Computer aided design of pneumatic control circuits

Automation problems concerning the sequencing of successive events canmost simply be obtained by appropriately designed pneumatic control circuits. Thesepneumatic systems are called Cascade systems. Although the design of these systemsis well known and documented, doing it free hand may be quite difficult andlaborious especially for complicated sequences. Contrary to computer or PLCcontrol, solid logic is more reliable, easier to implement and maintain, and ischeaper. In this study, the design procedure, which is always given in verbal form, isconverted into an algorithm first and a computer program written in Borland Delphi7.0. Output of the computer program is in form of a circuit diagram comprising ofISO standard pneumatic symbols and color coded pipelines. The program is userfriendly, easy to use and fast.Key Words: Pneumatic circuits, Pneumatic control, Cascade systems.i