Using petri nets theory , this thesis carries out lift controller ' s normal running petri net model and function running petri net model . it is successful to use logic fault diagnosis petri net model , which is brought forward by the thesis , into lift controller fault diagnosing 本文运用petri网理论建立了电梯控制系统正常运行故障检测petri网模型及其功能运行故障检测petri网模型；提出逻辑故障诊断petri网模型，并将其运用到电梯控制系统故障诊断中，取得良好效果。
The network integration of elevator controlling system is based ethernet on backbone network , a distributed controlling structure is adopted in the elevator control system and terminal devices are connected with lonworks . the controlling functions are devided into several parts , which are completed by lonworks and plc respectively . the function of lonworks on network , communication and control are fully exerted 电梯控制系统的网络集成是以以太网为主干网，采用lonworks现场控制总线将前端设备联在一起，采用分布式控制结构，将电梯的控制功能分为若干个模块，用神经元芯片和plc分别实现一部分控制功能，充分发挥lonworks现场控制总线的网络、通讯和控制功能。
