Application of the Visual Basic Program in

• Main Authors: Der-Shine Lu, 盧德興
• Other Authors: Ming-Guo Her
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/14666228768445261617

碩士 === 大同大學 === 機械工程研究所 === 91 === This thesis is investigated the data of the instrument equipment control system delivered to remote supervisor via Ethernet network. The communication connects of the instrument equipment and remote supervisor computer system is utilized serial port RS-232 and TCP/IP port Internet device which designed with the graphical control software. The network between of the supervisor and the equipment apply the server-client type network construment. In the remote supervisor system, the controller provided the digital input and output module connected by way of the serial port RS-232 interface device. In the meanwhile, the communication of the computer and controller employed the Internet network construment can cost down the expenditure. And the computer link up with the equipment adopt Polling method to drive the work completely via graphic human machine interface, therefore, the sample time of the measuring the data from the sensor by the operator in the plant.