基于MDT单片机的Modbus远程控制器设计

Design of Modbus remote controller based on MDT MCU

针对节能监管系统数据采集网关对现场设备控制能力有限的问题,设计基于MDT单片机的Modbus远程控制器,实现了采集网关对现场设备的协作控制,以提高节能监管系统的监控效果。远程控制器以MDT单片机为核心,整合了Modbus通信协议,并通过RS485总线与数据采集网关的下行RS485主机接口互联,实现对现场控制量的监测和控制。通过实践验证,远程控制器能够可靠地实现状态量的采集和切换控制,工作稳定可靠。

Aiming at a Modus remote controller based on MDT MCU was designed to solve the prob- lem that the data acquisition gateway of the energy supervision system had limited ability to control the field equipment. The controller realized the gateway＇ s cooperative control of the field equipment, thus improving the monitoring effect of the energy supervision system; it integrated the Modbus communication protocol with the MDT MCU as the core, and realized the monitoring and control of the field control variables by the interconnection of the RS485 bus and the interface of the downlink RS485 host computer. Engineering practice verifies that the remote controller can realize reliable and stable acquisition and switching control of the state variables in the field control and monitoring.