描述
一般来说,PLC是极其可靠的设备,出故障率很低。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。
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e3
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e4
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e2
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL d2
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL d3
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL d4