Rockwell Automation Logix5000 Controllers I/O and Tag Data Programming Manual - Manual (Page 70)

Chapter 4 Data access control
1. In the Tag Editor select the alias tag, and then on the Logix Designer
application Menu bar, click Search > Go To.
You can also right-click the alias tag and then click Go To.
2. In the Go To dialog box, in the Go to what list, choose Base Tag.
The Go To box displays the target of the alias tag. If there is an alias chain,
all alias tags in this chain appear in the Go to list.
3. In the Go to list, choose a target of the alias tag.
4. Click Go To.
The target is located with a black box around it.
The following table describes the conditions in which the External Access list is
unavailable.
Important: The External Access list is always unavailable for any tag whose data type is Alarm Analog or Alarm
Digital. The external access status is always Read/Write for these data types.
External access availability
70 Rockwell Automation Publication 1756-PM004E-EN-P - October 2014