KnowledgeBase Results

What Units Are Returned from C-Series Analog Modules When Using Fixed-Point Data?
I am using Fixed-Point Data in my FPGA project for my C-series analog modules. What units will be returned with this data?
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 ...
What is the Analog Input Impedance of the NI 9237?
I have an NI 9237 and I would like to know the analog input impedance of the module to incorporate this data into my strain measurements.  What is the  analog input ...
Is the Ethernet Port of the CompactRIO (cRIO) 9004 Controller Isolated?
Is the Ethernet Port of the cRIO 9004 Controller Isolated?
How to Read a Current Loop System with CompactRIO?
I want to read a 4 - 20 mA current loop system with CompactRIO (cRIO).  Which module should I use and what configurations are possible?
Does the NI 9151 Expansion Chassis Affect the Performance of My C Series Modules?
I am using the NI 9151 R Series Expansion Chassis with my PXI R Series card. Does using the expansion chassis affect the performance of my C Series modules compared ...
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)?
Can I Use FPGA Emulation Mode in a PXI System with a 9151 R Series Expansion Chassis?
I have an R-Series PXI/PCI-783xR card connected to an NI 9151 CompactRIO Expansion Chassis. I am trying to use the Use Target Hardware for I/O option to emulate ...
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 ...
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 of the NI 9144 EtherCAT Expansion Chassis?
I have a CompactRIO chassis with a Real-Time controller and a NI 9144 Deterministic Ethernet Chassis.  I am using the FPGA on my CompactRIO.  Can I also use the ...
Which C Series Modules Have Anti-Alias Filters?
Which C Series modules are available with anti-alias filters? Why do the NI 9215, and 9221 modules not have anti-alias filters?
Why am I Getting Large Binary Values From Analog FPGA Reading?
 I am seeing raw binary data that is outside of the range of my analog device in my FPGA code. Why is this happening?
Moving CompactRIO VIs with Uncalibrated Data to FPGA Targets with Calibrated Data
In versions of NI-RIO prior to 2.4, C Series Modules only return binary (uncalibrated) data, which requires the host VI to apply calibration coefficients and convert ...
Different Types of Isolation: Channel-to-Channel, Bank (Channel-to-Bus), and Channel-to-Earth Ground Isolation
What is Isolation? I do not understand the differences between channel-to-channel, bank (channel-to-bus), and channel-to-earth ground isolation. What are the differences ...
How to Wire the Shield Pins of My 9944/9945 Terminal Blocks
I see the shield terminal on my 9944/9945 terminal block but I don’t know how to use it.
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 ...
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?
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 ...
What is the Maximum Number of Samples for Finite Analog Output on the USB-9263?
I would like to know the maximum sample count for finite analog output on the USB-9263.
Error -201247 When Adding WLS or ENET C-Series Module in Measurement & Automation Explorer
I have an NI WLS-9163 or ENET-9163 with a C-Series module plugged in. I can find the device in Measurement & Automation Explorer but when I try to add the device ...
How Do I Select Configurations and Resistances of Strain Gauges in My FPGA VI for an NI 9237?
When using an NI 9237 module in an FPGA target, I don’t see a way to specify the resistance of my strain gauges or how to configure the module for quarter bridge ...
Where Can I Find LabVIEW or LabWindows™/CVI Example Programs Specifically for my Hardware?
I am using LabVIEW or LabWindows/CVI and I want to find example programs that will work with my National Instruments hardware.
How Do I Detect an Open Thermocouple Using the NI 9211?
Does the 9211 support open thermocouple detection?  How do I take advantage of this functionality?
NI-RIO and LabVIEW Version Compatibility
Which NI-RIO driver versions are compatible with my version of LabVIEW?
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 ...
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 ...
Why is my RIO Device not Available in LabVIEW or Measurement & Automation Explorer (MAX)?
When I try to view my RIO device in MAX or add it to the LabVIEW project, all I see is . Why isn't my RIO device showing up?

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