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?
digital.ni.com/public.nsf/allkb/C18C172029D187CA8625741600664D89
What is the Correct Driver to Use With My NI 9213 Module?
5 ratings:   4.20 out of 5      Rate this Document What is the Correct Driver to Use With My NI 9213 Module? Hardware: CompactRIO>>Analog Input Modules>>NI 9213 Problem: What is the correct driver to use ...
digital.ni.com/public.nsf/allkb/67B091E1094EAA0B862575B40067AC86
NI 9219 Reads Zero Volts at 60 Hz
I am trying to read a 60 Hz signal from my NI 9219 but it is only reading zero volts.  Why is this happening?
digital.ni.com/public.nsf/allkb/53104A2E0B6A7133862575A8007E5437
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 impedance of the NI 9237?
digital.ni.com/public.nsf/allkb/01933E0A64F04211862573FD005D992F
How to Read the Internal Autozero Channel of an NI 9211 in CompactDAQ
I would like to check what the internal autozero channel is reading on my NI 9211 in CompactDAQ.  How can I accomplish this? 
digital.ni.com/public.nsf/allkb/F3B03160D4E3AB64862575A500793B36
Is the Ethernet Port of the CompactRIO (cRIO) 9004 Controller Isolated?
This Document is not yet Rated   Rate this Document Is the Ethernet Port of the CompactRIO (cRIO) 9004 Controller Isolated? Hardware: CompactRIO>>Controllers>>cRIO-9004 Problem: Is the Ethernet Port of ...
digital.ni.com/public.nsf/allkb/6F62A49EE22C8C19862573FB0013CC47
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 to using them in a different CompactRIO ...
digital.ni.com/public.nsf/allkb/15C5F7965BAB3748862573F600824D90
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?
digital.ni.com/public.nsf/allkb/5A30CD178637BFA5862573F700003BAD
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 I/O of the modules on the cRIO expansion ...
digital.ni.com/public.nsf/allkb/76240748163E2D33862573EF003ADB98
cRIO DE-15 Issue Can Cause an FPGA to Freeze or Lock
The Front Panel of my FPGA VI locks every time I try to access one of the modules.  There are no errors reported and the only way to unlock the Front Panel is to Abort the VI.  The VI runs without locking ...
digital.ni.com/public.nsf/allkb/F69C68FCCD7A9CD0862575920077824A
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?
digital.ni.com/public.nsf/allkb/2C4C52B37819F838862573E20055F037
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?
digital.ni.com/public.nsf/allkb/7829D061AB7EF7F1862573E100702A2C
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 the data to engineering units in software. After ...
digital.ni.com/public.nsf/allkb/254BBC14267D2972862573E000824912
How is it Possible to Use a Derived Clock Rate Higher than the Base Clock in LabVIEW FPGA?
I know that the Base Clock on my cRIO FPGA is 40MHz. What is happening when I create a derived clock that is higher than or a non-integer multiple of the Base Clock?
digital.ni.com/public.nsf/allkb/078E24416C05D7388625758D00799CBE
How Do I Reduce the OS and Driver Memory Footprint on My Real Time Controller?
My Real-Time controller (sbRIO, cRIO, or RT PXI device) has 64 MB of non-volatile memory and only about 21 MB of this is available for my program. The other 43 MB is used for the OS and drivers. How can ...
digital.ni.com/public.nsf/allkb/E0E0DD4269AA10068625758B0013F648
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 between the types of electrical ...
digital.ni.com/public.nsf/allkb/CF71091043A6193B862573D70077138B
Can I Access the Counter Output Signal with the NI 9481/9485?
The manual shows that the NI 9481/9485 modules have two counter outputs. Why am I not able to see a pulse train signal generated when I use these counter outputs?
digital.ni.com/public.nsf/allkb/606CC81173F909888625758600756B6F
How Can I Perform Pulse-Width Modulation with an NI-9401 Using the Scan Interface?
