How to filter starttrigger on counter output precisely
Hi,I want to visualize 8 MHz counter clock on one of digital input line. For this I generated 8 MHz clock using counter 0 which is default output on PFI 12 line. This PFI 12 i have connected to one of...
View ArticleANDing ORing counter arm start triggers
I am using a 6602 PCI to collect an array of time stamps of pulses using DAQmx.dll i.e. .NET. c#. In order to synchronize the 2 encoder tasks data for comparison, I create a "starter" task that is...
View ArticlePlotting PWM for 0%DC and 100%DC from PCIe-6323
Hardware Used: NI PCIe 6323OS: WindowsApplication: Homegrown custom Application from Danlaw : MxSuite Goal : To plot PWM values of a 244Hz PWM signal.Description: We are trying to plot Duty Cycle of...
View ArticleNI FPGA
Hello everyone, am designing a basic counter on the NI FPGA platform to work on the Basys3 FPGA board. I did the design schematic on the Multisim PLD design and when I simulate it works fine. However,...
View ArticleFrequency divider and sine wave generation
Dear all,I'd like to ask a short question to1. receive external TTL clock at 233 kHz through a counter input,2. divide its frequency by 103. and generate a sine wave at 23.3 kHz that is synchronized...
View ArticleNI 9401 running multiple Large Range with 2 counters
I'm using a NI 9401 to measure two counter flow meters, which operate anywhere from 2kHz to 20kHz. I'm using Large Range, but would like to use just 1 NI 9401. My understanding is ctr 0 is paired with...
View ArticleProblem with frequency measurement using NI 9401 module
Hi Everyone, New to this board, I'm having a couple of problems in our labview development. A bit of context : we're trying to do some data acquisitions and display on some analog inputs (Pressure...
View ArticleBackground influences performance while doing frequency measurement using NI...
Hi All,As a part of a bigger VI i've had some performance problems and did a teardown trying to solve it.I discovered that the reading of frequency pulses, using a counter with NI9401 (slot 5) +...
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Problem running NI 9401 for counter input and output
Hi, I am using 2x 9401 modules with a NI cDAQ 9174 on Labview 2018, and am having trouble configuring these modules for both input and output. Below is the code I have been using. Whenever I run the...
View ArticlePCI-6602 and GPIB-USB-HS+ compatibility
I had a hard time choosing the location of this post because it deals with the counter/timer and instrument control. I installed the PCI-6602 driver and I could interact with the timing card by opening...
View ArticleHow to trigger or start two counters
Using a USB6212 M series, I have two quadrature encoders feeding into the two counters. I use the freqout source to provide a 6250Hz clock signal for both, and run continuous sampling of the fifo at...
View ArticleMeasure time between rising edges of two analog signals
I am trying to measure the elapsed time between rising edges of 2 analog signals, in real-time using DAQmx and a PCIe DAQ card. The two-edge separation function of a counter can do this very easily but...
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use counter to control many channels in microsecond
Hi Everyone,i wanna use one (or more) counter(s) to control for example 10 channels. The first target is, that every channel can output a digital signal one by one every 10 microsecond. And second is,...
View ArticleMultiple periods / pulsewidths with cDAQ-9139 + NI9361 + 2012 LabVIEW
I am trying to use one of my cDAQ-9139’s with an NI 9361 and 2012 LabVIEW to measure 4 things: the (1) period and (2) pulse width of a signal from a 3-wire PNP proximity switch and the (3) period and...
View ArticlePulse output flow meter convert to gallon per minuted
I have 4 pulse output flow meters https://www.omega.com/pptst/FTB4600.htmlall the flow meters connected to NI 9361 to get my frequency readings using the daq assistant. I will need convert my frequency...
View ArticleFinite Pulse Train Generation - Exceeding Counter Limits
I have an application where I am using 1 counter as a master clock for 4 other counters, in order to generate 4 synchronized signals. The idea was that by controlling the master clock, I can easily...
View ArticlePCI-6221 Frequency Measurement
Hi all,I am currently trying to create a vb program to create a task to read a 0-5V TTL signal from my sensor and read the frequency of the signal continuously. The frequency will be dynamic so I cant...
View ArticleUsing quadrature encoder with callback function
Hello hello,I have a rotary encoder (A-B signal) hooked up to a DI module (NI 9423) and I want it to be my source for a callback. This encoder measures distance and I now want to enter a callback...
View Article测量PWM信号占空比及高低电平时间
大家好， 我需要测量一个传感器的信号，这个传感器输出频率为200HZ, 最低电压为4.8V，最高电压16V的PWM信号，我现在需要测量这个PWM信号的高低电平时间，并计算出占空比，目前产品选型，发现PCI接口的采集卡，仅NI 6624可支持达到48Vdc的电压输入， Voltage Voltage range...
View ArticleExternal digital signal to synchronize sensor sampling
Hello everybody i am new to LabView, DAQmx and Ni Hardware and i am currently trying to set-up a measurment routine for a university project with industrial robots. I have several sensors which operate...
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