可编程序控制器的使用和维护

摘要

The working process and the methods of usage, maintenance and repair for program logic controller switch power are described, which will be a great help to the users of electric apparatus of machine tools and maintenance persons.%叙述可编程序控制器开关电源的工作过程和使用、维护和修理的方法，对机床电器的使用和维修人员具有借鉴作用。