簡介
LabVIEW Driver Software
- Signal Recovery儀器的LabVIEW驅動程式軟體，可自原廠網站下載，它提供了所有控制與輸出的虛擬儀表（VI）範例、一般的開始操作及虛擬儀表（VI）公用程式工具。
- 它也包括使用這些虛擬儀表（VI）所建立的軟體前面板範例，示範如何將它們囊括到更複雜的LabVIEW程式中。
- 每個驅動程式都包含一個處理儀器往來通訊的基本虛擬儀表（VI），可將儀器操作手冊中列出的任何指令寫入儀器及處理響應。
- Signal Recovery儀器的LabVIEW驅動程式軟體，可自原廠網站下載，它提供了所有控制與輸出的虛擬儀表（VI）範例、一般的開始操作及虛擬儀表（VI）公用程式。它也包括使用這些虛擬儀表（VI）所建立的軟體前面板範例，示範如何將它們囊括到更複雜的LabVIEW程式中。
- 驅動程式軟體包含什麼？
- 依據NI的建議，所有透過GPIB或RS232串列介面操作儀器的驅動程式，都使用NI VISA軟體擴充套件，這個優點是，它們可攜行至任何由LabVIEW及NI VISA支援的平台，不僅僅是電腦，並且可以使用同一部儀器的多個實例建構系統。例如，用於比例式光譜的2台7265，可以從同一個程式進行操作。而機型3820、3830的驅動程式使用基礎的ActiveX控制項進行儀器通訊，因此，將只能在Windows電腦上操作。
- 每個驅動程式都包含一個處理儀器往來通訊的基本虛擬儀表（VI），通常，這是採用VISA Write/Read VI的形式，可將儀器操作手冊中列出的任何指令寫入儀器及處理響應（假如有）。複雜的響應，例如曲線下載及對複合指令的響應，都可正確的解碼，而且VI是透過RS232或GPIB介面操作。通常，它也會決定儀器的狀態（例如過載及參考鎖定），並使它們可以作為Boolean輸出使用。
- 其它提供的基本VI，是用於開啟及關閉VISA對話，以確定儀器的狀態、韌體版本，及執行重置操作。
- VI的下一層支援不同的儀器控制及讀取需要的輸出，這些VI是特殊的，因為它們能儲存最後一個發送到儀器的設定，所以，假如重複讀出使用，它們不會在介面上產生不必要的指令，從而可以加速使用它們的程式。
- 在最上層，驅動程式包括一些應用範例及一個入門VI。後者的操作，基本上像是一個“靜態介面”的程序，是建立您自己程式的一個理想範本，而應用範例，通常採用軟體前面板的形式，並說明如何將較低階的VI組合，以產生一個有用的程式。
- 詳細規格、配件、軟體與選購，歡迎洽詢。
- A LabVIEW driver for the instrument is available from the Signal Recovery website, offering example VIs for all its controls and outputs, as well as the usual Getting Started and Utility VIs.
- It also includes example soft-front panels built using these VIs, demonstrating how you can incorporate them in more complex LabVIEW programs.
- What's Included?
- In accordance with National Instrument's recommendations, all drivers that operate instruments via GPIB or RS232 serial interfaces use the NI VISA software extensions. The advantage of this is that they are portable to any platform supported by LabVIEW and NI VISA, not only the PC, and that it is possible to build systems using multiple instances of the same instrument. For example, two model 7265's used for ratiometric spectroscopy can be operated from the same program. Drivers for the models 3820, 3830 use an underlying ActiveX control for instrument communication, and hence will only work on computers running Windows.
- Each driver includes a basic VI to handle communications to and from the instrument. This generally takes the form of a VISA Write/Read VI that will write any of the commands listed in an instrument's instruction manual to the instrument and handles the response, if any. Complex responses, such as curve downloads and responses to compound commands are decoded correctly, and the VI operates via either the RS232 or GPIB interfaces. It also generally determines the instrument's status (e.g. overload and reference lock) and makes these available as Boolean outputs.
- Other basic VI's are supplied to open and close VISA sessions, to determine the instrument's status, firmware revision and perform a reset operation.
- The next level of VI's support the different instrument controls and read the required outputs. These VI's are unusual since they have the capacity to save the last setting sent to the instrument so that if called repeatedly they do not generate unnecessary commands over the interface, thereby speeding up programs that use them.
- At the top level the drivers include some Application Examples and a Getting Started VI. The latter operates essentially as a "static interface" routine, and is a good template to use for building your own program, while the Application Examples generally take the form of a soft front panel and show how the lower level VIs can be combined to yield a useful program.
- Please feel free to contact for detailed specifications, accessories, software and options.