可用来破解分析西门子200 PLC与模块的通讯协议，基于ALTERA CPLD EPM240的设计. 需要配合分析板配套使用。-Analysis can be used to crack the Siemens 200 PLC and the communication protocol modules, based on the ALTERA CPLD EPM240 design. The need to tie in with the analysis supporting the

西门子的流水灯 实测ok 重在方法 移位指令实现的-Siemens water lights measured ok focuses on the shift instruction

利用cpld实现交通灯的控制时序，实现软件microwin使用梯形图编译成功，并在西门子S7-200PLD成功运行。 -Cpld control the timing of traffic lights, the software microwin compiler, and run successfully in Siemens mc200PLD,