TELKOMNIKA, Vol. 11, No. 6, June 2013, pp. 3427 ~ 3432
e-ISSN: 2087-278X
3427
Received January 20, 2013; Revised April 20, 2013; Accepted April 29, 2013
Design of Instrument Control System Based on
LabVIEW
Jiang Chao*, Xu Wu-bin, Li Bing
School of Mechanical Engineering, Guangxi University of Science and Technology, No. 268, Donghuan
Road, Liuzhou City, Guangxi Prov. China 545006. Telp : (0772)2686058
*Corresponding author, e-mail: Milkymoon@yeah.net
Abstract
In order to solve the problems such as poor expansion, long development cycle of instrument
control system developed by traditional programming language, using VISA module based on LabVIEW
platform was introduced. This paper presented a simplicity, intuitive instrument control system of
pneumatic measuring instrument, which was accomplished with graphical language LabVIEW. The system
could also complete the text data output. It was improved that the system based on LabVIEW achieved
instrument control efficiently, openly, with operating conveniently and good human-machine interface.
Keywords: LabVIEW/VISA, serial communication, instrument control system
Copyright © 2013 Universitas Ahmad Dahlan. All rights reserved.
1. Introduction
Instrument control technology plays a more and more important role in the field of auto
measurement, with the development of computer technology and requirements of the
electronics industry. Instrument control is the process that instruments are controlled by
computer directly through the exchange of commands and data between them. This process is
achieved frequently by textual programming languages in traditional way. But graphical
language LabVIEW bases on dataflow programming. Compared with traditional way, system
developed by LabVIEW more emphasises data processing procedure, and it makes it easier to
write the program, shortens development time, and reduces the difficulty of program design [1].
With a digital sampling and processing system designed with LabVIEW, in this paper, the basal
platform is constituted, and pneumatic measuring instrument is controlled by computer.
2. Methods in Instrument Control based on LabVIEW
Figure 1. Process of Selecting Different Methods based on LabVIEW
Start
Develop instrument
driver?
Application
program’s needs
Have instrument
driver?
Creat similar
driver?
PNP
IVI
Modify existing
driver
Direct I/O
Template-based
driver
Y
N
Y
N
N
Y
Advanced functions
Easy-to-use functions
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