KnowledgeBase Results

Showing 271-300 of 469 results
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, ...
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?
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 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 Improve the Update Rate Of Multiple NI Scan Engine Channels?
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?
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 ...
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 ...
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 ...
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?
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?
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 ...
Why Does It Take So Long to Compile an FPGA VI for a CompactRIO in Hybrid Mode?
I have a CompactRIO (cRIO) set up such that some of my modules are utilizing Scan Mode and some of my modules have custom code written in an FPGA VI.  My project looks similar to the one pictured below ...
Stop Trace and Send VI Crashes or Hangs VxWorks Target
Using the Execution Trace Toolkit, I can create the default buffer size of 250000. However when the traces write into the buffer, my VxWorks target crashes or hangs. I may receive one of the following ...
Letter of Volatility for CompactRIO Backplanes
I need official confirmation that sensitive data passing through National Instruments CompactRIO Backplanes will be erased when the device loses power.
How do I Reset the Password for My CompactRIO (cRIO)?
I locked the IP configuration on my CompactRIO in Measurement & Automation Explorer and forgot the password. How do I reset it?
Programmatically Setting the NI 9205/9206 Voltage Range
I want to be able to programmatically set the voltage range on each of my analog inputs on the NI 9205/9206 independently. How do I set these ranges?
Errors Deploying Applications with Sound and Vibration in a cRIO
I made my application for order analysis, and when I deploy the application to the target I get the following errors during the deployment: Failed to Download OAT Frequency Shift (Mixer).vi or LabVIEW:Failed ...

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