9401 line direction configuration in LabView
I use NI 9401 to measure a quadraure encoder. and i want 9401 to output 5VDC to drive my encoder. How to set the line direction for each port on the 9401 in Labview?
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Hello everyone, I'm working on automating the capture of voltage, temperature, current and irradiation in a photovoltaic panel. The program design is done, where enters the four values to obtain the...
View ArticleHow to control two USB 6501 simultaneously
Hi,I am trying to measure two signal by using two counters of different NI USB-6501 device. The problem is that they measure one after another so I loose half of the time. Can anyone please help me so...
View ArticleHow many PID loops could I run on cRIO RT?
Hi, I am trying to create a temperature process controller. I have 3 RS232-enabled OMEGA mass flow controllers, 12 thermocouples, 6 heaters (that will be connected in sets of two), and 3 PWM-enabled...
View ArticleSingle pulse output and LED indicator
With the Single Pulse Output.vi example (accessed from DAQassistant), used with a SIMULATED NI DAQ 6323 and set to the following parameters on the front panel: Dev2/ctr0NO trigger (presumably meaning...
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Using the 6525 counter to measure frequency: is there a neater way?
I'm currently using the high speed counter on the a USB 6525 module to measure the frequency of a spinning object via a hall effect sensor. I was wondering if there was a simpler/ more effective way of...
View ArticleDelay Trigger Doesn't Work for Time Required - Error Msg
Hello, Operating with: X Series 6351 USB DAQ, Windows 7, Labview 2013 SP1Relative newbie, but not completely. Have completed Self Paced Training Core 1 and created a data processing VI for R&D...
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Logical "OR" with 2 counters
Hello,i need to produce complex signal (attached as image), the signal is a logical "OR" operation of 2 pulse trains, are there any option in labview to produce such signals with PCI-6602 board? ---Thanx!
View ArticleSynchroneusly start an analog in task and semi period measurement task in X...
I am trying to synchronize analog input with timestamps for all edges produced by an encoder. In the DAQ M Series that I was using before, this was nicely achieved as follows: A counter input task is...
View Articlecan I generate a trigger with counter out put?
Hello, I will be using a digital trigger (0-10V) as a gate for my counter out0 and a 100MHz timebase clock as my source for counter out0. I want it to generate finite pulse train or contineous pulse...
View ArticleNI 6602 frequency change How to
Hello! I would like to use the NI 6602 Counter in other frequency base than 80MHz, I have read about it, but still couldn't figure out how to do that. I know that I need an other counter to set the...
View ArticleSynchronization issues on USB 6341
Hello, Before I get into the problem that I'm seeing, I'll start off by describing what I want to do. I have the USB-6341 X Series DAQ and two photon counting head PMTs. I want to bin and read the...
View Articlefrequency multiplication on 6602
I am doing frequency multiplication with NI 6602 counter (see attached picture LV 2011 snippet):Ctr0 is triggered by external clock with measured period (say 50 ms, 20 Hz). Ctr0 task is retriggerable,...
View ArticleSquare waveform generator
Hi, I want to make a continuous square waveform. there are some samples and files online to do so, but I'd like to be able to change the frequency of waveform continuously, I mean something like a...
View ArticleHow to trigger automatic input data changes
hi I am very new to labview, as a part of an experiment i need to control an agilent N6700B mainframe voltage controller using labview. I had established all the comm using GPIB . At the moment I am...
View Articlepxi 6602 pulse generation
Hi i am new user and i got pxi 6602 iwant to generate a 5 khz 3.5ms 2.5 amplitude and 2.5 offset i probably need to use 2 counters can someone tell me which wires i need to connect on scb 68 device and...
View Articlevoltaje de pulsos para contador NI USB 6009
Hola a todos, tengo un problema con un Encoder y mi tarjeta NI USB 6009. Tengo que contar las RPM de un motor, en encoder se alimenta de 12V y los pulsos o señales las entrega en 12 para nivel alto y...
View ArticleHW Timed Single Pulse generation speed
Hello! I'm looking for a recommendation on how to speed up a counter pulse generation. Currently I am generating a clock tick using a counter, and routing this counter through the PXI back plane and...
View ArticleAnalogue Signal Pulse Count
I am using CDAQ with a NI9229 4 Channel analgoue input card. I have a sensor that outputs an analogue 5v square wave signal. The pulses are triggered from eithe a north or south pole of a magnet. I...
View ArticleMeasurement of frequency ramp over fixed time
Hello, firs, my setup:LabVIEW 2013 + Sound & Vibration SuitecDaq 9172NI 9423 DI (frequency via Keyence LED Light sensor)Ni 9215 AI (vibration vie 3-axis force sensor) With this hardware, i want to...
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