Modbus转Profibus-DP网关在DCS与PLC通信中的应用

Application of Modbus to Profibus-DP Gateway in Communication between DCS and PLC

结合中金岭南离心雾化控制系统项目,就横河CENTUM VP型DCS集散控制系统与螺杆空压机之间因通信协议不一致导致无法通信的问题,介绍了通过Modbus转Profibus-DP网关实现Modbus和Profibus-DP协议设备之间的相互通信的方法。实践证明,该方案实现了在上位机集中监控螺杆空压机的实时状况,且运行稳定可靠,成本低。

Combining with zhongjin lingnan centrifugal atomization control system project,yokogawa CENTUM VP type of DCS collecting and distributing control system and communication protocol between the screw air compressor inconsistent lead to communication problems,introduces how to implement the Modbus profibus-dp through the Modbus gateway and profibus-dp protocol communication between equipment,so as to realize centralized monitoring in the upper machine screw air compressor,real-time status.