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Control Stepper Motor while Reading Encoder
Hello, I'm attempting to generater a pulse train to control a stepper motor driver, and in parallel read in the pulses from the encoder of the motor. I've been able to create two seperate vi's that...
View ArticleArray with timed counter
I have this problem where my data comes from the cRIO in FPGA mode and sent to a cluster then converted to an array, the array has 4 values and I need to apply a timed counter so I can take wheel speed...
View ArticleDigital Input and Counter now working together
I'm working on a project that requires me to take in the inputs from an optical encoder and control the outputs of the DAQ that I am using (NI ELVIS). From what I can tell the NI ELVIS is incappable of...
View ArticleNI USB-6351 X Series and encoder question
Hello, I read documents and threads about encoder integration with NI devices, however I would like to have a confirm. Can I connect a Line Driver encoder to a USB-6351 X Series board? The encoder is...
View ArticleUse NI USB-6211 to count TTL rising edge
Hello, I am new to NI-DAQ cards, and so before buying anything would like to know if it is possible to use a NI USB-6211 deviceto count and bin rising edges of an TTL signal. What I want to do is count...
View Articleusb communication break problem
Hello, I use CNT-90 timer/counter/analyzer. I communicite with usb port with NationalInsturements.VisaNS dll.You can see following c# code for usb communication. string resourceName =...
View ArticleCounting pulses and measuring flow rate per second
Hi everyoneI am using a compactField Point (cFP-2220) controller to measure the flow rate. The flow sensor that i have, gives the output in terms of the pulses. I need to count the number of pulses for...
View ArticlePCI 6602 card not able to generate frequency
Hi, I have PCI 6602 counter/timer card installed in my system. I am able to detect the card my system in MAX.I am also able to pass the sanity checks and get to test panels.Whenever i generate a pulse...
View ArticleGate two retriggered counters using a seperate counter
Hi everybody, please let me explain my setup (PCI 6602) in a few words:I have a light barrier, a flash lamp and a spectrometer. The light barrier measures the frequency of my device continuously and...
View ArticleTime stamping photon arrival times
I would like to do a two-photon cross correlation measurement. Hardware auto correlators and cross correlators are available but expensive. It seems many other users have come up with the idea of...
View ArticleHow can I read a counter value for two edge separation before counter is...
I am using a 6602 counter timer/board with DAQmx. I am using the two-edge separation counting available through DAQmx. The counting between the two edges works properly, however I do not know how to...
View ArticleTime domain plots-problem with setting the time counter
Hi, I need to control a signal generator and a vector network analyzer using labview. I am sending a signal from signal generator and measure transmission from VNA. I want to plot voltage vs time at...
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How to count the pulses of an incremental encoder with PCI-6010?
Hi everyone, I am trying to use an incremental encoder and PCI-6010 card to measure the speed of a rotary shaft in Labview 2011. I need to use the counter to count the numbers of the pulses that the...
View Articlepython DAQmxReadCounterScalarU32 error -200230
Hi all,I'm using Python 3.2 and NI-6521 board.I try to count the number of rising edges of my signal when i click on a start button but i always have the error code -200230.My program is the following:...
View Article9401 counting erroneously from quadrature encoder
I'm using a 9401 module in a 9188 chassis to measure position of a shaft in 1E6 count/rev. The signal is an emulated AQuadB out from a Kollmorgen AKD servo drive. My problem is that when the drive is...
View ArticleHow can I use a 6341 to provide a hardware clock to a program (ie 1 Second ).
I want to acquire a temperature reading from a 6341, at a 1 second rates.
View ArticleDoes the accuracy of a PXI-6602 improve with a PXI-6608 in slot 2 driving...
Can I improve the accuracy of a PXI-6602 module in slot 3 of my PXI chassis if I use the OCXO clock of a PXI-6608 in slot 2 to drive the 10MHz backplane clock of my PXI chassis? If so, how is it...
View ArticleHow To output the PXI-6608 OCXO to PXI_CLK10_IN
Hi!I am trying to make high accuracy measurements with the PXI-6608.I am using a 3rd party PXI backplane which has no StarTrigger slot that would override the PXI_CLK10 automatically with the PXI-6608...
View ArticlePWM with CompactDAQ 9174 on a DO-Module
Hi all We did a regulation of peltier elements with PWM with a cRio over FPGA on a DO-Module 9477. We have now a small project with a CompactDAQ 9174 where we would like to regulate such peltier...
View ArticleUSB 6210 - how to divide down counter input for analog timing source
Hi all, I've got a problem with my USB-6210 configuration.I'm kind of new to DAQMX, thus I don't know how to handle this. I've got a setup running, which uses CNT0 from the USB-6210 to read an encoder...
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