可编程控制器的输入输出保护

Protection of the input and output in proammable logic controller

针对可编程控制器输入单元所连接的设备性质不同、输出形式不同、输出驱动的负载类型不同,提出应采用适当的硬件保护,以保证可编程控制器系统的高可靠性。

According to the different of equipment character linked by input, output form and load kinds droven by output in proammable logic controller, the proper hardware protections are brought forward in order to ensure the reliability of the system of proammable logic controller.