C7012E1104 Honeywell

DCS can not only complete the functions of the original analog instrument,but also greatly exceed the analog instrument.This is because it adopts 4C technologies such as advanced computer technology,communication technology,CRT technology and control technology.After digital control is adopted,the algorithms pre-stored in the ROM in the controller can be said to be infinite,and each algorithm represents a a function.These functions are implemented by analog circuits in analog instruments,which are limited by the drift,resistance,capacitance and other devices of the analog circuits.The cost of making an analog instrument with high precision is very high,or even almost impossible.The digital control algorithm is realized by the program.Use programs to replace the functions that can be achieved by analog lines.In theory infinite,that’s a big improvement

DCS不仅能完成原来模拟仪表的功能，而且大大超过模拟仪表。这是因为它采用了先进的计算机技术、通讯技术、CRT技术和控制技术等4C技术.采用数字控制以后，控制器中预先存到ROM中的算法可以说是无限的，每一种算法代表一种功能。这些功能在模拟仪表中是用模拟线路来实现的，它受到模拟线路的漂移、电阻、电容等器件的限制，作一个精度很高的模拟仪表成本很高，甚至几乎是不可能的。而数字控制的算法是用程序实现的。用程序来代替模拟线路所能实现的功能。在理论上是无限的，这是很大的进步