Tagnames in expressions

If you use the tagname in a performance equation expression, the tagname is evaluated as that point's value at the current time. For example:

3 + 'sinusoid'

is equal to the value of sinusoid at the current time (see note), plus three. The same value results from the expression:

3 + TagVal('sinusoid', '*')

Note: The exception is when this expression is used in a PE point, the PE point is event-based, and the Location3 attribute is set to one.