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| SRInstComms is an ActiveX control that
allows users of SIGNAL RECOVERY
instruments to control them from PC’s running Windows
95/98/NT/2000/ME/XP. Unlike the Acquire
data acquisition software which we also offer, it is not a
complete package but rather a component conforming to recognized
industry standards that allows instruments to be controlled by
user-developed programs. The only requirement is that these programs
must be written in a language that supports such controls, which in
practice is virtually all modern languages capable of developing
Windows applications. These include Visual Basic, Visual C++,
LabVIEW, Visual Basic for Applications (included in Word, Excel,
Outlook, Access and other Microsoft products) and VBScript
(supported by Internet Explorer).
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| The control takes care of all
communication between the user-developed program and the instrument,
performing the necessary handshaking and decoding status signals
over the selected interface, which is either GPIB or RS232. With the
exception of speed, the interface type is essentially transparent to
the user, making programs portable between systems with different
interfaces.
It includes an automatic search routine which will find any compatible instruments that are attached to the computer’s GPIB or RS232 ports. In most cases, this eliminates the need to adjust the communications settings controls on the instrument. The complete "profile" of connected instruments, together with any user-entered descriptive comments, is then securely saved in the system registry. Subsequent data transmissions to and from the instrument use this information to give the fastest possible communication.
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| Up to ten compatible
instruments can be controlled independently or simultaneously, so
that for example in a system measuring impedance one lock-in
amplifier can measure the sample current while a second measures the
voltage. Both instruments can be read via the control and the output
readings combined to determine the impedance.
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| The package includes a full printed instruction manual, as well as on-screen help so that programming information is always easily available. In addition, five sample applications in Visual Basic, Visual C++, LabVIEW, and Excel are supplied. The VB and VC++ examples both include a working executable as well as a full project workspace and all the corresponding source files. Similarly the LabVIEW and Excel demonstration programs are complete with all source code information so that they can be easily edited by the user. |
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| Example
Programs The supplied example programs offer a quick way to start developing a program. Unlike some software toolkits, this ensures that you have access to code that is known to work with a wide range of hardware. The Excel spreadsheet and LabVIEW VI demonstrate perfectly the power of the control, allowing data to be taken directly from the instrument and plotted to a graphical display. The HTML webpage, on the other hand, shows how the control can be used to create programs using very user-friendly interfaces, with all the power and convenience that comes from working from within the browser environment. Technical Requirements Ordering Information |
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| Accessories When ordering this software, don't forget to make sure that you have a suitable USB, RS232 or GPIB cable and GPIB interface card. Click on the links below to reach these items.
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Product and company names mentioned are trademarks or trade names of their respective companies
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801 South Illinois Avenue, Oak
Ridge, TN 37831-2011, U.S.A. (865) 482-4411 All Rights Reserved. |