→Function block type

according to →IEC-standard: language element consisting of:

• the definition of a data structure partitioned into input, output, and internal →variables; and

• a set of operations or a set of →methods to be performed upon the elements of the data structure when an →instance of the function block type is called

Compare →function block

In ST, a function block type may be specified as type for a local →variable (= declaration of a function block instance), an →input variable , an →output variable , an →in-out variable or a s tructure element of a →structured data type .