The specification of programmable controller, PLC hardware configuration, software design, programmer, operation mode and furnace purging flame detection and it principle are presented concretely.
具体介绍了可编程序控制器性能指标，PLC硬件配置，软件设计，编程器，操作方式以及炉膛吹扫，火焰检测及火检原理等。
It is characterized that the upper process computer is used as the programmer of PLC in system design.
利用上位机作为可编程序控制器的编程器是本系统设计的一个特点。
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