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CC-TDIL01 51308386-175通訊

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產品標題: CC-TDIL01 51308386-175通訊模塊

型號： CC-TDIL01 51308386-175

品牌： 霍尼韋爾

                                                                                 產品詳情資料：


Experion PKS DSA架構

　　分布式係統架構DSA(Distributed System Architecture)是HoneywellExperion PKS創新技術之一。它將每個生產裝置一個稱之為Experion PKS 族來控制，每個族具有獨立的實時過程數據庫(ERDB),保證每個族的獨立性。多個Experion PKS 族通過DSA可以很容易地集成一個單一的係統中，無需重復組態，無縫集成所有DCS數據,包括實時點數據, 報警事件, 操作信息, 歷史數據，操作權限等等。在ERDB之上使用更高層次的企業模型數據庫(EMDB)，實現族之間的管理。從而實現各生產裝置的信息集中管理和共享，構成超大規模係統，並且易於擴展。

　　DSA可使用各種通用的網絡，包括局域網、廣域網。支持微波、衛星、租用專線網絡等，突破地理位置上的分散。

　　ExperionPKS 分布式係統架構DSA，是目前一個能夠實現更高層次集散控制概念的過程自動化控制係統。是集散控制係統DCS發展非常重要的一個趨勢。

　3.2 新一代過程控制器--C300

　　過程控制器是DCS基礎功能，前幾年由於現場總線的發展，一些PID控制回路下移到現場儀表中，有些人認為DCS的發展趨勢是過程控制器的功能將被削弱，將來甚至會消失。而霍尼韋爾ExperionPKS的過程控制器C300的推出說明，過程控制器不但不會消失，而且功能會更加強大。過程控制器的發展方向就是提高過程控制品質。

　　提高過程控制品質(Performance)，就是以前一些無法實現自動調節，或調節精度較差的回路，實現自動調節。從而提高生產過程的整體穩定性，實現過程品質的提高。

　　大家知道調節回路控制都是使用基於PID算法。PID算法發明於上世紀30年代，基本算法已經有 70 多年沒有改變了，大約 99% 的單回路常規控制是由 PID控制的。PID 簡單, 快速, 通用, 並且靈活。但是PID也存在一些問題，主要有：

　　PID難以處理那些大滯後，非線性，和強幹擾的過程；

　　PID魯棒性不理想，不同工況其參數是不一 樣的；

　　PID參數整定不容易；

　　PID會將幹擾信號直接傳到控制器的輸出。

　　PID存在的問題早就被人們發現，盡管出現很多PID參數整定方法，但是無法根本解決問題。多年來人們一直在尋找的控制算法來取代PID,以解決其不足，但均無成功。現在霍尼韋爾在Experion PKS的過程控制器上推出了可取代PID的過程回路調節算法Profit loop, 成功地解決了PID的不足。



                          產品英文詳情資料：


Experion PKS DSA architecture


Distributed System Architecture (DSA) is one of the innovative technologies of Honeywell Experience PKS. It controls each production device using a family called Experion PKS, each with an independent real-time process database (ERDB) to ensure the independence of each family. Multiple Experion PKS families can be easily integrated into a single system through DSA, without the need for repeated configuration, seamlessly integrating all DCS data, including real-time point data, alarm events, operational information, historical data, operational permissions, and more. Using a higher-level Enterprise Model Database (EMDB) on top of ERDB to achieve management between families. Thus achieving centralized management and sharing of information among various production devices, forming a large-scale system that is easy to expand.


DSA can use various universal networks, including local area networks and wide area networks. Support microwave, satellite, leased line networks, etc., breaking through geographical dispersion.


ExperionPKS distributed system architecture DSA is currently the only process automation control system capable of implementing higher-level distributed control concepts. It is a very important trend in the development of distributed control systems (DCS).


3.2 New Generation Process Controller - C300


Process controllers are the basic functions of DCS. In recent years, due to the development of fieldbus, some PID control loops were moved down to field instruments. Some people believe that the development trend of DCS is that the functions of process controllers will be weakened and even disappear in the future. The launch of Honeywell ExperionPKS's process controller C300 indicates that the process controller will not only not disappear, but also become more powerful. The development direction of process controllers is to improve the quality of process control.


Improving process control quality (Performance) refers to achieving high-precision automatic adjustment for circuits that were previously unable to achieve automatic adjustment or had poor adjustment accuracy. Thus improving the overall stability of the production process and achieving an improvement in process quality.


Everyone knows that the control of the regulating circuit is based on PID algorithm. The PID algorithm was invented in the 1930s, and the basic algorithm has remained unchanged for over 70 years. Approximately 99% of the global single loop conventional control is controlled by PID. PID is simple, fast, versatile, and flexible. However, PID also has some issues, mainly including:


PID is difficult to handle processes with large lag, nonlinearity, and strong interference;


The robustness of PID is not ideal, and its parameters vary under different operating conditions;


PID parameter tuning is not easy;


The PID will directly transmit the interference signal to the output of the controller.


The problems with PID have long been discovered, and although many PID parameter tuning methods have emerged, they cannot fundamentally solve the problem. For many years, people have been



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