Integrating the conventional relay control, computer control and communication control technologies, programmable logic control (PLC) is designed specially for industrial control.
可编程控制器(PLC)将传统的继电器控制技术、计算机控制技术和通信技术融为一体，专为工业控制而设计。
It is gradually replacing the traditional relay control system.
它正逐步取代传统的继电器控制系统。
The method of transforming the relay control system with PLC was introduced.
介绍了一种用PLC改造继电器控制系统的方法。
To replace the relay control of hydraulic machine to PLC control is introduced.
液压机由继电器控制改为可编程控制器(PLC)控制。
It includes GOT? PLC and other devices. This system replaces traditional relay control system.
它由触摸屏和PLC等元件组成，取代传统的继电接触器控制装置。
Substitutes S7-200 series of PLC for relay control logic, realizes the automatic control for batching.
使用S7-200系列可编程序控制器（PLC）代替原来的继电器控制逻辑，实现了配料的自动控制。
At present, the main control way in automatization field are relay control, microcomputer control and PLC control.
目前，在自动化领域主要的控制方式有继电器控制、微机控制和PLC控制三种。
At present, the main areas in automation control mode has relay control, microcomputer control and PLC control 3 kinds.
目前，在自动化领域主要的控制方式有继电器控制、微机控制和PLC控制三种。
This system is simple, practical and has also reference value to the reformation of relay control system of other machine.
该方案简单实用，且对其它机床继电器接触器控制系统的改造具有一定的参考价值。
PLC control system replacing traditional relay control system of battery moving machines has reached an advanced level of 1990s in the world.
运用PLC控制系统取代焦炉移动机械传统的继电器控制系统具有国际90年代先进水平。
This paper introduces the application of PLC in reconstructing the relay control system and gives I/O distribution diagram and some of programs.
介绍了PLC在继电器控制系统改造中的应用，给出了I/O分配图及部分程序。
The practice shows that LOGO control is simple, reduces electricity fault rate and is worth extended by contrasting LOGO control to direct-current relay control.
运用实践证明：LOGO控制简单方便，减小了电气故障率，值得推广。
The relay control wiring, also known as"secondary wiring", plays an important part in the safely operating, running and maintaining in the power plant and the substation.
发电厂和变电所的继电控制接线，又称为“二次接线”，是发电厂和变电所安全生产、运行维护的重要组成部分。
By using gate control and SCR rectifier circuit instead of relay control system, it makes the unit smaller, cost lower, reliability higher and control function more accurate.
该电路采用晶体管门电路及可控硅代替继电器进行程序控制。具有体积小、成本低、使用稳定可靠、抗干扰能力强、控制精度高等优点。
The original relay control system of industrial washing machine is innovated and replaced by programmable controller, good stability and reliability of the system is achieved.
介绍了利用可编程控制器对继电器控制式工业洗衣机进行改造的过程，实现了系统的高稳定性和可靠性。
The reliability lab ship fuel oil donkey boiler controlled by relay control system is evaluated using counting method, and mean time to failure (MTTF) of the control circuit is educed.
对采用继电器控制系统进行控制的某实验室船舶燃油辅助锅炉，采用计数法进行可靠性评估，得出控制电路的平均无故障时间。
The drainage system in Qingxi Hydropower Plant originally adopted conventional relay control for its pump control system, which had many hidden troubles and resulted in multiple failures.
青溪水电厂排水系统的水泵控制系统原设计采用旧式常规电动机控制系统，投入运行后多次出现故障，存在许多安全隐患。
PLC or Relay control with optional operation of manual and semi-auto.
有电脑、继电器两种控制方式，设有手动、半自动两种操作方式。
PLC or Relay control with optional operation of manual and semi-auto.
有电脑、继电器两种控制方式，设有手动、半自动两种操作方式。
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