User-defined data type – Rockwell Automation Logix5000 Logix5000 Controllers Quick Start User Manual
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Publication 1756-QS001E-EN-P - October 2009
Chapter 6 Document a Project
User-defined Data Type
RSLogix 5000 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:
Item
Description
A
Pass through of descriptions are automatically created 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.
B
Append descriptions to base tags. 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.
C
Edit pass-through descriptions so that you can use the data type and array description as a
basis for more specific descriptions.
In this example, Tank became West Tank.
A
C
B