Development Of A Network-Oriented Platform For Embedded PLC

Programmable logic controller(PLC) is a kind of automation device with microprocessor and memorizer as its control center, which plays a more and more important role in the field of industry. The embedded PLC can be easily used by user and flexibly customized according to user's requirements, so it has been widely used in recent years. Therefore, developing an integrated platform for the embedded PLC will enlarge the use of embedded PLC in the area of industrial control, improve production efficiency and promote the development of domestic PLC technology.After introducing the origin of this paper and the significance of developing the integrated platform, this paper firstly gives a review of the network control system, PLC programming platform and programming language. Then, we gain the main task and logic model of the software by analyzing the system architecture, proposing the design scheme of the platform in accordance with software engineering. Following, we expatiate on the design and implementation of the programming environment of the platform, including the user interface, editor, language conversion module and syntax check module; explain the realization of the network environment, including the development and management of network node's interface driver and the realization of network configuration. In the end, we test the system main functions including the conversion of LD/IL language and the network configuration. The experimental results prove that the design of the network-oriented embedded PLC integration platform is reasonable.A summary is given at the end of the thesis, and researches to be further improved are discussed.