ProSoft Technology MVI56E-DNPNET - Manual (Page 30)

Contents MVI56E-DNPNET ♦ ControlLogix Platform
User Manual DNPNET Ethernet Client/Server Communication Module
Page 30 of 140 ProSoft Technology, Inc.
February 13, 2015
All data and control parameters related to the MVI56E-DNPNET are contained in User-
defined Data Types (UDTs). The DNPNETMODULEDEF UDT is the primary, top level data
structure in which all other lower-order data types are grouped and organized. All groups
branch down from this UDT.
To utilize all the features and functions of the module, an instance of each data type is
required. This is accomplished by declaring controller tag variables using these data types in
the Controller Tags Edit Tags dialog box.
Some UDTs hold process or status data (Module Data Objects). This data can be monitored
and manipulated by the application-specific ladder logic program. Other UDTs are used to
store and organize the parameters needed for special functions and control features
(Special Data Objects). These data types will be discussed in more detail in succeeding
topics.
2.3 DNPNET Controller Tags Definitions
2.3.1 DNPNET Controller Tag Overview
Name Description
DNPNET.CONFIG Configuration information
DNPNET.DATA DNPNET input and output data transferred between the processor and
the module
DNPNET.STATUS Status information
DNPNET.CONTROL Governs the data movement between the PLC rack and the module
DNPNET.UTIL Generic tags used for internal ladder processing (DO NOT MODIFY)