R911279141 REXROTH

MVME162-023A Motorola
MVME162-032 Motorola
MVME162-10 Motorola
MVME162-13 Motorola
MVME162-512 Motorola
MVME162-512A Motorola
MVME162-522A Motorola
MVME162-522A 01-W3960B/61C Motorola
CPCI-6020TM Motorola

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描述

传统的继电器控制系统中使用了大量的中间继电器、时间继电器。由于触点接触不良,容易出现故障。PLC用软件代替大量的中间继电器和时间继电器,仅剩下与输入和输出有关的少量硬件元件,接线可减少到继电器控制系统的十分之一到百分之一,因触点接触不良造成的故障大为减少。

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