Allen-Bradley 1756-L61 ControlLogix 5561 Programming Manual page 81

Data Access Control Chapter 4
1. On the Tag Editor window, right-click a tag and choose Edit (tag name)
Properties.
The Tag Properties dialog box appears.
2. From the Type menu, choose a tag type.
3. Check Constant.
4. Click OK.
See "Constant Checkbox
Rockwell Automation Publication 1756-PM004D-EN-P - September 2012
Availability" on page 81 for considerations.
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