The design of a new-type PLC based on IEC61131-3

According to some key technical problems of hardware and software design of PLC, we developed a new type of PLC. This type of PLC is in low cost and with a good performance. At the same time, we developed an integrated development environment (IDE) for the PLC. We used C8051F, which comes from Cygnal Company when we designed our PLC. C8051F is a high-speed 8051-compatible micro-controller. And it is integrated with enough interfaces. This character of C8051F simplified the hardware structure of PLC. And, our IDE is based on the PLC programming language standard IEC6113-3, supporting multi-language and graphic drive.