KnowledgeBase Articles Find solutions to common questions and issues with NI products. These articles are written by NI Application Engineers.

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How Can I Programmatically Open Multiple VISA Reference?
I need to programmatically open multiple instances of the VISA driver (because I have more than one VISA resource), how can I smartly do it in LabVIEW?

Unexpected Report Rows Number
I am using LabVIEW Report Generation Toolkit Append Table to, but I see that the report being generated has fewer rows than those I expect. What can be the cause?

Unlock Error Occurs When Using Ref Clock of PXIe Chassis in Other Equipment
I want to use a 10 MHz reference Clock on the backplane of the PXIe-1082 Chassis to use as a clock source for a third-party device. However, an unlock error occurs on third-party equipment. What causes ...

What is the Voltage Level of the Counters on the cDAQ Chassis
What is the voltage level of the counters on the cDAQ chassis , how do I know what is high and low voltage (1 logic or 0 logic)?

How To Bind a Keyboard Button To a Control
I want to change a control value on the front panel by pressing a keyboard button, how can I do it?

Error -1074097852 When Trying to Control a DMM Card?
I want to control PXI 4065 with LabVIEW panel. However, an error shows that "Error -1074097852 Possible reason(s): Resource requested by this task has already been reserved by a different task."The card ...

Why do Some Icons or Palettes Appear with Question Marks in LabVIEW?
When I open LabVIEW, a number of icons or palettes show with question marks in the Functions or Controls palette. What does this mean and how can I fix it?

Trigger Data Recording in FlexLogger
I want to automate the datalogging in FlexLogger, is that possible?

Including CompactRIO Configuration Support in LabVIEW Executable
i'm building an installer for an executable in LabVIEW, and I'd like to include the installer needed to configure CompactRIOs in NI Measurement & Automation Explorer. Which installer do I need to include ...

How to Deactivate a Volume License Manager Seat
I use the NI Volume License Manager to license the NI software at my company. Unfortunately, I have reached the limit of my available seats, and I would like to revoke, deactivate or delete some users ...