基于MODBUS协议的Rockwell控制器与MCGS数据辨识与通信

Data Detecting and Communication of Rockwell Controller and MCGS based on MODBUS Protocol

在热力站供热监控系统中,需要实现MCGS触摸屏与Rockwell控制器的实时通讯与控制。对于供热系统热力子站,采用Rockwell公司Micro 2080实现供热自动控制,并通过MODBUS协议实现与昆仑通态TPC1061Ti触摸屏的通信,实时显示温度、压力和流量等热力参数,并在触摸屏上进行循环泵、补水泵的频率设定和智能阀门阀位设定,通过设定补水泵的启停压力实现系统自动补水功能。

In heat station monitor system, the communication and control between touching screen and Rockwell controller is necessary to realize auto control. For single set system, Micro 2080 PLC is used to implement auto control of the system. MODBUS protocol is utilized to realize the communication between PLC and TPC1061Ti touching screen. Thus the parameters such as temperature, pressure, flow are obtained and displayed. The frequency of cycle pump, water supplement pump and the valve position can be conveniently set on the screen. Starting pressure and stopping pressure of the water supplement pump are set to realize the auto water supplement function.