Symbol

A symbol is a type for describing variables of a Beckhoff controller. If variables are read from a controller using the Symbol Explorer, information such as name, type, size, subvariables and many other parameters are merged into one variable. A symbol is then formed from this quantity of parameters.

Symbol types

A symbol can describe different types of variables.

Complex symbols describe variables that can consist of function blocks, arrays and structures.

Primitive symbols describe variables that can consist of basic types, INT, REAL, BOOL, etc.