bus mastering 中文意思是什麼
bus mastering
解釋
外部總線控制器-
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。 -
The features of pci local bus, signal definition, command definition, bus operation and the addendum of the pci local bus specification, revision2. 3 are introduced briefly at first. then the structure and function of plx pci 9656 pci bus mastering i / o accelerator are summarized including : pci 9656 ' s three data transfer modes ( direct master, direct slave, and dma ) and direct connection to three processor local bus types ( m mode, c mode. j mode )
在簡要介紹了pci總線的特點、 pci總線的信號、命令和操作規范、 pci總線的配置空間以及有關最新pci總線規范pci2 . 3里的一些新增和修改的內容之後，本文概述了plx公司的pci總線專用控制器pci9656結構和功能，並介紹了pci9656的發起者、從設備、 dma三種工作模式以及m 、 c 、 j三種局部總線介面方式。 -
I ' ll present two simple driver sample programs as well : one for dealing with a pio device and one for dealing with a bus - mastering dma device
我還給出了兩個簡單的驅動程序例子：一個用於pio設備，一個用於總線主控的dma設備。 -
The profibus - dp bus - mastering network of the system researched in this article was constructed which adopts plc300 as main site and the module of em277 date bus mating with plc200 as subordinate site, through the hardware station construction and the software configuration realized the network communication, and edited the master site procedure to realize controlling subordinate sites, then the master station procedure has been carried on simulation running and debugging
本文研究的系統構建了一個以西門子公司的s7 - 300plc為主站、以s7 - 200plc配合em277總線模塊作為從站的profibus - dp總線控制網路，通過硬體建站、軟體組態來實現網路的通訊，並編輯主站程序實現了對從站的控制，然後對主站程序進行了模擬運行和調試。
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