Research And Implementation Of FCS-Based Data Communication Technology

Communication technology is the key technology to the domain of the industry control, is a quickly developing technology. At present, in order to propel the change from DCS to PCS, many researchers are devoting themselves to the study of communication technology in the domain of industry control. Our research targets are as follows: develop FCS-based communication software follow Foundation Fieldbus protocol; promote the development and application of Fieldbus technology; provide a new thinking to upgrade the DCS communication into the FCS communication. Our research includes the following aspects:(1) Discuss the system structure of FCS, especially detailed introduce the understanding and application of FCS-based communication networks system structure;(2) After fully understood 1EEE802.4 token bus protocol standards, we did a deep research on how to use token transmission in RS-485 serial communication bus;(3) Establish a FCS-based communication network, implement the data communication based on FF;(4) Use object-oriented programming tools Delphi, Visual Basic and so on to develop the system software. In order to increase the system's respond capacity we established real-time database in the RAM;(5) Solve the data security problem by fulfilling the data fault-tolerant technology of FF communication protocol;(6) Test the system's software and hardware.The system has been tested in the laboratory. According to the fact, all functions predefined have been basically completed.