NI 6608 timestamp TTL signal
Dear all, I am currently trying to figure out how to timestamp each rising edge of a TTL signal. I have a magnetic rotary encoder with 1024pulses per revolution, outputting 2 TTL signals and a...
View ArticleLinux NTP/PTP timestamps
Hello, I have a 1095 PXIe Chassis and 7972R FlexRios. I am trying to get a RHEL computer to decode a timestamp. I know windows does this with the 6683H module, but is that is unsupported in Linux. Are...
View ArticleHow to measure pulse width from a signal that is switching ground?
I need to measure pulse width on automotive injectors. The trouble is that the ECU switches the ground side, not the high side. When we connect the injector signals to the counter timer board, in...
View Article9411 Cabling - Impedance Matching
What is the recommended characteristic impedance of the cable used to connect a sensor to to the NI 9411's differential DIa/DIb channels? Would either 100 ohm or 120 ohm be appropriate?
View Article6602 6612 differences
I have a project using a 6602 PCI to collect 2 arrays of time stamps of pulses from 2 encoders using DAQmx.dll i.e. .NET. c#. In order to synchronize the 2 encoder tasks data for comparison, I create...
View ArticleRoute Internal Clocks to PFI lines
I am trying to route an internally generated clock to various modules (6674T and 6584 specifically) via their PFI or clock lines. I tried using NI-sync for the 6674T to no success. I tried doing whats...
View Articlepulse output at 1 sample or burst at once for uniform pulse train generation:...
hello,for counter output to drive a stepper motor which option is better.1. to generate 1 pulse at a time in a while loop with a rate defined by ms delay vior 2. burst of pulses at once if we use...
View ArticleDriver issues after upgrading to Windows 10
We recently had to upgrade our experimental control computers to Windows 10, and I'm having issues with devices not being detected ever since the upgrade. Screenshots of NI-MAX and the Device Manager...
View ArticleNeed a simple program (example?) for NI9361 to capture frequency at 1-second...
Any advice? The NI examples are anything but simple to a LabView beginner, due to my lack of understanding the MANY tools being used in those examples. Something simple is needed: continuously read...
View ArticlecDAQ 9174 CtrlInternalOutput duty time
Hi everyone,I am new to the LabVIEW coding. I have a application for analog data sampling with cDAQ 9174, NI 9401 and NI 9215 programmed by my former colleague. In this app, he set the rate and duty...
View ArticleNI USB 6221 Counting
Hey everyone,So we are looking to get an NI USB 6221 for a project. The idea is that we want to use it to read the data coming out of a photon counter (in the form of TTL signals), at a rate of 10mHz....
View ArticleDuty cycle measurement using NI DAQ USB-6003. (Help needed with C coding)
Hello, I am a beginner using DAQ and my objective is to read absolute rotary encoder PWM output signal. Currently I have got NI DAQ USB-6003 which has only one counter and two PFI-0,1 channels. My...
View Articlestart and stop of counter output
hi, is there anyway to start and stop counter output after specific time without using DAQAssistant. i am using DaqAssistant to start a counter.e.g, from 1 to 4 sec Counter out in on and from 4 to 8...
View ArticleTwo pulse trains, one with delayed time
Hi, I am trying to get two pulse trains using VI I attached here. I am able two produce two pulse trains but the amplitude of one is very low (0.2V) than expected. Can you please help me how to get...
View Article1-D Boolean array to be used as a Pause Trigger input of a counter
Hello everyone, The issue that I have is I couldn't find an efficient way of creating a custom digital signal to feed the counter's gate input. I'll elaborate the problem later but first here are the...
View ArticleRESET ESCAPE TIME ON WHILE LOOP BY USB - 6525
Hello.I have problem with sequence loop. First start(USB-6525) while loop program run complete when I start(USB-6525) run again program start run normally but escape time is not reset. I need reset...
View ArticleData acquisition using FPGA in a while loop
I am currently trying to read from and encoder using a SEA 9521. The encoders datasheet states the kind of timing that needs to be done with variables iI am not quite sure how to figure out. Attached...
View ArticleNI9401 counter port is interferenced by NI9482
NI9401 is used for calculating encoder signal, but when NI9482 is activated to control 220Vsolenoid valve, there are a lot of noise are found in the NI9401 port while the encoder signal isn't...
View ArticleCounter/Timer device PCI-6602 output frequency.
Dear Community, I am in the process of building a HIL (Hardware in the Loop) setup to test Automotive ECU's. I am currently using Simulink Real Time R2016B to do this. I need to generate a crankshaft...
View ArticlePXI-6612 Max frequency counter
Hello everyone, I have a question about NI PXIe-6612 frequency counter card.I saw on datasheet that we can measure 80MHz frequency on one input but is it possible to push it further? I mean to measure...
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