1783-HMS4EG8CGN

1783-HMS4EG8CGN

1783-HMS4EG8CGN

70年代微机技术还不成熟，计算机技术还不够发达。操作站、控制器、I/O板和网络接口板等都是DCS生产厂家自行开发的，也就是所有部件都是专用的。
70年代初，有人用如PDP/1124这样的小型机代替原来的集中安装的模拟仪表控制。连接到中央控制室的电缆很多。如用小型机既作为控制器、同时把连接小型机的CRT又作为显示设备（即人机界面）。一台小型机需接收几千台变送器或别的传感器来的信号，完成几百个回路的运算。很显然其危险有点集中。和模拟仪表连接的电缆一样多，并且一旦小型机坏了，控制和显示都没有了。数字控制没有达到预期的目的。

现货，现货，降降降，火火火，火火火……

现货，现货，降降降，火火火，火火火……

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◆ 企业名称：厦门泰尼电气有限公司

◆ 联系人： 小廖（女士）

◆ 电话：0592-6539066
   
◆ 手机：18965113601 

◆ 传真：0592-6890859

◆ QQ:1490371370

诚信经营，质量为首，服务至上，厦门泰尼小廖竭诚为您服务！！！

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