KnowledgeBase Results

Showing 271-300 of 476 results
Using Multiple Loops With The NI 9205/9206 Module
I have multiple loops in my FPGA VI which each access different channels of the NI 9205/9206 module. How can I ensure the maximum performance from the module in this configuration?
What is the Effective Number of Bits (ENOB) for cDAQ modules?
What is the effective number of bits (ENOB) for various cDAQ modules, such as the NI 9239 analog input C Series module and NI 9219 universal analog input?
Incorrect Conversion Time Using The NI 9205 Module
I have a CompactRIO which uses an NI 9205 module to sample analog voltages in FPGA interface mode. When I read a single channel with this module, I am able to achieve the minimum time between conversions ...
Why Can't I See My NI 9144 in MAX?
I have connected my NI 9144 8-slot EtherCAT Slave Chassis to my cRIO, why can't I see it in Measurement & Automation Explorer (MAX)?
Error -61141 When Opening Simultaneous References from RT Controller to FPGAs Placed on Local and Remote Chassis
I want to open an FPGA reference on my Real-Time controller to an FPGA placed on a remote CompactRIO chassis. I also want to open an FPGA reference to the FPGA on my local CompactRIO chassis. One of the ...
Can I Daisy Chain a NI cRIO-9074 with Another NI cRIO Real-Time Controller?
I have two CompactRIOs (one is a cRIO-9074) and I would like to access the I/O modules on the second controller from the 9074. How do I properly daisy chain a NI cRIO-9074 with another cRIO controller, ...
Do I Need The FPGA Module To Use The NI 9802 Module In My CompactRIO?
I have an NI 9802 SD card module and would like to mount it as a drive in the CompactRIO’s Real-Time OS. Do I still need the FPGA module to achieve this?
Can I Mount An SD Card In The NI 9802 Module In Real-Time And Also Access It In My FPGA VI?
I have an NI 9802 module and I have successfully mounted it in my real-time VI for file access. Can I also access the module from my FPGA VI at the same time using standard FPGA I/O methods?
Can I Program the FPGA on the NI 9144 EtherCAT Expansion Chassis?
I have a CompactRIO chassis with a Real-Time controller and a NI 9144 EtherCAT Chassis.  I am using the FPGA on my CompactRIO but also want to use the FPGA on the NI 9144.  Can I do this?
Why Does my NI 9233/9234 Load Cell Signal Decay?
Why is my load cell connected to the NI 9233/9234 returning readings that delay exponentially, even though I am applying a constant force?
Timeout Error When Installing Software on CompactRIO
When I attempt to install software on my CompactRIO, the installation begins, but ends with a timeout error. What happened, and how can I fix it?
What NI Product Can I Use for Wireless DAQ in Class I Division 2 Hazardous, Explosive Environments?
I want to acquire data wirelessly in a gaseous, explosive environment.  The DAQ device must pass Class I Division 2 or Class I Zone 2 North American hazardous locations certifications.  Which NI product ...
Why Won't My VxWorks Controller Reboot or Ping Itself?
Why won't my VxWorks controller (such as a cRIO 9012) reboot itself with the RT Reboot Controller VI? Also, why won't my VxWorks controller detect itself on the network with the RT Ping Controller VI?
What is the Maximum Number of NI 9144 Chassis That Can Be Daisy Chained Together?
I know the NI 9144 chassis can be used in a daisy chain, namely connecting multiple chassis in series through their ethernet ports.  Is there a limit to the amount that can be connected together?
Can Switches, Hubs, or Routers Be Used With The NI 9144?
I know the NI 9144 can be daisy chained.  Can I use a switch with my NI 9144s instead to form a star topology?
How Do I Achieve the Maximum Update Rate for Multiple NI Scan Engine Channels on the NI 9205?
I added 16 NI 9205 analog input channels within a timed loop that's synchronized to the NI Scan Engine. When I set the Scan Period to 1ms, I found that every iteration of the loop finished late. How can ...
What Modules Are Onboard the Single Board RIO and How Do They Differ From C-Series Modules?
I know the sbRIO includes modules for different forms of input and output. How do these modules correlate to the different sbRIO models, and how do they differ from their c-series counterparts?
Does Upgrading LabVIEW Require Recompiling My FPGA Bitfile?
I've recently upgraded my LabVIEW, LabVIEW Real-Time module, and LabVIEW FPGA module to a newer version.  Do I need to recompile my FPGA bitfile?
How to Access LabVIEW or LabWindows™/CVI Examples for Specific NI Hardware
I am using LabVIEW or LabWindows/CVI with NI hardware. Where can I find example programs that are specific to my hardware?
How Can I Connect a Quarter Bridge to an NI 9944 or NI 9945 with an NI 9237 Module on a CompactRIO System?
I have physically connected a quarter bridge to either an NI 9944 or NI 9945 following the steps in KnowledgeBase 47SGM5CY: NI 9945 or NI 9944 with an NI 9237 Connection Guide. However, the reading is ...
Cabling Clearances for C Series Modules
How much clearance do the different types of C Series module connectors require for cables and backshells?
How to Resolve Xilinx Compilation Error 91
I try to compile any LabVIEW FPGA code, and I always receive the following error during the compilation:   FATAL_ERROR: <name of library> - dll open of library failed due to an unknown reason. Process ...
How Can I Have My FPGA VI Run At Boot?
I would like to have my standalone FPGA code start running when I power on my device. How can I deploy my FPGA VI to an R-Series card and have it run at boot time?
How Can I Have My FPGA VI Run At Boot?
I would like to have my standalone FPGA code start running when I power on my device. How can I deploy my FPGA VI to an R-Series card and have it run at boot time?
CompactRIO FPGA Nodes May Return Module Communication Error 65536 Instead of Incorrect Module Error/Warning
I receive the following error from a CompactRIO FPGA Node: Error 65536 occurred at an unidentified locationPossible reason(s):CompactRIO (Hex 0x10000) Unable to communicate with the module. Reinsert the ...
Why Does the Execution Speed of the NI 9425 I/O Node Vary Depending on Which Digital Lines are Used?
When using a NI 9425 digital input module in a CompactRIO system, the update/transfer time seems to vary depending on which digital lines are being used.  For example, when reading from digital lines 0 ...
What is the Absolute Accuracy for Half the Voltage Input Range?
I would like to know the formula to determine the absolute accuracy for the half the input voltage range. For example, I would like to know the accuracy for the 0 - 10V range of the NI 9205, but only the ...
Does the 9205 Use the Linearization Coefficients When Returning Calibrated Data in LabVIEW FPGA?
Are the Linearization Coefficients used to generate calibrated data for the 9205 when the Calibration Mode is set to Calibrated in NI-RIO 2.4 and later?
Does the NI-9205/9206 Use the Linearization Coefficients When Returning Calibrated Data in LabVIEW FPGA?
Are the Linearization Coefficients used to generate calibrated data for the NI-9205/9206 when the Calibration Mode is set to Calibrated in NI-RIO 2.4 and later?
What is the Input Voltage Limitation of the 9425 Module?
On page 12 of the 9425 module specifications (linked below), I can read that the maximum input voltage is 60 VDC if using 8 channels, and 30 VDC if using 32 channels. Why does the voltage limitation depend ...

