9.1.1   Characters used in a Tag Name

A Tag Name can include the alphanumeric characters:

A - Z
0 - 9
- (dash)
and  _ underscore.

For example, U2_FIC-109a is a legal tagname.

Note -     Underscore should NOT be used in a Project Name. WebAccess uses the Underscore as a delimiter in files requiring identification of both Project Name and SCADA Node (for example, Project1_Node1.