Abstract
This topic instructs teacher's scientific research topic, mainly through to branch prestige embedded PLC chip set's research, analysis. Thus knows this embedded PLC chip set's principle and the programming method, through the design corresponding PLC peripheral circuit as well as the embedded driver, completes one to satisfy the specific function embedded PLC. Mainly uses in some general PLC is unable to satisfy the request the special occasion, requests the low cost PLC control with some situation. The practice proved this method realizes the embedded PLC whole is the structure is compact, the movement stable reliable, the overall performance-to-price ratio is prominent, the usability and may once more developmental. Has the very good market introduction value.