Description
PLC、CPU等硬件损坏或软件运行出错的概率几乎为零,PLC输入点如不是强电入侵所致,几乎也不会损坏,PLC输出继电器的常开点,若不是外围负载短路或设计不合理,负载电流超出额定范围,触点的寿命也很长。因此,我们查找电气故障点,重点要放在PLC的外围电气元件上,不要总是怀疑PLC硬件或程序有问题
SIEMENS TI PLC OUTPUT BOARD 6ES5-453-7LA11 6ES54537LA11
Siemens Circuit Board 6FX1120-2CA00 __ 6FX1120-2CAOO
Siemens PC CIRCUIT BOARD 6SC6500-0NA04 _6SC 6500-0NA04
SIEMENS Panel Board Kit MBKQJ3 175A complete MBKQJ3175
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