描述
1394C-SJT22-A
在中国，大约从1974、75年在北京和上海开始开发采用位片式微处理芯片的可编程顺序控制器，并有所应用。但一直未能形成批量生产。在改革开放刚起步的1979年，在当时的机械部仪表局的推动下，开始从美国MODICON引进起584的PLC，并首先在电站的辅机如输煤、除灰除渣、水处理系统以及水泥厂等控制系统中成功应用，从而大大推动了PLC在我国工业的大规模运用。遗憾的是，花了很大一笔外汇的这个项目并不曾形成良性的有后续的发展。
自1985年开始，小型PLC首先是日本三菱电机公司的MELSEC-F，通过非政府渠道进入中国市场。不到三、四年时间，小型PLC就形成了大面积的推广应用局面。1990年以后，Siemens、Allen Bradley以及其它知名品牌开始大举进入中国市场，占据中、大型的PLC的较大份额。1995年后形成了大型PLC以欧美为主、中型PLC欧美和日本平分秋色、小型PLC则以日本为主、Siemens也步步紧逼的格局。至今没有很大改变。
由上简要回顾可知， PLC在中国已经形成了规模巨大的应用市场，但并未建立批量生产、有持续开发发展能力的PLC制造业。
应指出的是：
在国内，PLC的应用水平还是不低的，自主设计、系统集成和现场投运的能力，可以说与国际主流水平同步；
PLC的应用领域也很广泛，覆盖冶金、电力、化工、石油化工、机械、轻工、电子、电工、建材水泥等工业，以及现代农业机械和其它应用。近年来环保工业也有广泛应用，发展势头很猛。
在国内有一支庞大的PLC销售、服务、应用、系统集成队伍，遍布除西藏外的全国各地。
产品承诺：
保 证 全新原装进口,
保 证 安全准时发货，
保 证售后服务质量，
优势价格，大量现货。
主营DCS系统配件
机器人系统配件
大型伺服系统配件
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