A Study of Remote Communication and A Study of Remote Communication and Monitoring in Programmable Controller

• Main Authors: Fu Fang-Jie, 宓芳頡
• Other Authors: 陳文耀
• Format: Others
• Language: zh-TW
• Published: 103
• Online Access: http://ndltd.ncl.edu.tw/handle/50374250111030708416

碩士 === 南台科技大學 === 電機工程系 === 102 === From the literature review it showed that the current graphical monitoring program mostly use VB 6 and the object of study focus on small size PLC. In this study we adopt large-scale Mitsubishi Q series PLC as the research object because it was widely used in photovoltaic panels plant. Combined with small FX series PLC, serial communication modules, analog modules, temperature control module and distributed I/O modules as the research platform, under the open control and communication links (CC-LINK) network architecture, through the use of human interface and it's dedicated monitoring software and Visual Basic programming language, we try to design and develop the graphical monitoring technology of PLC. Under the system architecture described above, we perform the following research items: (1) HMI-based graphical monitoring, (2) Q Series PLC's basic communication command tests (3) a temperature regulation combined with inverter, (4) forward and reverse control of AC motor , etc., and get the desired functionality and results. The present results demonstrated that through self-designed VB graphical monitoring programming, under the PLC's dedicated protocols and open CC-Link network architecture, a stable PLC series communication and remote control can be achieved.