Programmable Logic Controllers (PLCs) have been widely used in industry.

可编程逻辑控制器(的PLC)已广泛应用于工业。

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Rotary encoders convert a mechanical input into electrical signals, which can be processed by counters, tachometers, programmable logic controllers and industrial PCs.

旋转编码器转换成机械和工业PC输入成电子信号，控制器可处理的计数器，转速表，可编程逻辑。

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In the application of above 24V fort current voltage grade control circuit, Voltage Alternating and resonant wave interference of input model for Programmable Logic Controllers must be resolved.

可编程控制器在高于24V的直流电压等级控制回路中应用时需解决输入模块的电压变换和谐波干扰等问题。

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In the late 1960s Allen-Bradley bought a small outfit that made programmable logic controllers--custom minicomputers.

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U.S. and Asian demand, he says, was broad-based, with particularly solid growth for analog chips, embedded controllers and programmable logic devices.

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