Maximum Field Length

256 characters


An expression containing point identifiers, constants, and either arithmetic or logical operators. The expression may be up to 78 characters in length.

Note: If another Point ID is used in the expression, it must be in the recognized format, or else the Point ID must be enclosed in single quotation marks – for example, '1 - this is a point_id'. The recognized format is an alphabetic first character followed by alphanumeric characters and/or an underscore. If a Point ID contains embedded blanks or non-alphanumeric characters (other than underscore) or does not begin with a letter, its format is not standard.

More information

POINT_TYPE field definitions.