8 PLC销售的技术含量高：中国缺少能销售PLC的合格市场人员,没有丰富的现场和设备经验的销售人员是很难说服客户的工程师接受一个新品牌的PLC。
9客户自主能力弱：中国的机械设备以模仿为主,很少自主研发的设备,很多设备厂商对自动化的自主能力很弱,一般不敢轻易动自动化这一块,一般该设备的原型机用什么PLC那么设备厂都会保留下来。
10国货低价低质观念：是人都知道进口的比国产的好,那怕是朝鲜生产的估计都比国产的好卖,崇洋媚外的思想给国产PLC很大的心理压力,做太好吧,成本高国人不高兴,
那么是否国产PLC真如此之悲愤呢，我不这样认为，随着研发的日益深入，随着队伍的日益壮大，对于PLC，对于设备对于自动化行业我有了更多的理解和更多的从容。
PLC国产与否的意义不在于是不是拥有这几十个亿的市场，而更应从国家安全和国家可持续发展的高度来看等PLC。
整个自动化可以看成一个由传感器，执行器，控制，人机等组成的一个网络，而PLC无疑是这个网络中重要的节点之一，她起到了承上启下总管全局的作用，如果说自动化行业是一个国家现代化的皇冠，那PLC无疑正是这个皇冠上耀眼的那颗钻石。
中国目前正处于产业升级的前夕，从加工大国变成加工强国的核心之一就是装备自动化水平，为什么十一五把装备自主创新放那么高的位置正是这个原因。
如何能提升中国装备自动化的水平，光依靠国外的控制系统不是不可以，但因为不能提供深层次本地的服务，有很多问题是解决不了的，装备水平的进步很大程度上是依附在自动化发展上面的，很多高精尖的装备难点都在控制方面，只有本国有很强大的自动化产品研发水平，才有可能造就一个强大的装备制造业和强大的制造强国。
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