Voltage threshold selector / discriminator in labview.
I have a NI pCI 6024e daq card which im usinf with labview 2010 and daqmx. I have a system which outputs pulses which i have to count using my counter. But the signal has noise in the sense that...
View ArticleNI9178 trigger delay
Hello, I am currently using a cDAQ NI9178. I use an external trigger (5V connected to the PFI0 port) to start the simultaneous acquisition of the NI9212 and NI9215 that I have on the chassis. Is there...
View ArticleSynchronous sampling of analog voltage and digital encoder
My setup involves the cDAQ-9185 Chassis and NI-9401 and NI-9220 modules.My intent is to have high frequency (2 kHz) sampling of analog voltage channels on NI-9220, and to have position encoder sampled...
View ArticleNI-9361 and Signal Manipulation (Debouncing Signal)
Greetings, I developed a PCB which was a pulse counter for measuring period/frequency of a square wave. We're looking to use the NI-9361 as a pulse counter to tie it into another engineers system whom...
View ArticleStart a Count Edges task with a hardware trigger PCI-6122 or PCIe-6353
Hello, I need a Count Edges started with a hardware trigger, but I get an error -200452 that Start.TrigType is "not supported by the device or is not applicable to the task". Tried this on a PCI-6122...
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PXI-6624 Counter/Timer Module Connection
Hello Everyone,I have a PXI-6624 Counter/Timer Module. This is User Manuel link.According to user manuel, input-output connections and pin assignments are shown below. I want to read PWM frequency and...
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How to out signal by 2 counters at the same time？
how can i use Counter 0 and Counter 1 to out two different freqency signals at the same time?Using counter 0 can workUsing counter 1 can workbut counter 0 and counter 1 can not work at the same time
View ArticlePCIe-6323: Enabling digital filtering on a counter input in VB.NET ?
Dear all, I am trying to count digital pulses generated by a volumetric gas counter using a counter input of my PCIe-6323 card. Unfortunately, there are multiple noise sources in the environment and I...
View ArticlePWM Output
Hello! I'm trying to use an NI 9474 module for PWM output. Using a cDAQ-9179 chassis with the following other modules: NI 9229, NI 9239, NI 9239, NI 9214, NI 9403, NI 9263.I get error -88708 when I...
View ArticleSampling at 1000 S/s with a NI 9237 module
Hello,I have a cDAQ 9185 chassis with a NI 9237 module. The manual for the 9237 states that the lowest possible acquisition rate is… “down to 1.613 kS/s depending on the value of n. When using an...
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DAQmx update frequency and write a second pulse
I have modified an example vi (counter - finite output) so that it generates a single pulse. After writing this pulse, I would like to change or update the frequency and write a second pulse. I have...
View ArticleTime in Excel
i want to save the time in ms every 100ms in excel file in labview 2012. I'm using Write delimited spreadsheet. but the problem i only get the final time, When i stop the simulation. can anyone help me...
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NI MAX Sample Clock Settings
HelloI am using the bridge module ni 9237 along with the NI cDAQ 9185. While creating a task on NI MAX, i want to configure the sample clock settings.I have the option to choose between internal or...
View ArticleTiming synchronize options between PXI E series and X series module
Hi, I have a PXI-4496 and PXI-6723 card attached into the PXI 1033-chassis, and I was attempting to synchronize the timing between these two card through sample clock synchronization (PXI-6723 as...
View ArticleUse PFI1 as counter on USB-6002
I have successfully used PFI0 as a counter input on my USB-6002, with C# :- task.CIChannels.CreateCountEdgesChannel("Dev1/ctr0", "Count Edges", CICountEdgesActiveEdge.Falling, 0,...
View ArticlePTP synchronization of a PXIe-1078
Hi, I am trying to implement PTP sychronization on my PXIe-1078 chassis using a PXI-6683H timing module. I have read the NI article...
View ArticleSimultaneous pulse generation and edge counting with PCI-6221 - python scripting
I am trying to use a PCI-6221 board to have a clocked counter. The idea is to generate a finite train of pulses from ctr1, hardwire this output to a given PFI (PFI7 in my case .. I understand that it...
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How to set counter input source, gate and output
I am trying to route the internal timebase 20 MHz clock as an input to a counter source on a M series PXI - 6289 card as shown below: I want to also use a trigger to the gate to generate a 10 MHz...
View ArticleThe use of double counters in photon counting to avoid dead-time
This is less of an issue with regards to the measurements and more of a "what's the idea behind it?" . In Hamamatsu's Photon Counting Unit, the C9945-13 series, they reference double counters to allow...
View ArticleCounting time between two impulsion of two signals with NI-USB 6009
Hello, I want to do a program that can count time between two impulsions of two different signals and acquire those signals with the input of a NI-USB 6009. How can I do? I want to display this time...
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