变化
近几年PLC技术的大力发展尽管还没有一家厂商可以高调的说自已代表了国内的PLC行业，但这个全民的开发过程使PLC技术深入到了一大批的研发工程师脑海里，很多工程师开始采用PLC技术去实现未PLC的产品。也就是说很多专用控制器也开始采用PLC技术，将PLC可编程的灵活与专用控制器的结合在一块这在未来几年会派生出相当多的类似产品。
我们也在这一方面开发了一些类似的产品，我个人比较想把仪表做为PLC技术内嵌的一个方向。
上面的四条路分别代表了当今PLC厂家的四个方向，如果说谁一定能成功，谁一定会失败，我不好乱下结论，但我更希望是自主研发的厂家更多一些，只有这条路艰辛漫长，但也只有这条路是可以选择的方向多，可以坚持的时间长的。
这一阵子和很多做市场的朋友谈话，原来的一个合作伙伴给我讲了讲长尾理论，我觉得深合PLC行业的发展要求。
根据长尾理论，在网络时代和信息爆炸的现代社会，并不是只有名能赚钱，第二名能存活，而是会有一条长长的尾巴，在第三名到百名都将存活并还能得到利润。这是因为现在的宣传方式和营销方式使小公司也可以有声音发出来，而客户的个性化和行业的更加化会需要更多的厂商来提供服务和产品。
PLC行业是一个细分特别多的行业，至今我们已做了近百个行业的设备控制了，但我仍不能找到一条能把这近百个行业归纳起来的简单方法，每个行业每种设备都有其独特的工艺和控制要求，更多的PLC厂商会更加深入的接触行业，而不像前两年一样，大家都想把PLC放在超市里面卖。
PLC不能当产品简单卖，而要当成一个工具来卖，卖给用户后，用户要进行二次开发后才能成为产品，也就是说你要教会你的用户使用这个工具。所以教育你的客户使用，这成了PLC销售大的难题，当然如果你的产品与西门子或者三菱完全兼容这个难题就可以回避开了。
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