RTU与MCGS之间Modbus通信两系统硬件设置、软件组态以及调试方面作了较为详细的介绍。该系统已投入运行后，稳定可靠，具有良好的应用和推广价值。(RTU and MCGS Modbus communication between the two system hardware settings, software configuration and debugging made a more detailed descr iption. The system has been put into operation, stable and reliable, with good application and promotion value.)