Allen-Bradley Logix5000

42 Publication 1756-PM004C-EN-P - October 2009
Chapter 2 Organize Tags
Describe a User-defined
Data Type
RSLogix 5000 programming software lets you automatically build descriptions
out of the descriptions in your user-defined data types. This greatly reduces the
amount of time you have to spend documenting your project.
As you organize your user-defined data types, keep in mind the following
features of RSLogix 5000 software.
RSLogix 5000 software
13.0 or later
Pass through of descriptions – When possible, RSLogix 5000
software looks for an available description for a tag, element, or
member.
• Descriptions in user-defined data types ripple through to the
tags that use that data type.
• Description of an array tag ripples through to the elements
and members of the array.
Paste pass-through description – Use
the data type and array description as a
basis for more specific descriptions.
In this example, Tank became West Tank.
Append description to base tag –
RSLogix 5000 software automatically builds
a description for each member of a tag that
uses a user-defined data type. It starts with
the description of the tag and then adds the
description of the member from the data
type.