We may make use of the programmable logic controller to carry out fuel tank temperature signal collect,programme and control in the system of hydraulic pressure.We contrapose multifarious temperature sensor to debate the programme mode and software process of the control system,carry out the control of fuel tank temperature,alarm and the protective function of tube and valve.%利用可编程控制器实现液压系统油箱油温信号的采集、编程及控制,并对不同类型的温度传感器输入信号所采用的编程方式及软件流程进行讨论,实现了油箱温度的控制、报警及整个液压系统管路及阀件的保护功能.
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