PML 1 Expressions

This appendix explains the PML 1 expressions package. These facilities are needed within AVEVA products, for example, to define report templates in AVEVA E3D Design.

Note:
Generally, all these facilities are compatible with PML 2.

Expressions have types. For example, you can have numeric expressions, text expressions and logical expressions. All the elements in an expression must be of the correct type. For example, if you have two numbers, x and y, and two text strings text1 and text2, the following expression is meaningless:

However, both of the following expressions are valid:

The following types of expressions are available:

• Logical Expressions

• Logical Array Expressions

• Numeric (Real) Expressions

• Real Arrays

• Text Expressions