essential bus 中文意思是什麼
essential bus
解釋
重要設備匯流條-
On basis of the development of modern control technology and apply of the network technology and locale bus - mastering technology ， this text analyzes the essential element for produce of wire - roll mill : principle of assign for speed ; expatiates in detail on the network structure and communication protocol of ethernet and profibus - dp ; concretely describes the forms of control system configuration ， the function and features of its software and hardware designs ; also, introduces mainly control function of control system, ， for example ， sequence control 、 loop control 、 fly shear control and operation and monitor function etc
基於現代控制技術的發展、網路技術以及現場總線技術的應用，本文分析了線材生產的基本要素：速度的分配原則；分析了工業以太網ethernet和現場總線profibus - dp的結構和通訊協議。主要說明plc控制系統的組織結構形式，系統的軟硬體設計的功能和特點。同時，詳細介紹了控制系統的主要控制功能，如邏輯控制、活套控制、飛剪控制以及操作監控功能等等。 -
On basis of the development of modern control technology and apply of the network technology and locale bus - mastering technology ， the paper analyzes the essential element of slab caster system : casting speed ; expatiates in detail on the network structure and communication protocol of ethernet and profibus - dp ; mainly describes the forms of control system configuration ， the function and features of its software and hardware designs ; also, introduces mainly control function of control system, for example ， sequence control, tracking system and operation and monitor function etc. and analyzed and settled the problems of control system in debugging and producing
根據傳統的控制系統存在的一些不完善的問題，基於現代控制技術的發展、網路技術以及現場總線技術的應用，從多方面考慮，決定控制層採用siemens的s7 - 400plc ，現場採用遠程i / o單元，很好的解決了信號量大而又分散的問題。針對生產工藝和機械設備的控制要求，設計了齊全的操作模式和方式，分析了板坯連鑄系統的基本要素：拉矯速度（澆鑄速度） ；根據控制功能的分配及實現，主要說明了plc控制系統的組織結構形式，系統的軟硬體設計的功能和特點。 -
At the same time, essential protective electro circuit is designed for safe. it chooses pc bus industry programmable computer and programmable controller as the host computer and designs two independent systems to control hoist or lower the stage and orchestra separately. for the sake of running safely, it applies ac motor with brake as the power device that adopt frequency conversion mode and inter lock and journey switch in electric circuit
設計中選擇了pc總線工業控制機和可編程序控制器作為控制系統的主機，設計了兩個獨立的系統分別控制升降舞臺和升降樂池，採用了制動電機作為舞臺升降的拖動裝置，電機的調速方法選擇了可以無級平滑調速、經濟節能的變頻調速方法，並在電氣上採用互鎖和行程開關來保證舞臺機械設備的安全運行。 -
The alternating current supply to ups for the main telephony equipment will be connected to an essential supply bus so that power can be provided by generators, when necessary
主電話設備所用的ups交流電源將接到基本電源總線，以便需要時由發電機供電。
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