@ARTICLE{Szcześniak_Adam_Fast_2022, author={Szcześniak, Adam and Szcześniak, Zbigniew}, volume={vol. 68}, number={No 4}, journal={International Journal of Electronics and Telecommunications}, pages={709-714}, howpublished={online}, year={2022}, publisher={Polish Academy of Sciences Committee of Electronics and Telecommunications}, abstract={The article presents developed method and general principles of creating ladder diagrams, which are commonly used for systems with programmable logic controllers (PLC). Ladder diagrams are created for sequential control systems of technological processes, which are described by a connection pattern, time diagrams of the executive elements` operation. The executive elements are double-acting pneumatic or hydraulic actuators controlled by bistable electrovalves. A method of designing sequential systems enabling the creation of a ladder electro-pneumatic system is presented. The ladder diagram consists of two parts. One is responsible for controlling the valve coils, the other for the implementation of the memory block. The signals that control the transition to the next state are the signals described on the boundaries of the graph division. The synthesis of control systems and their verification was carried out using the computer aided program FluidSim by Festo.}, type={Article}, title={Fast Designing Ladder Diagram of Programmable Logic Controller for a Technological Process}, URL={http://so.czasopisma.pan.pl/Content/125454/PDF/80-105-4003-Szczesniak-sk-new.pdf}, doi={10.24425/ijet.2022.141289}, keywords={synthesis and verification of sequential systems, ladder diagrams, PLC programming}, }