The Research On Record Of Real Time Datas And Parameter Display Module For Excitation System

With the perfecting of fieldbus technology and the rapid development of computer andautomatics,the control of excitation system has a trend of distributed fieldbus.The module of realtime datas record and parameter display on the control of excitation system is the research objectof the article.It is the keywoad link of distributed control and concentrated information,and is thebridge between scene and master-control room.16-bit MCU HCS12X of Freescale Company is adopted as the core of unit.It has thefunctions of display of scene datas,convenient parameter modify and the wave record offailing.Through the CAN bus which has the character of the high rate and low errer rate,the scenedatas have transmitted into the MCU.Then by the judgment and process of MCU, the scene dataseither display on the LCD,or store and infor to the PC.Users can modify parameter at any timewith the eight keypresses and friendly HMI.The using of FRAM and MRAM enlarge the capacityof the system,and make the record wave of faiking success.Applying of the RTC and PITmodules which have the fuction of millisecond time perfect the wave record of faiking.With the help of the CodeWarriorIDE of Metrowerks Company and P&E's USBHCS08/HCS12 MULTILIN,we have completed the most software compile and debug after thecompletion of hardware design and debug.All these validate the whole design's feasibility andlay the foundation for further product's design.