Rockwell Automation Publication 5069-UM002A-EN-P - January 2019 189
Develop Control Applications Chapter 8
Parameters and Local Tags
With a Logix 5000 controller, you use a tag (alphanumeric name) to address
data (variables). In Logix 5000 controllers, there is no fixed, numeric format.
The tag name identifies the data and lets you do the following:
• Organize your data to mirror your machinery.
• Document your application as you develop it.
This example shows data tags that are created within the scope of the Main
Program of the controller.
Figure 36 - Tags Example
There are several guidelines for how to create and configure parameters and
local tags for optimal task and program execution. For more information, see
the Logix 5000 Controllers and I/O Tag Data Programming Manual,
publication
1756-PM004.
Controller Organizer —Main Program Parameters and Local Tags
Program Tags Window—Main Program Parameters and Local Tags
Digital I/O Device
Analog I/O Device
Integer Value
Storage Bit
Counter
Timer
Logical Organizer —Main Program Parameters and Local Tags
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