DAQmx and State Machine
Hey all,I am developing a State Machine in which I need to run four different tasks1. Generating a Analog Output Voltage2. Generating a Digital Output3. Generating a Continious Digital Train pulse...
View ArticleOn demand sampling with sample rate
Dear community, I'm relatively new to NI and it Python API, so bare with me. I'm working on the control of a tank system. In the pas,t I used a NI card in the computer and on demand measuring to get...
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Voltage Spikes in externally triggered analog voltage acquisitions
Hello, I'm trying to use a Triggered counter as a clock source for an analog voltage acquisition. I used the Multi-function-Ctr Retrig Pulse Train Generation for AI Sampleclock.vi as my template. It...
View ArticleDAQmxReadCounterF64 execution time
Hi, all, I am trying to test the example code atExamples\DAQmx ANSI C\Counter\Measure Digital Frequency\Dig Freq-Buff-Cont-Large Range 2 Ctr I changed the original code DAQmxErrChk...
View ArticleFrequency measurement NI 9401
Hello everyone, I´m sorry to create a new subject, i tried to find solution by myself everywhere, but with no success. Iˇm trying to read a frequency with NI9401 and cRIO.After i will set 800Hz on...
View ArticleBrushless DC motor Tacho measurement cDAQ-9174
Hi Folks, I’m trying to monitor the speed of brushless DC motor (Thomas 1410 series 12v). using a cDAQ -9174 chassis.The motor runs as expected but when I attach an oscilloscope to the Tacho output I’m...
View ArticleTrain pulse generation - USB 6211 - in MATLAB
Hi everyone, I am trying to setup the USB 6211 DAQ to trigger a pulse train used to activate camera video acquisition (the freq might be 30-40 Hz).I am using the following code ch1 =...
View ArticleEdge counting & pause trigger
Dear all, Hello, can I ask a question about pause trigger & edge counting?I'm using USB-6212, python 3.7.6, windows 10, NIDAQmx 19.6 and PyDAQmx1.4.3(Please let me know if you have any idea not...
View Articlemisura velocità da encoder
Salve, ho un'uscita dal mio torsiometro TTL 60tache/giro.Velocità massima 18.000 rpm ... quindi 18000 count/secMi servirebbe una scheda che abbia almeno 100k samples/s per stare tranquillo La NI 9411...
View ArticleMeasuring speed
I have an apparatus that rotates. It has an optical sensor interrupted twice/rotation. I want to measure the speed of a rotation. Hardware: NI-9402LV2019 I am not sure exactly what the data is coming...
View ArticleReinciar un contador
Hola, hice un contador de segundos con la funcion Tick count, por que tengo una secuencia que funciona en determinados tiempos (30,32,35,50) y luego se reinicia, el problema es que no logro reiniciar...
View ArticleHigh sample rate counter acquisition (and understanding the datasheet)
I have an application that requires some very high resolution data reading from a PCIe-6612 card (or other, if this card is insufficient). I have done high speed analog before but not high speed...
View ArticleRetriggerable single pulses -- EXACT behavior of initial delay, low time/ticks?
While I had access to actual X-series hardware (PCIe-6341) this weekend, I followed up a little on a thread I was in to try to make sure that my proposed approach could work if there was a need for...
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TTL trigger signal (CO) using USB-6001 DAQ card
Hi, I have a running setup with different counter outputs and synchronization using PCIe 6353. I now want to copy a very simple part of the code/application, which basically just sends a TTL signal to...
View ArticleMPLAB
Hola! Tengo que realizar un proyecto en el cual tengo que programar un código en el programa MPLAB. Se trata de un proyecto sobre sistemas electrónicos digitales y querría saber si alguien sabe donde...
View ArticleCounting device suitability
Dear LabView community, I am currently working on a project using a photodiode that will output a pulse train. As a first approach we are simply interested in the amount of pulses in a certain time...
View ArticleCounting output pulses
Hi all, I’ll precursor all of this by saying I’m not particularly experienced with DAQmx and NI instrumentation, so please bear with me and feel free to point out anything obvious you think I may have...
View ArticleCounter Output Pulse Terminal
The attached screenshot is running correctly, if I run this code once. After closing the task, I call this again with CO.Pulse.Term = /6363/PFI4.The strange thing is that the pulses will still be on...
View ArticleInput clock on PFI line
I'm using a NI PXIe/PCIe-6535 and I need to receive a clock signal (external clock signal) but I ran out of PFI lines for this signal but I still have Data lines available. Is it possible to receive...
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Writing to DAQmx Channel does not update phisical channel on DO card
Hello guys, I have created a program to control a valve with PWM signal. Here I create and run the task: And here I change the pulse width:I can see, that the Pulse Width property does update, but on...
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