Place a checkmark in the Show Creatable Objects Only check-box to display only objects that you can create. Click on the block diagram to place the Initialize method on the diagram. Refer to the instrument driver help to determine the array data type. The block diagram should now appear similar to Figure 2. Each routine corresponds to a programmatic operation such as configuring, reading from, writing to, and triggering the instrument. Selecting a dotted property. Automation Open and type library refnum.
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Automation Open and Initialize method. An example of how to access the help for the Initialize method is shown in Figure 9. Each routine corresponds to a programmatic operation such as configuring, reading from, writing to, aiglent triggering the instrument.
Dottable properties have a blue glyph next to the property name. A dialog box appears, shown in Figure 1. Converting variant data to an array See Also: Figure 10 shows the Context Help 34401aa for the AutoRange property. An instrument driver is a set of software routines that control a programmable instrument.
In Figure 7notice that the sessions to the DCVoltage interface and to the driver session are closed after they are used. Refer to the instrument driver help to determine the array data type.
This list can be long, so you might need to browse for keywords that match the driver, such as the vendor name 34401a “IVI”. Selecting a dotted property. Links to complete examples demonstrating how to execute the Measurement method and read the measured value are provided at the end of this document.
Using an IVI-COM Instrument Driver in LabVIEW
Place a checkmark in the Show Agielnt Objects Only check-box to display only objects that you can create. Using the Class Browser. This is typically the first interface in the list.
Automation Open and type library refnum. Agilent IO Libraries Suite version Instrument drivers simplify instrument control and reduce test program development time by eliminating the need to learn the programming protocol for each instrument.
34401A Digital Multimeter IVI and MATLAB Instrument Drivers
Click on the block diagram to place the Initialize method on the diagram. The block diagram should now appear similar to Figure 2. The Type Library list contains the type libraries for all the registered ActiveX servers on the system in alphabetical order.
Using dotted properties and methods. Select the same type library you selected for the Automation Open refnum. Selecting help for Initialize method.
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.
Installing Software Refer to the instrument agielnt Readme file for detailed software requirements. You should close references to all ActiveX sessions and interfaces when you are finished using them. The class interface changes and a new set of properties and methods are now selectable, shown in Figure 6.