基于OPC技术的PLC与LabView通信实现

Realization of Data Communication based on OPC Technology between PLC and LabView

OPC为各种过程控制设备的通信提供了公用接口,论文提出了采用LabVIEW作为上位机监控软件,使其通过OPC接口实现和现场智能设备进行数据通信的方法。阐述了开放式虚拟仪器平台LabVIEW和开放式标准接口技术OPC的特点,介绍了在此平台上LabVIEW的DataSocket编程技术和OPC服务器的设计方法,并通过实验证明这种方法的优越性和可行性。

A method is introduced in this paper to communicate between host-computer and SIEMENS PLC-200 by OPC-based technology on LabVIEW platform.This paper describes the characteristics of LabVIEW and OPC. It focused on the application of OPC servers and the LabVIEW Data Socket technical workstations and the establishment of the PLC data communications between Pc and PLC. The experiment results show that the method is feasible and valuable.