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● 支持中文界面
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◎ 控制策略組態軟件ControI BuiIder,為生成控制策略提供全套控制算法庫
◎ 係統資源組態軟件Quick Builder,用於創建係統硬件
◎ 用戶畫面組態軟件HMIWeb Display BuiIde,用於創建基於HTML格式的操作員圖形界面
● 強大的數據交換功能
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● 基於PC的倣真控制器環境,無須控制器硬件
PR6423/008-130 CON021 機轉速傳感器EPRO汽輪機TSI監測含前置器
產品詳情資料
SATA的困擾
使用SATA硬盤現在***一時,因為相對價格較低。應用是作為企業磁盤到磁盤的近線存儲與備份,但是現在,用戶使用SATA硬盤來做主要數據在線存儲的案例也比比皆是,其原因是因為可以節約***。SATA硬盤甚至成為了大型數據庫的主要存儲設備,其他以前使用FC硬盤的領域,現在也能看到SATA硬盤,顯然用戶對存儲空間單位***極為關注,但似乎忽略了一些可靠性方面的問題。
好在現在RAID廠商已經開發了支持RAID-6控制器的SATA產品來打消這些疑慮,RAID6增加了***個獨立的奇偶校驗信息塊,而不象RAID5只有一個校驗塊,所以可以同時允許兩塊硬盤出現故障。
但RAID6同時帶來的是需要分配更多的磁盤空間,也需要在控制器和硬盤之間比RAID5提供更多的帶寬。我們使用硬盤廠商希捷網站上提供的數據來做例證,750GB容量的SATA硬盤平均傳輸速度是78MB/秒,如果你用的RAID5時,你需要702MB/秒的傳輸速度讓RAID集正常工作,但如果你用的是RAID6,平均速度至少要達到780MB/秒,或者提供10%額外的帶寬。同樣的速度問題在需要大量讀寫操作的應用軟件中也存在,包括視頻、音頻輸入輸出流。還有一個可能被大家忽視的應用,那就是數據庫重建索引。
毫無疑問SATA硬盤提供了一個較低的單位存儲空間***,但是由於與FC硬盤相比每秒輸入輸出次數更少,而且指標都比FC硬盤稍遜一籌,比特誤碼率,硬盤轉速以及較長搜索時間,企業究竟決定購買何種硬盤,顯然還需要考慮更多地因素。
性能對連接組件的需求
當我們想要獲得所需要的性能時,我們還需要做哪些投入呢?
假設需要建設滿足性能要求的輸入輸出流的環境,需要每秒以MB或GB計算的傳輸速率,我們配備以下的硬件。
英文產品詳細信息
The troubles of SATA
The use of SATA hard drives is now * * * temporary due to their relatively low price. The application serves as a near-line storage and backup for enterprise disk to disk, but nowadays, there are also many cases where users use SATA hard drives for primary data online storage, because it can save * * *. SATA hard drives have even become the main storage device for large databases. In other fields that used to use FC hard drives, SATA hard drives can now be seen. Obviously, users are extremely concerned about storage space units, but it seems to have overlooked some reliability issues.
Fortunately, RAID manufacturers have now developed SATA products that support RAID-6 controllers to dispel these concerns. RAID6 has added * * * independent parity information blocks, unlike RAID5, which only has one parity block, allowing two hard drives to fail simultaneously.
But RAID6 also brings with it the need to allocate more disk space and provide more bandwidth between the controller and hard drive than RAID5. We use the data provided on the hard drive manufacturer Seagate's website as an example. The average transfer speed of a 750GB SATA hard drive is 78MB/s. If you are using RAID5, you need a transfer speed of 702MB/s to make the RAID set work properly, but if you are using RAID6, the average speed should reach at least 780MB/s, or provide 10% additional bandwidth. The same speed issue also exists in applications that require a large amount of read and write operations, including video and audio input/output streams. Another application that may be overlooked is database indexing.
There is no doubt that SATA hard drives provide a lower unit of storage space * * *, but due to fewer input and output times per second compared to FC hard drives, and various indicators slightly inferior to FC hard drives, bit error rate, hard drive speed, and longer search time, enterprises need to consider more factors when deciding which hard drive to purchase.
Performance requirements for connecting components
What additional investments do we need to make when we want to achieve the required performance?
Assuming that we need to build an environment with input and output streams that meet certain performance requirements and require a transmission rate in MB or GB per second, we must be equipped with the following hardware.
PR6423/008-130 CON021 機轉速傳感器EPRO汽輪機TSI監測含前置器
3500係列組成部分概述:
3500/70M往復壓縮機衝擊/速度監測器
3500/72M 活塞桿位置監測器
3500/77M 汽缸壓力監測器
3500/63 氣體監測器
3500/92 通訊網關
3500/93 LCD 顯示裝置
3500/94 VGA 顯示裝置
3500/95 係統綜合 PC 顯示裝置
3500/40M Proximitor? 監測器模塊:通道類型-徑向振動、軸向位移、偏心、差脹
3500/42M Proximitor? /位移/速度加速度監測器模塊:通道類型-加速度、速度、軸振動
3500/45 位置監測器模塊:通道類型-軸向位移、差脹、斜面差脹、殼脹、閥門位置
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