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传统的DCS可以用“集中管理、分散控制”来概括,而目前流行的DCS已经超越了这个范围,其控制站还具备通讯功能用以连接支持各种标准协议的智能设备,基于Modbus RTU协议的JX-300XP DCS作为主站可与S7-200 PLC、网络电力仪表实现无缝连接;同时还作为从站也基于Modbus RTU协议被动接收燃气调压站RTU广播数据;最终实现DCS系统与S7-200 PLC、网络电力仪表及燃气调压站RTU三者的互联互通,实现燃气锅炉系统的全方位监视及控制,运行效果良好,并由此展望未来DCS系统的发展方向。
Traditional DCS can be summarized by “centralized management, decentralized control ”, and the popular DCS has gone beyond this range. The control station also has the communication function to connect intelligent devices that support various standard protocols. Based on Modbus RTU Agreement JX-300XP DCS as a master station can be seamlessly connected with the S7-200 PLC, network power meter; at the same time as a slave is also based on the Modbus RTU protocol passive reception gas station RTU broadcast data; the final realization of DCS systems and S7 -200 PLC, Network Power Meter and Gas Regulator RTU interoperability between the three to achieve a full range of gas-fired boiler system monitoring and control, running well, and thus look forward to the future development of the DCS system.