Rockwell-automation Logix5000 Controllers I/O and Tag Data Programming Bedienungsanleitung Seite 29

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Organize tags Chapter 2
Guideline Details
These tags are easier to read Than these tags
Tank_1 TANK_1
Tank1 TANK1
tank_1
tank1
Consider the alphabetical order of tags Logix Designer application displays tags of the same scope in alphabetical order. To make it easier to monitor related
tags, use similar starting characters for tags that you want to keep together.
Starting each tag for a tank with ‘Tank keeps the tags
together.
Otherwise, the tags may end up separated
from each other.
Using extended properties in logic You can access limit extended properties defined on tags using the .@Min and .@Max syntax. However, you cannot
write to extended properties values in logic.
For example, in the Ladder Editor, you can use limit extended properties on an instruction’s source operand.
Rock well Automati on Publication 1756- PM004E -EN-P - October 2014 29
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