By drilling the first principle of understanding, and then the PLC hardware and software design.
首先通过对钻床工作原理的了解，然后对PLC的硬件和软件进行设计。
Again according to check against the analysis proceeding sieving to the extensive and applied control in now system. Distinguish immediately after to design with the software to the PLC hardware.
再根据对现在广泛应用的控制系统的对照分析进行筛选，接着分别对PLC的硬件和软件进行设计。
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。
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