Automatic implementation of arithmetic operation in reconfigurable logic controllers

Abstract

The paper presents a package of arithmetic operation synthesis dedicated to reconfigurable logic controllers programmed according to IEC1131 and EN61131. The program is compiled to hardware structure with a massive parallel processing. The developed method automatically allocates resources and operations. It controls resource usage and operation timing. Using mixed concept of operation allocation that considers operation timing and forms combinatorial chains of operations number of execution cycles can be reduced. Finally an example of PID controller implementation is considered and compared with previous manual implementations. Introducing the automatic implementation method allows flexible implementing the control algorithms. The maximal possible parallelism (limited only by the algorithm dependencies and available resources) is introduced.