基于Modbus RTU协议的燃气锅炉监控系统  

DCS control system of gas boiler based on Modbus RTU protocol

作　　者：张庆国[1] 林明[2] 

机构地区：[1]天津工业自动化仪表研究所有限公司,天津300060 [2]天津市河北区供热燃气公司,天津300240

出　　处：《仪器仪表用户》2013年第5期61-63,共3页Instrumentation

摘　　要：在燃气锅炉监控系统中,DCS作为主站基于Modbus RTU协议,通过RS485总线与西门子S7-200 PLC、网络电力仪表ACR320E实现无缝连接,读取锅炉本体参数。DCS还作为从站基于Modbus RTU协议、以RS485总线方式与燃气调压站RTU通讯连接,被动接收燃气系统参数。DCS与S7-200 PLC、网络电力仪表ACR320E及燃气调压站RTU三者的互联,实现了燃气锅炉系统的全方位动态监控,运行效果良好。In the control system of gas boiler,as a master station,DCS reads the boiler＇s parameter,achieves the seamless connection with Siemens $7-200 PLC and network power meter ACR320E by Modbus RTU protocol and RS485.1n the other hand,being the slave station,DCS communicates with the gas regulator station＇s RTU by Modbus RTU and RS485,and receives gas system data passively.The network of DCS, S7-200 PLC,network power meters and gas regulator station＇s RTU ACR320E realizes the general and dynamic monitoring of gas boiler system,and has reliable operation status.

关 键 词：DCS S7-200 PLC 网络电力仪表ACR320E MODBUS RTU协议 监控 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]