controller tags, the UDTs are organized in a multiple-level tree structure.

5.2.1 MVI69L-MBS User-Defined Data Types

Twenty different UDTs are defined for the MVI69L-MBS Add-On Instruction.

The main UDT, MBSMODULEDEF, contains all the data types for the module

and was used to create the main controller tag structure, MBS. There are five

UDTs one level below MBSMODULEDEF. These lower-level UDTs were used to

create the MBS.CONFIG, MBS.DATA, MBS.CONTROL, MBS.STATUS, and

MBS.UTIL controller tag structures.

Click the [+] signs to expand the UDT structures and view lower-level UDTs.

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Prosoft-technology MVI69L-MBS Manuel d'utilisateur Page 80