基于LabVIEW 7 Eexpress的数据采集系统  

Data Acquisition System Based on LabVIEW 7 Eexpress

作　　者：王颖[1] 程明[1] 周伟[1] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070

出　　处：《兵工自动化》2004年第4期68-69,共2页Ordnance Industry Automation

摘　　要：基于LabVIEW 7 Eexpress的数据采集系统由主控机界面和FCS2000-PLC数据采集模块组成,用于火车闸片测试台。主从机使用ModBus串行通信协议,单独广播通信方式。程序分为参数设定、监听、数据处理等三个子模块。通过定义主从机读操作的两次握手命令-应答帧格式及其参数改写子VI实现数据采集。The data acquisition system based on LabVIEW 7 Eexpress is composed of the interface of the main control machine and FCS2000-PLC data acquisition module, and it is used in the testing platform system of train braking. ModBus serial communication protocol and broadcast communication was used in this system. The whole program is fallen into parameter setting, monitor and data manage modules. Data acquisition was realized by defined two times of handshake order or response frame format and VI of read-write operation between host and slave computers.

关 键 词：LABVIEW 7 Eexpress FCS2000-PLC 数据采集 串口通信 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TN915.04[自动化与计算机技术—控制科学与工程]