【摘要】 介绍了以SIEMENSSTEP7系列PLC为核心的提升设备监控系统，通过计算机对实际运行状态进行监控，并设计了人机界面、主并及调度室互联网，建立了运行状态数据库。调度室能在线、自动地记录和查询故障，监控系统能自动地进行安全保护。更多还原

【Abstract】 This paper introduced the monitoring system for shaft hoists, the core of which is PLC of SIEMENS STEP7 SERIES. With the help of the computec the actual running condition was monitored and man-computer interface and inlernet of man-ore shaft and dispatching room designed,and the running data-base built. The trouble can be recorded and inquired automatically on line. The system can carry out sa fty protection automatically.更多还原