Is it possible to configure the NI-9401 to perform pulse width modulation (PWM) under the RIO Scan Interface?
digital.ni.com/public.nsf/allkb/0892C8D55C6D0C0E86257585004FD0B0
How to Wire the Shield Pins of My 9944/9945 Terminal Blocks
This Document is not yet Rated   Rate this Document How to Wire the Shield Pins of My 9944/9945 Terminal Blocks Hardware: CompactDAQ>>Analog Input Modules>>NI 9237 Problem: I see the shield terminal on ...
digital.ni.com/public.nsf/allkb/E14E3FC42DD02FFE862573D30005240E
CompactRIO Controller Support for Drive Letter Access for the 9802 Module
I am trying to mount my SD card on the RT host, but I get the following error message:Support for Drive Letter access to NI 9802 Cards from cRIO-900x Controllers is not supportedWhich controllers support ...
digital.ni.com/public.nsf/allkb/865163C3A71CA2F68625757E007EBD84
C Series Digital I/O Behavior on Loss of Ethernet, Wireless, or USB Connection
If my C Series Digital I/O device (NI-9401, NI-9472, NI-9481, etc.) loses connection with the host controller, what happens to the current output configuration?
digital.ni.com/public.nsf/allkb/D8525AAD0A3ABD3886257577005770C6
How Does Automatic Network Configuration Work on cRIO-9073 and cRIO-9074 CompactRIO Controllers?
15 ratings:   2.79 out of 5      Rate this Document How Does Automatic Network Configuration Work on cRIO-9073 and cRIO-9074 CompactRIO Controllers? Primary Software: Primary Software Version: 1.0.1 Primary ...
digital.ni.com/public.nsf/allkb/37C790309A210A748625757000570938
Thermistor Measurements Using the NI 9219
2 ratings:   4.5 out of 5      Rate this Document Thermistor Measurements Using the NI 9219 Hardware: CompactDAQ>>Analog Input Modules>>NI 9219 Problem: Can the NI 9219 be used for thermistor measurements?  ...
digital.ni.com/public.nsf/allkb/5A431D7AA362FF578625756F006EBAA7
What is the Maximum Number of Samples for Finite Analog Output on the USB-9263?
This Document is not yet Rated   Rate this Document What is the Maximum Number of Samples for Finite Analog Output on the USB-9263? Hardware: CompactDAQ>>Analog Output Modules>>NI 9263 Problem: I would ...
digital.ni.com/public.nsf/allkb/3BC2397A164B8723862573B4007B572C
Why Does My VxWorks Controller Boot Into Safe Mode Unexpectedly?
My cRIO controller fails to boot. After a couple of attempts, it boots into safe mode even with all of the software installed and dip switches set correctly. If I connect a console to the target's serial ...
digital.ni.com/public.nsf/allkb/E7D790B967B086648625756A0055A39D
Does the NI-RIO Additional Installer Include Full Driver Support?
I am trying to build an installer for my application and have included the NI-RIO drivers in the Additional Installers for my build. However, when I install my application, I am not able to see my CompactRIO ...
digital.ni.com/public.nsf/allkb/5E3B871B6A7174038625754E0081C92F
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 measurement.
digital.ni.com/public.nsf/allkb/4E06A09A826895D98625738D006305FF
How Do I Detect an Open Thermocouple Using the NI 9211?
5 ratings:   2.60 out of 5      Rate this Document How Do I Detect an Open Thermocouple Using the NI 9211? Hardware: CompactRIO>>Analog Input Modules>>NI 9211 Problem: Does the 9211 support open thermocouple ...
digital.ni.com/public.nsf/allkb/67E93D764EC9C38086257387004EADF6
NI-RIO and LabVIEW Version Compatibility
13 ratings:   4.76 out of 5      Rate this Document NI-RIO and LabVIEW Version Compatibility Hardware: CompactRIO Problem: Which NI-RIO driver versions are compatible with my version of LabVIEW? Solution: ...
digital.ni.com/public.nsf/allkb/577CC9A7DCFC73DF8625738400116CC3
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?
digital.ni.com/public.nsf/allkb/E2B83549E4EA6EAE8625753D00353CB9

KnowledgeBase Results

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.