基于LabVIEW和TCP的数据采集系统的开发及应用

来源期刊：冶金自动化2011年第2期

论文作者：张东 施奇峰 王云波

文章页码：36 - 40

关键词：LabVIEW； TCP； 数据采集； 数据分析； PDA

Key words：LabVIEW； TCP； data acquisition； data analysis； PDA

摘    要：在冶金自动化生产线调试及生产过程中,需要对过程数据进行记录以便于故障分析。现有的组态软件可以记录过程数据,但更新周期较长,数据记录不完整;IBA公司的过程数据采集(PDA)系统采集精度高,但价格又较昂贵。因此,中冶京诚工程技术有限公司自主开发了一套数据采集系统CERI PDA,它以LabVIEW为开发平台,通过TCP连接实现PLC与数据采集系统的通信,具有数据采集、数据监视和存储、离线数据分析等功能,能够一次接收多周期信号数据,并可以最小化加载数据文件。该系统先后应用于唐山春兴冷轧薄板厂的冷轧生产线和九江钢铁公司的方坯连铸生产线,取得了良好效果。该系统操作简单,功能实用,成本较低,是进行系统调试和故障分析的有力工具。

Abstract: It is necessary to record process data for fault analysis in metallurgical automated production lines.There are configuration software available on market which are capable of process data recording,however the long updating cycle time of these software packages can not cope with intensive data recording as required in some cases.The PDA(Process Data Acquisition) product of the IBM might be a solution to high accuracy data recording,but it is expensive.Therefore,a data acquisition system,CERI PDA,is developed by Capital Engineering & Research Incorporation Limited on the platform of LabVIEW.The system communicates with PLC by TCP connection and provides the functions of data acquisition,data monitoring and storage and offline data analysis.The data acquisition function of the system is capable of acquiring multi-cycle data in one packet,and the offline analysis function of the system offers minimized loadings of data files to reduce memory overhead.The practical applications of the system in cold-rolled sheet production line of Tangshan Chunxing Cold-rolled Sheet Plant as well as in square billet continuous casting production line of Jiujiang Iron and Steel Company have demonstrated the features of the system as low cost,competent functionalities and easy to operate,and debuted the system as a powerful tool for system commissioning and fault analysis.