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Networked control system is new hot-topic in control engineering. To solve the control problem of distributed industry environment with large scale and real time requirement, the networked control system wherein the control loops were closed through a real-time network was proposed. Based on the networked control systems, a new delayed state variable model for the system with multiple delays was presented. Considering the model uncertainty and fault, a sufficient condition on the existing of fault tolerant controller was proved. A method of designing the controller was also given. Simulation results proved that the controller could robustly preserve the performance in terms of network delays, model uncertainty and network fault.