TagNum

For an attribute associated with a PI point, get a point's number from the point database.

Syntax

TagNum(s1)

Arguments

• string

  The name of an attribute with a PI point data reference, enclosed in double quotes

Returns

The point's number

Exceptions

If the point does not exist, returns an error value

Example

• TagNum("sinusoid")

  [Returns 1]

• TagNum("cdt158")

  [Returns 3]