Variables

Define variables for their scope. For instance, global variables are available for use throughout the programs, functions, and functions blocks of a device. Whereas, variables defined for a program, a function, or a function block are local to that element. Define variables in the

Variables

grid of the

Dictionary

. For individual variable scopes, import and export variables data having the Microsoft Excel (*.xls) or comma-separated values (*.csv) format.

Variable names are limited to 32 characters beginning with a letter or single underscore followed by letters, digits, and single underscore characters. Names cannot be reserved words or data types. Names must be unique.