三菱FX PLC 通讯程序，在网络上看到一个，发现很多code丢失，自己重新整理写了一个，简单试验一下还可以-Mitsubishi FX PLC communication program in the network see one, find a lot of code missing, re-organize themselves to write a simple test what can be

插上电缆，在设备管理器看下串口芯片型号，下载对应型号驱动，或者直接用驱动精灵补下缺少的驱动(Plug in the cable, in the device manager to see the serial chip model, download the corresponding model driver, or directly use the driver wizard to fill the missing drive)