介绍了可编程序控制器（PLC）的功能和特点，着重阐述了具有强大逻辑、算术控制功能的PLC在小型货物提升机控制系统中的应用。
The characteristic of PLC is introduced and the application of PLC with mightiness logic and number function in hoist control system underground small cargo hoist is emphasized.
介绍超小型可编程控制器(plc)在循环冷却水系统应用中数字逻辑的程序设计方法。
To introduce digital logic program designing method of microminiature PLC application to circular cooling water system.
介绍了中小型自动控制系统(R15 0系统)的配置，由控制器、逻辑控制器及监控站组成。
The configuration of medium and small size automatic control system R150 is described. It is composed of controller, logical controller and monitoring station.
介绍了中小型自动控制系统(R15 0系统)的配置，由控制器、逻辑控制器及监控站组成。
The configuration of medium and small size automatic control system R150 is described. It is composed of controller, logical controller and monitoring station.
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