Module Definition Versus Module Configuration - Allen-Bradley 1444-TSCX02-02RB User Manual

Module Definition Versus Module Configuration

In the Logix environment there are two steps to configure a new device:
• Define the instance of the specific connected device
• Configure the device
Module Definition
Module Definition is performed by using the various dialogs that are accessed
through the General Page Change button.
At minimum, the attributes that are defined in Module Definition include any
that affect the structure of the configuration, input, or output assemblies. The
Add-on Profile (AOP) constructs these assemblies when the Module
Definition is applied.
The 1444 series controller input assembly can be as simple as one measurement
from each of four DC channels, or as sophisticated as over 100 values that are
measured from dynamic signals. In either case, in Module Definition, specific
measures must be selected to include in the input assembly. To simplify the
selection and to minimize errors further along in configuration, Module
Definition then includes additional dependent attributes. These attributes are
used to filter the selection of the input assembly attributes based on the
application and the types of inputs to each channel.
Other attributes that are controlled in Module Definition include specification
of connected expansion modules, which define the complete hardware
available for configuration. Also, other high-level attributes that are not
expected to be edited once the device is initially defined are controlled in
Module Definition.
IMPORTANT • When Module Definition is applied, the AOP creates instances of the
Configuration, Input, and Output assemblies. After editing an existing
Module Definition, the AOP resets only configuration parameters that
have a dependency on a changed Module Definition parameter.
• For example, if a Channel Input Type is changed then only the parameters
that are associated with the changed channel are set to their default
values. If you change an existing Module Definition, thoroughly review
the configuration.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Configure the 1444 Dynamic Measurement Module Chapter 3
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