| Summary: | 碩士 === 中原大學 === 電機工程研究所 === 98 === In recent years because of the rapid development of network communication technology, and a network control system has advantages of cost reduction, ease of expansion and maintenance, so the traditional point-to-point control has been gradually replaced by network control system. And network real time monitoring has been evolved into the new trend of industrial automatic monitoring.
As the network technology progress and the rise of Web-based teaching, although there are many topics of study on network monitoring, they are still limited at the host state or data buffer value of read, write, or control between PC and PLC contact. Since the PLC itself does not provide network functionality, therefore now adapter card can be installed or communication interface can be increased to achieve network control function. Its control is only restricted at the PLC built-in single device contacts. In the premise of control, the program provided by manufacturer is required to edit the software to write PLC program into the host.
This article shows by means of PLC communication code side recorded resolution, high-order VB 2008 programming language is used to develop a set of human-machine interface of which function could simulate vendor’s program editing software environment and write into the given host PLC. This article describes how to implement the remote operation of PLC, and further describes the remote operating system as a platform in the future, so that develops Web-based teaching system functionality.
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