You should consider all driver choices available, and choose the driver that best fits your needs. The class interface changes and a new set of properties and methods are now selectable, shown in Figure 6. Converting variant data to an array See Also: Figure 10 shows the Context Help window for the AutoRange property. An instrument driver is a set of software routines that control a programmable instrument. Place a checkmark in the Show Creatable Objects Only check-box to display only objects that you can create. Using dotted properties and methods.

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In Figure 7notice that the sessions to the DCVoltage interface and to the driver session are closed after they are used. The block diagram should now appear similar to Figure 2.

Dotted properties are a shorthand alternative to cascading multiple Property Nodes that return interface references needed for wiring properties and methods specific to a given interface.

Converting variant data to an array Ici Also: The Type Library list contains the type libraries for all the registered ActiveX servers on the system in alphabetical order. Selecting a dotted property.

This is typically the first interface in the list. Using dotted properties and methods. Selecting help for Initialize method. You should close references to all ActiveX sessions and interfaces when you are finished using them. Place a checkmark in the Show Creatable Objects Only check-box to display only objects that you can create.

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This list can be long, so you might need to browse for keywords that match the driver, such as the vendor name or “IVI”.

Each routine corresponds to a programmatic operation such as configuring, reading from, writing 344001a, and triggering the instrument. An instrument driver is a set of software routines that control a programmable instrument.

Instrument Control (GPIB, Serial, VISA, IVI)

You should consider all driver choices available, and choose the driver that best fits your needs. Figure 10 shows the Context Help window for the AutoRange property.

Select the same type library you selected for the Automation Open refnum. Learn more about our privacy policy. Links to complete examples demonstrating how to execute the Measurement method and read the measured value are provided at the end of this document.

Automation Open and type library refnum. Viewing context help for AutoRange property. Automation Open and Initialize method.

Click on the block diagram to place the Initialize method on the diagram. Iiv dialog box appears, shown in Figure 1. The class interface changes and a new set of properties and methods are now selectable, shown in Figure 6.

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Solved: create IVI driver for HP a – Discussion Forums – National Instruments

Installing Software Refer to the instrument driver Readme file for detailed software requirements. This site uses cookies to offer you a better browsing experience. Agilent IO Libraries Suite version Rate this document Select a Rating 1 – Poor 2 3 4 5 – Excellent.

Refer to the instrument driver help to determine the array data type. Instrument drivers simplify instrument control and reduce test program development time by eliminating the need to learn the programming protocol for each instrument.

Agilent Technologies / Keysight Technologies 34401A

Using the Class Browser. Dottable properties have a blue glyph next to the property name.

An example of how to access the help for the Initialize method is shown in Figure 9.

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