Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 84)

4–4

RSView32 User’s Guide
Naming tags
Tag names can be up to 255 characters long. If you create a folder, the
folder name becomes part of the tag name.
The tag name can contain the following characters:
A to Z
0 to 9
underscore (_) and dash (-)
The tag name can be mixed case. Tag names preserve upper and lower
case for readability but are not case sensitive. For example, the tag
name MixerValve1 is the same as mixervalve1.
When a tag name starts with a number or contains a dash, enclose the
name in braces { } when you use it in an expression, for example,
{N33–0}. Also use braces when using wildcards to represent multiple
tags in an expression, for example, {alarm*}. For more information
about using tags in expressions see Chapter 14, Creating expressions.
Using folders to group tags
To organize tags, create a folder and include tags that are related to
one another. To separate the folder name from the rest of the tag
name, use a backslash (\). For example, tags in the folder called Pump
would start with Pump\. For greater organization, you can nest
folders. For example, you can organize the tag database first by area,
then by machines in the area, and finally by devices in each machine.
The result might be Area1\Machine1\Pump.