Prosoft-technology MVI56E-SIE Manual do Utilizador descarregar pdf (Página 106)

Ladder Logic MVI56E-SIE ♦ ControlLogix Platform

User Manual Client Communication Module

Page 106 of 168 ProSoft Technology, Inc.

September 6, 2012

3.2 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.

3.2.1 MVI56E-SIE User-Defined Data Types

Eleven different UDTs are defined for the MVI56E-SIE Add-On Instruction.

The main UDT, SIEMODULEDEF, contains all the data types for the module and

was used to create the main controller tag structure, SIE. There are four UDTs

one level below SIEMODULEDEF. These lower-level UDTs were used to create

the SIE.DATA, SIE.CONTROL, SIE.STATUS, and SIE.UTIL controller tag

structures.

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

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Prosoft-technology MVI56E-SIE Manual do Utilizador Página 106