This chapter discusses the application of IEC 1131-3 to industrial control problems. The design can be constructed to run on different PLC processing resources. The use of programs and function blocks to construct a hierarchical top-down design. The development of re-usable function blocks that can be applied to solve the same problem many times within the same system.

Inspec keywords: industrial control; programmable controllers; programming languages; IEC standards

Other keywords: programs block; PLC; function block; programming industrial control system

Subjects: Control engineering computing