程序主要实现了上位机和三菱plc的通信,使用系统自带的串口控件对三菱plc的位元进行操作TheprogrammainlyrealizesthecommunicationbetweentheuppercomputerandMitsubishiPLC,andusestheserialportcontrolofthesystemtooperatethebitsofMitsubishiPLC