→Program

according to →IEC-standard: logical assembly of all the programming language elements and constructs necessary for the inteded signal processing required for the control of a machine or process by a PLC-system

A program is a →program organization unit (such as a →function and a →function block ) which store its states.
Programs can be declared using the following elements:

  • →data types (elementary data types and user-defined data types)

  • functions (system functions and user-defined functions)

  • function blocks (system function blocks and user-defined function blocks)

logi.CAD 3 supports declaration of programs in these languages (according to IEC-standard):