Search Syntax Summary

OperatorExampleActionBoolean Equivalent
" " "temperature monitoring" Requires two terms to be adjacent to each other. In this example, only documents containing the phrase "temperature monitoring" will be shown. ADJ
+ +temperature Requires this term to be present as-is, eliminating the use of synonyms. This search query can be used in conjunction with other keywords to find only documents containing the word "temperature". AND
- -monitoring Excludes results containing this term. Use this query in conjunction with other terms to find only documents not containing the word "monitoring" NOT
* monitor* Acts as a wildcard. This example will return documents containing words "monitor", "monitoring", "monitored", etc n/a

Basic Tips

  • Search is not case sensitive. Searching for LabVIEW is the same as searching for labview.
  • Keep your query short and focused, including all relevant keywords. For example, searching for labview error is much more vague than labview error 1041.
  • Usually, all punctuation and special characters are interpreted as delimiters and are ignored. See exceptions on the Syntax page. Be especially careful when using a minus sign in front of an error number, as it excludes it from the results.
  • Search for keywords you would expect to see on a page. For example, terms pxi does not work are unlikely to appear in technical documentation. The query like analog output noise will return better search results.

Advanced Tips

  • You locale settings identify your current geographical location and affect your search results. For example, if you set your country to Japan, Japanese documents will get boosted in your search results. Check your locale settings in the top right corner of the search page.