IS200BLIGH1A
IS200BLIGH1A
IS200BLIGH1A
在某些情况下（例如：绘制温度、压力或位置曲线时），用户需要将实际的趋势曲线跟设定值（理想）曲线同时显示在趋势图中进行比较。本文介绍了如何使用WinCC的“函数趋势控件“和“用户归档“实现以上的需求。
同时将实际的趋势曲线和设定值（理想）曲线显示在趋势图中，可以方便客户进行比较，运行时的效果如图1所示。在“函数趋势控件“上，横坐标代表绘制的点的序号，按照时间序列从左到右依次排列，纵坐标代表变量值。本例中每隔1秒钟读取一次变量值。图1中红色曲线代表理想曲线，根据一组设定值绘制，理想趋势的数值必须保持在用户归档中；蓝色曲线代表实际的趋势曲线，根据各个时刻变量的实际值绘制
engineering software, and at the same time have high-speed logic and sequence control equivalent to high-end PLC indicators.
control performance. The system can be connected to both conventional I/0 and various field bus devices such as Profibus, FF, CAN, and Modbus. system tool
It has a high degree of flexibility and excellent scalability, whether it is the control of small production units, or the control of ultra-large-scale whole plants – integrated control, even
The Industrial” system can handle the application of field equipment maintenance management and cross-plant production management control with ease.
An important member of the Industrial” family, the AC800F system fully embodies the Industrial” (Industrial Information) system pioneered and led by ABB in technology.
information technology) new trends.
The system is divided into two levels: operation management level and process control level. At the operation management level, not only the traditional control system monitoring operation function is realized
function (operation and display, printing, trend display and alarm), and also complete system hardware diagnosis and data exchange between different systems.
can. The process control stage realizes various loop adjustments including complex control (various PID, ratio, Simith, etc.) and high-speed logic control.
Control, sequence control and batch intermittent control functions.
The internal communication of the process control station (between the controller and various intelligent devices such as I/0 or field instruments) adopts the international standard field controller.
Wire. The field controller supports various field buses such as Profibus. Profibus is the most widely used open field bus in the world.
Line international standard, divided into FMS, DP
Industrial “is a world leading all-round comprehensive open control system launched by the automation headquarters of ABB group
It integrates the advantages of traditional DCS and PLC and supports a variety of international fieldbus standards. It has the complex analog loop regulation function of DCS
Friendly human-machine interface (HMI) and convenient engineering software, as well as high-speed logic and sequence control equivalent to high-grade PLC indicators
Braking performance. The system can connect not
