Rockwell Automation Logix5000 Controllers I/O and Tag Data Programming Manual - Manual (Page 49)

Organize tags Chapter 2
The following logic was initially programmed by using descriptive tag names, such
as stop and conveyor_on. Later, the tags were converted to aliases for the
corresponding I/O devices.
• stop is an alias for Local:2:I.Data.1 (the stop button on the operator
panel)
• conveyor_on is an alias for Local:0:O.Data.0 The starter contactor for the
conveyor motor)
Display alias information
Follow these steps to show (in your logic) the tag to which an alias points.
1. On the Menu bar, click Tools > Options.
2. In the Workstation Options dialog box, expand Ladder Editor and then
click Display.
3. Select the Show Tag Alias Information check box.
4. Click OK.
Assign an alias
Follow these steps to assign a tag as an alias tag for another tag.
1. On the Controller Organizer, right-click Controller Tags and then click
Edit Tags.
2. In the Tag Editor window, to the right of the tag name, click the Alias For
cell.
Rock well Automati on Publication 1756- PM004E -EN-P - October 2014 49