Program solutions for the complex cooling process via LADDER logic

This paper describes designing complex process control in a cooling system. Control solutions specifically designed for simple cooling system are already available and these simple control designs include temperature control limited to one cycle of operation. For more complex cooling processes with variable operation cycles it is necessary to introduce a superior process control design, which coordinates the operations of simple processes. Within each cycle temperature is controlled by temperature regulator, while cycle operation exchange of individual processes is managed by microprocessor device whose program was written in LADDER logic in this study.