GE90-30PLC与监控计算机实现通信的技术应用

摘要

An introduction was made on the technical application of communication between GE90-30PLC and su⁃pervision/control computer. When a GE90-30PLC equipped with CPU364 fails to communicate with the supervi⁃sion/control computer,the RS-422 serial port of CPU364 may be connected with the RS-232 port of computer. Hardware physical connection combined with programming by VersaPro software will permit the communication.%介绍了GE90-30PLC与监控计算机无法建立联系时，以CPU364型组态的PLC，利用CPU364的RS-422串口与监控计算机的RS-232串口用硬件物理连接，结合VersaPro编程软件实现通信的技术方法。