描述
PLC的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。
Lennox LSS-40 Rectangle Steel Face Black LSS-PT40B New
Lennox LSS-40 Arched Steel Face Black LSS-PA40B New
DeLaRue 2800 Series Main Control PCB D603188
Haug EN-C Static Power Supply 01.7810.00 New
Illumination Technologies Lightlines Linear Illuminatio
