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sub millisecond resolution clock in labview
Hi, I've a pretty simple data collection task. I'm using Ni Daq to collect data. Now, I'd like to collect my data every 100ms and store it in a file once the data collection task is done. So, I used...
View ArticleULx usb-ctr04 counting edges until external digital triger
I have this example that countes encoder pulses fine.The encoder generate ~7200 pulses per cycle on one line and has another line that generate 1 pulse each cycleI want to reset the counting of the mcs...
View ArticlecDAQ module for Counter Output
Hi, I am trying to put together a cDAQ system for my experiments. I read that the NI-9178 Chassis has four onboard counters (https://www.ni.com/en-us/support/model.cdaq-9178.html). These counters can...
View ArticleAngle Measurement Using Incremental Encoder and NI-9361
Hi,My requirement is to measure angle using incremental rotary encoder. I have made the hardware wiring and tried to capture angle using NI MAX. The result showing irrelevant values(360 degree rotation...
View ArticlePWM output on cDAQ-9178 Chassis PFI Line
Hi, The front panel of cDAQ-9178 Chassis comes with two built in BNC connectors identified as PFI0 and PFI1. My question is: can I use both of these to simultaneously access two of the onboard counters...
View ArticleFiltering a counter timer signal.
I am measuring a signal that is roughly 50 kHz max. I use a 10 Hz clock from another timer and count pulses in between those clock pulses. When I apply a load (VFD) to the system, I get a high...
View ArticleUSB-6259 pulse count over user defined period
Hi all, Not that clued up on LabVIEW, but my colleague and I are trying to count pulses over a user define period, with a usb-6259. We've written a programme to count the pulses, but now need to add in...
View Article3 Counter Outputs NI 9401
Hello All,I`m trying to send pulse signals from my CompactRIO cRIO-9049 to the drivers of my stepper motors using the NI9401 module.I`ve attached some code that first moves all axis until the limits...
View ArticlePCLe-6321 Counter remains 0 when edge counting with 15MHz edge source
I use PCLe-6321 for edge counting, and I just use Test Panels in NI- MAX, the Counter works fine first, but when I change the source frequency to 15MHz, the counter value always remains 0. Specially...
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[PCIe-6363][counter]a pulse width task with sample clock but do more
Hi! I know the normal pulse width task with sample clock is like this ,which only record the last pulse width before sample clock Then,a implicit pulse width task record all data but can't synchronize...
View ArticleNI 9361 counter configuration pull-up resistor
I recently acquired a 9361 counter and I am trying to make things work on the NI MAX app before I tackle the block diagram. I don't think I am seeing all the configuration options when I click on the...
View ArticleNI 9361 enabling pull up labview property node
Using The DAQmx Channel Property Node, I do not see the options that are listed in the NI article NI 9361 Will Not Enable Differential or Pull-Up Resistor Mode - NI I cannot figure out why I am not...
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DAQmx Counting the number of input pulses with input TTL as gate
Hello, I am trying to realize recording the number of input pulses during each high TTL level input using LabVIEW DAQmx (PXI-6251 + BNC-2110).The input pulses to be counted come from the single photon...
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Counting number of input pulses with on-demand TTL high level input
Hello, I am trying to realize recording the number of input pulses during each high TTL level input using LabVIEW DAQmx (PXI-6251 + BNC-2110).The input pulses to be counted come from the single photon...
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Delay between 2 digital output signals on the USB-6351
Hello everybody,I'm looking for a while how to realize a delay between 2 digital output pulses, with the USB-6351 card.I first made a program to send a signal to the digital output. For that, I used...
View ArticleGenerating more than 4 tight trigger pulses with a PCIe-6321 (X series) DAQ card
I need to generate a repetitive cascade of short trigger pulses which go to 7 different hardware devices, each one connected to a different digital output (or PFI) pin on the PCIe-6321. Basically, a...
View ArticleFlowmeter output acquisition through NI 6008 with python code
Dear, I'm struggling to make a simple python script work.I 'm using a flowmeter sensor (FTB601 from Omega) I would like to acquire the count with the NI 6008 (PFI0 port) to measure the frequency and...
View ArticleNI PCIe- 6612 WinXP compatible?
Hi, For an older project, we tried to build a compatible test setup and thus we need similar interface cards as in the original old setup.I've learned that the old counter timer cards are not available...
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[WinXP] [PCIe-6612] Installation of NI-DAQmx 15.5.1
Hello, I am trying to rephrase my first post. On a very fresh Win XP installation I was not able to install NI-DAQmx 15.5.1, which should be compatible.Here are my error messages:It's german and just...
View ArticleIs it possible to read from the NIDAQ card's clock system using Python?
I'm new to the nidaqmx library, and I was wondering if there is a way to read from the default sample clock in the NIDAQ card? I want to do this to figure out the time it takes to collect a particular...
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