Scope Prefix

Overview

The scope prefix indicates the scope of variables and constants. It indicates whether it is a local or global variable, or a constant.

Global variables are indicated by a capital G_ and a property prefix c is added to global constants (followed by an underscore in each case).

NOTE: Additionally identify the global variables and constants of libraries with the namespace of the library.

Example

VAR_GLOBAL CONSTANT
    Gc_dwExample : DWORD := 16#0000001A;
END_VAR

Access to the global variable of a library with the namespace INF:

INF.G_dwExample := 16#0000001A;