Application of siemens S7 - 200 series PLC on full-automatic dishwasher

According to the survey, 80% of China´s population is currently busy working relationship because, more often choose the canteen, there are a considerable number of students in school meals in the study phase is also the canteen, so how effective the canteen clean dish became an important issue. The device based on Siemens S7-200 series PLC programmable controller, electric control of full-automatic dishwasher is designed and realized. This paper describes the hardware and software design of the system in detail, on-site application results demonstrate it is reliable and can be easily operated, while has a good performance and prospect of popularization.