MODBUS协议下智能仪表与微机串行通信

Serial Communication Based on the Modbus Between Intelligent Instrument and Microcomputer

文中介绍了以智能仪表(Honeywell UDC3300)作为控制器的温度控制系统的构成和串行通信方法。着重说明利用 VB 中 MScomm 控件实现的通信软件设计。

In this paper,a structure of the temperature control system is introduced,whose controller is the intelligent instru- ment(Honeywell UDC3300),and a means of serial communication.It emphasized the communication software design by MScomm control of VB.