单片机制作的PLC逻辑可编程控制器，大家可以下载看看，是个开源项目-Produced single-chip programmable logic controller PLC, you can download to see is a open source project

三菱梯形图转成51单片机HEX文件的软件破解版本V1.9。三菱软件写好梯形图，再运行转换软件，设定好51单片机的输入输出，打开写好的梯形图，转换出的就是hex文件，烧录到51单片机，就可以执行编写的PLC程序 -Mitsubishi ladder HEX file converted into 51 single-chip version of the software crack V1.9. Mitsubishi software written ladder, then run the

开放的plc系统，含软件与硬件，值的下载与参考，很好的。-Open plc system, including software and hardware, download the reference value, very good.

Atmega PLC open source, with modbus function. arduino compatible