KnowledgeBase Results

Can I Use the NI 9505 Module To Read From an Encoder Without a Motor Connected?
I am developing a motion control application using the NI 9505 motion control module and would like to read from an encoder without a motor connected. I am certain ...
digital.ni.com/public.nsf/allkb/1915D2D7A3ED7996862575D80054D85E
Proper Error Handling Use with the NI 9802
The error inputs and outputs are off by default on the NI 9802.  Should I use error handling with the NI 9802?
digital.ni.com/public.nsf/allkb/DCE843EE5F89F26A4825735900588945
How to Compensate for Different Group Delays with C Series Modules in LabVIEW FPGA
I'm acquiring data from a NI 9215 and NI 9229 in LabVIEW FPGA.  Synchronization between channels is important to my application. When I feed the same signal into ...
digital.ni.com/public.nsf/allkb/74EB238E1BCADD528625735300681A7D
Why Do I See Voltage Offsets in NI 9237 Acquisitions When Connecting Additional Strain Sensors?
While measuring strain from a channel on the NI 9237, if an additional strain sensor is inserted into an available channel on the module it may cause other channels ...
digital.ni.com/public.nsf/allkb/57BEE29D9B9331BE482573530078D386
Unexpected Delay When Using DAQmx Analog Start Trigger
When I use a DAQmx analog edge start trigger with an M Series DAQ device, my program appears to last 250-300ms longer than when I do not use an analog edge start ...
digital.ni.com/public.nsf/allkb/AF8AA09A3323B0B38625734F00496E02
Why Does My CompactRIO Controller or Single-Board RIO Not Show Up in Measurement & Automation Explorer (MAX)?
I have a CompactRIO controller or a Single-Board RIO that I am attempting to configure in Measurement & Automation Explorer (MAX), however it is not showing up under ...
digital.ni.com/public.nsf/allkb/ABE4BC247E8AC9BC8625734E005CAB42
Metal and Paint Materials Used in CompactRIO Components
What metal and paint materials are used to build CompactRIO components?
digital.ni.com/public.nsf/allkb/8171B88F5942E90A86257346007CB77A
Can I Interface with Two CompactRIO StarFabric Controllers Using a Single PXI-8310?
The PXI-8310 that is used to interface with the cRIO-9052 StarFabric controller has two channels for communication. Can I utilize both of these channels to simultaneously ...
digital.ni.com/public.nsf/allkb/A733C7A87171B4B2492573400071F79A
Is There a Size Limitation for USB Devices That Are Supported on VxWorks CompactRIO Controllers or cFP-2220 Controllers?
I would like to know if there is a size limitation on the supported USB devices for VxWorks CompactRIO (cRIO) Controllers and cFP-2220 controllers?
digital.ni.com/public.nsf/allkb/6B33CE34CA6B3BBD4825733F0055E234
Advantages of the NI 9237 Over the NI 9219 in Strain Measurements
I will be using CompactDAQ or CompactRIO to acquire data from a strain gauge.  My two options for modules are the NI 9237 bridge module and the NI 9219 universal ...
digital.ni.com/public.nsf/allkb/3F3165FE0709B8B38625733E007D7C55
How Can I Use Scan Engine and FPGA Simultaneously on a CompactRIO (Hybrid Mode)?
I want to use some of my cRIO modules in Scan Mode and some in FPGA Mode.  There is no explicit option to do this in the chassis properties.  How can I do this?
digital.ni.com/public.nsf/allkb/0DB7FEF37C26AF85862575C400531690
Is the NI 9481 Relay Module Normally Open or Normally Closed?
I have the NI 9481 4-Channel Relay and in the specifications it says the relay type is single pole single throw (SPST), however it does not specify if the relays ...
digital.ni.com/public.nsf/allkb/8725AFE7FC1067968625733A005CA483
Why is My DMA Transfer Slower on the Secondary Ethernet Port of My cRIO-9074 Controller?
I am using a cRIO-9074 embedded controller to communicated with my PC host using direct memory access (DMA) over Ethernet.  It seems like data transfer is slower ...
digital.ni.com/public.nsf/allkb/DD3FCFDE0A3AB95886257328005D54BE
What is the Correct Driver to Use With My NI 9213 Module?
What is the correct driver to use with my NI 9213 module?
digital.ni.com/public.nsf/allkb/67B091E1094EAA0B862575B40067AC86
Why Do VxWorks Targets Not Honor New Daylight Savings Time Rules?
In 2007, the start and end dates for Daylight Savings Time (DST) changed. Since then, my VxWorks-based controller (such as the CompactRIO (cRIO) 901x series) seems ...
digital.ni.com/public.nsf/allkb/7E5CB910B1685C8B8625731A005FCB62
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
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
Why is There Skew Between Output Lines on the NI 9403?
When I view the outputs on my NI 9403, I notice there is a skew. Is this expected behavior of the module? If so, why does this skew occur?
digital.ni.com/public.nsf/allkb/9C7F202AC28A69D2862572FD00704A0E
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 ...
digital.ni.com/public.nsf/allkb/F69C68FCCD7A9CD0862575920077824A
LabVIEW Runtime error in MAX when accessing a cRIO-901x with LabVIEW Real-Time 8.5 from MAX 4.2.1 or earlier
When attempting to expand the Software tab in MAX on a cRIO-901x I get several error message for my controllers that have LabVIEW Real-Time 8.5 installed. One of ...
digital.ni.com/public.nsf/allkb/1584D952E54ABB59862572F7006F3438
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 ...
digital.ni.com/public.nsf/allkb/E0E0DD4269AA10068625758B0013F648
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
Compact RIO 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 ...
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
Using the SMB Connector for Digital I/O or Drift Compensation on cRIO-901x and 9074 Controllers
The Operating Instructions manual for cRIO-9012/9014/9074 controllers states the following:"The software that supports GPS drift-correction and other digital I/O ...
digital.ni.com/public.nsf/allkb/173D82D2BFAAEA12862572D1006098B4
How Does Automatic Network Configuration Work on cRIO-9073 and cRIO-9074 CompactRIO Controllers?
How do I configure the IP and other network settings of a new CompactRIO 9073 or 9074 controller?
digital.ni.com/public.nsf/allkb/37C790309A210A748625757000570938
Thermistor Measurements Using the NI 9219
Can the NI 9219 be used for thermistor measurements?  Is this a recommended configuration?
digital.ni.com/public.nsf/allkb/5A431D7AA362FF578625756F006EBAA7
The NI 9217 and NI 9219 2-Wire RTD Support
The Operating Instructions for the NI 9217 and NI 9219 both explain how to connect and measure from a 4-Wire RTD and 3-Wire RTD. Do these modules also support 2-Wire ...
digital.ni.com/public.nsf/allkb/09E99F60C481D613862572C300637341

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