【摘要】 提出了一种利用Windows串行通信技术和Modbus通信协议实现一般PC工作站与DCS系统的通信方法 ,并详细介绍了其软件实现方法和通信过程。经实践证明具有通信可靠、投资少的特点。更多还原

【Abstract】 A way using the Windows serial communication technology and the Modbus protocol to connect the PC workstation with the DCS system is putted forward,and how to develop the program and the process of communication is also introduced in details.It has been tested that the method has some traits such as high reliability and low cost.更多还原