This paper combining with the specific example of control system of petroleum drilling equipment,the design idea and means of system integration is generalized utilizing the SIMATIC 300抯 CPU. The system is programmed and debugged by the 揝TEP 7?sofeware;the ProTool/Pro RT,which let your project run on the operating unit and visualize the process;with WINCC,we can accomplish data accessing、history archiving&report printing.The system have the function of redundant backup and remote maintenance. 关键词(Keywords) 数据采集 历史归档 冗余备份 远程监控 Data acquisition History archive Redundant backup Remote maintenance