15-777-2111

一般各型PLC均设计成长期不间断的工作制。但是，偶然有的地方也需要对动作进行修改，迅速找到这个场所并修改它们是很重要的。修改发生在PLC以外的动作需要许多时间。查找故障的设备SRPLC的指示灯及机内设备，有益于对PLC整个控制系统查找故障。编程器是主要的诊断工具，他能方便地插到PLC上面。

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freyhardt relais FVR
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