NI9401のエンコーダのカウントの同期方法
NI9401にて、インクリメンタルのリニアエンコーダから位置のカウントを測定しています。また、NI9201にて、アナログ電圧（OnboardClockにてクロックを使用して測定）を同時に測定しています。これら2つの信号の同期を取って測定したいのですが、NI9401によるエンコーダのカウントは、1サンプル（オンデマンド）設定でしか測定できなく、アナログ電圧の測定と同期が取れず、困っています。アナログ電...
View ArticleDecrementing counter of encoder reading
cRIO 90539411 moduleWheel encoder GKZ-1000 https://cdn.automationdirect.com/static/specs/encoderhd.pdfPython 3.9.5 with nidaqmx API I can read the counter and see it increasing as I rotate the wheel,...
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How Do I match counter to PFI in NI 9401
Hello,I would like to know which counter corresponds to which PFI in NI 9401I have looked and have not find it in the 9401 data sheet.Thansk!Gil,.
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dealing with vibration noise in encoder readings
Python 3.9CRIO 90539411 moduleAutomation Direct/koyo trd-n5000-rzwd encoder (5000 pulses per rotation, totem pole output)192 mm circumference wheel Now that I have the encoder readings working, I have...
View ArticleGate one counter output with another (NI 6052E)
Hi, I am using a NI 6052E card with Matlab 2020 (with Data Aquisiotin and Instrument Control Toolbox) and would like to use the Ctr0 as pulsegeneration TTL output (e.g. f1=1MHz) and then trigger this...
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how to solve the error of Counter input ( error code 200284)
dear siri use Counter Input channel to detect the pulse signal ,but the CI channel reminds me that the program can not sample all samples,the error code is 200284.could you help me ? and i only can...
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How do I measure RPM from a gear tooth sensor.
Hi I have a NPN type gear tooth Hall Effect speed sensor that produces a pulse (voltage drops to zero then back to the pull up voltage value V) with every passing gear tooth. I want to measure the...
View ArticleEncoder not reading
I'm going to start by saying that I am a complete rookie. I have rarely worked with National Instruments equipment before, and the only time I had the system was already set up. I am currently trying...
View ArticleAngular Encoder Position measuremeant N Samples doesn't start at zero degrees
Hello Labview Community, I am trying to implement a measurement setup where I use two ABZ-Counters simultanously to obtain the position error of a DUT (ctr0) vs a reference system (ctr1).I use a dummy...
View ArticleNI-9401 output lines
Is it possible to create a pulse train on Pin 14 of the NI-9401 module within the NI-9185 chassis?Currently, able to create a discrete output on pins 14, 17, 20, or 23 (DIO0, DIO2, DIO4, DIO6).It...
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CI Cnt Edges not counting a certain input signal
Dear NI community,today I ran into some trouble concerning a measurement program (see attached image). This program used to work fine for all measurement tasks up until today.I am using this to count...
View ArticleSetting Up a Start Trigger with PCIe-6612 board
Hello all, I want to create a start trigger to synchronize a photon counter with a scanning system, and to do this I am generating a digital "on" signal that should be received by my two Ni boards (Dev...
View ArticleSynchronization of PXIe4305 with the chassis/other cards
PXIe-4305 does not support an external clock. Is there any way I can sync this ai card with an external clock? Either through the chassis or through synchronizing its clock with the clock of another...
View ArticleUsing a PXI-6624 with VeriStand
I want to make PWM measurement with PXI-6624 in VeriStand 2021 R2. I need both frequency and duty cycle values. I set up the select measurement type is "Pulse Measurement" in System Explorer. Once I...
View ArticleSynchronization of PXIe4305 with the chassis or an AO card
I have a PXIe-4305 installed in PXI 1073 chassis with PXIe-6738 in the same chassis. The PXIe-4305 does not support external clock. I wish to collect the data in PXIe-4305 in sync with an external...
View ArticleChassis or DAQ Timer Calibration
I work in aviation and calibration is extremely important to us. Currently I have a small project that utilizes a cDAQ 9171 and a NI 9229. Our questions involves timer relationship between the chassis...
View ArticleCounter output one pulse per two input pulses in Python
I am using an NI USB-6363 daq and nidaqmx in Python. The function which I want to achieve is, for a ~ 2 MHz digital counter input (square wave), I want to reduce its rate to ~ 1 MHz, by sending out an...
View ArticleMultiple counters with same arm start trigger, no analog tasks available
Hi all, I'm using the DAQmx 2022 Q3 C API, but basically the issue should be the very same with LabVIEW etc.My hardware platform is a cDAQ-9181 chassis (1 slot) with a 9402 digital module. I'm using...
View Article6323-counter output -from external input
How do i setup a ctr1-external input terminal to go to same counter, ctr1 external output terminal continuously. I am looking the 6323 continuous output example. the ctr1-external input will come from...
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