daqmx vb6.0
I'm trying to get a VB6.0 program running with a PCI-6601 counter timer board. I need to be able to send a finite number of pulses to my stepper motor controller for an incremental jog move. Does...
View ArticleTemporizar una señal
Estoy realizando un proyecto en el qual debo mesurar cada media hora cuánto tiempo ha estado una válvula en funcionamiento. Para ello no encuentro ningúna función de temporización que se adecue a mis...
View ArticleDigital Output after Counter Reaches a specified number?
Hi all. I have come accross a problem using the counter on a USB 6008. Basically what I am doing is counting the pulse signal from an incremental encoder (one channel only). When this count reaches...
View ArticleConfigure counter/terminal for multiple frequency measurements on...
I am currently using LabVIEW 2009 to measure and record frequencies generated by 8 small turbine flowmeters. The flowmeters generate pulses at 24V which need to be counted in all 8 pins of my NI9421...
View ArticleIs it possible to use internal clock for buffered counter tasks?
Hi, Hardware: USB 6251 Mass Term Software: LabView 2011 SP1 I need to measure the angular position of a lever and the speed of a treadmill belt. I am using two quadrature encoders for this. To...
View Articlecontrolling retriggerable pulse (NOT pulse train) generation
Hi, I am using LabVIEW 2009 with PCI 6602 to do pulse generation (not pulse train!) according to an external trigger signal (say the pulse freqency is around 20Hz, but it is not a constant). My...
View ArticleCount digital inputs
Hi all, I want to count the number of digital inputs I am getting. I found the “Toggleincrement” function (see attatchement) that is counting inputs controlled by a Boolean Control using an Event...
View ArticlePFI 10
Hi, I am trying to use cntr0 in my USB 6251 Mass Term, but it seems that only Ch. A is getting pulses. I have checked the entire wiring from my quadrature encoder all the way through SCXI 139...
View ArticleAO+ 2 counter tasks of PCI-6110
Hello I'm trying to get synchronized analog output task and pulse counting of two counters using PCI-6110, meaning generate an AO signal first then count incoming pulses at two different counters...
View ArticleHow to connect the pinouts for a retriggerable pulse train
Hello, I am relatively new toDAQmx, especially to counters. I am having problems determining which pins to connect on the DAQ board. I would like to run the vi described here, but am unsure how to...
View Articlesynchronous pulse generation
Hi all, I need to generate synchronous pulses from my USB device NI M6289 connected with BNC2120 on connector-0 and SCB68 on connector-1. I need to operate 8 chips which are connected in parallel...
View ArticleRead number of output pulses from "CO Pulse Freq" Task?
I am writing code for a 6602 that produces PWM signals using the CO Pulse Output function. I would like to set this running continuously, but poll it every so often to see how many pulses have been...
View Articlecontinous period, overwritten error
I am working for a project to counting every photon for about 10 seconds. I used the pci-6602 and a computer with a 2.8Ghz Core i5-2300 CPU and a 16GB RAM. The software is Measure studio 2010 SP1 and...
View ArticlePCIe-6602 measure edge separation between two square waves
Hello, I have a PCIe-6602 and I wish to measure the edge speration of two quadrature wave forms from an rotary encoder. Example: I watch for a transition of channel A. This transistion is can be...
View ArticleHow fast can I count edges on a USB-6229?
I have a USB-6229, and I want to count edges using one of the onboard counters. My question is what is the maximum frequency that the counter can the count edges of my signal? (I didn't mention what...
View ArticleNI 9171 counter + 9402 jitter
I need to generate a couple of digital pulses, the counter output will be fine. What jitter and pulse width precision can I get when using 9402/9401 measurement system (cDAQ 9171 chassis + 9402/9401...
View ArticleCounting Encoder pulses using DAQmx CntEdges instance
Hello, The following is a brief description of my application. Hardware- NI PCI 6251(ctr0), SCB 68, Air Flow Meter coupled with Encoder(volumetric flow rate -> pulse train) Requirement-...
View ArticleIs it possible to use a Quadrature Encoder with Labview 7?
I'm trying to use a quadrature encoder with a usb-6221 and labview 7. When I ry to use vilogger to do this, it sas that vilogger 2.0 can only read analog inputs. Is there a way to read my encoder with...
View Article9401 counter issues
I am attempting to measure motor shaft rpm using a proximity sensor and a cDAQ-9174 with an NI 9401 module in slot 4. The output from the proximity sensor switches from 0V to approx 4.25V. The...
View ArticleNI 9401 photosensor wiring
Hey I am making a simple revcounter for a experiment setup. It consist of a photocensor (Omron EE-SX461 P11) and the NI 9401 in port 4 in a NI cDAQ 9174. I am not sure how to wire the photosensor to...
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