PXI-6528 how to configure output voltage and pulse width
Hello!I have a PXI-6528, and want to output a pulse signal when click the button, the required output voltage is 28V, pulse width is 80ms. Now I don't know where or how to set the voltage and pulse...
View Article9477 update rate
Hello, I have a cDAQ 8184 chassis with a 9477 sinking DO module. In the specification stands: Update Rate = 8µs. Now my question, what does it mean? I have to switch die outputs in a resolution of 1ms,...
View ArticleNI 9401 configuration without Labview
Hi all, I am using the NI 9401 module with the NI 9144 slave chassis and a third party master (Twincat). It seems to be that all 8 digital ports are configured as inputs. However for our project we...
View ArticleNI PCI-6542: Creating Dynamic Waveforms Using the HSDIO Library
Hello! I am having problems understanding how to create waveforms using the HSDIO library to run on my PCI-6542 board. I need to create a program that turns one channel on for 12.5 microseconds, waits...
View Articledouble timer
Hi everyone!I've a problem to resolve on my VI (please find the pic attached). I need to control the flow rate of a pump (timered) only if it receives the signal from a DI.the signal to the second...
View ArticleNI USB 8451 with external power source
Hello everyone ! I try to figure for 2 days now why my USB 8451 gave me an error 301740 : SDA or SCL line or both are in a low state or there are no pull-up resistor. I try to change a multiplexer...
View Articleusb 6008 digital output always low
I have a usb 6008 working with a compiled LabVIEW program running on the 2014 run time engine that I use to toggle relays via the digital out ports (open collector). The circuit is such that logical 1...
View ArticleHow to get ni8451 firmware version
I would like to read the firmware version from several ni8542 devices in my test system. I can not find any drivers to do this. I do have the Ni845x.dll and it contains a function called...
View Articleadjustable digital input voltage
Hello,I have a 9402 DI card I'm using in a 9139 cDAQ. I'd like to take some PWM voltage measurements and do some sort of counter scheme to back out RMS values, harmonics, etc. However, the voltage is...
View Articleprogramming 6514 in C#
I have a 6514 and I am trying to simply set up ports for driving and sensing. I am programming in C# using the provided IVI Library. I know what methods (functions) I want to use but I am having...
View ArticleImplementing SPI with a cRIO 9068 and a ni 9402 Module
Hi,I am trying to communicate with a Razor 9dof IMU from a cRIO 9068 and a ni 9402 module, i have tested the IMU SPI with an arduino and works like a charm, but i been trying the examples of the SPI...
View ArticleProgramming digital I/O pins on the NI myRIO-9100 for more quadrature encoder...
I am using NI myRIO for my robot PUMA 200 which has 6 motors. I want to use 6 encoder channels to obtain the positions of the motor axes. But myRIO has only 4 encoder channels. I watched the video...
View Articlewait until done
my application needs to generate and acquire data simultaneously using external trigger and external clock. For generation sesion 'wait until done' command is used for sensing the external trigger....
View Articledriving DO lines with external clock wired to PFI lines
Hi all, I have few issues understanding how to use hardware timing resources in M series USB6229, with particular focus on DO. I have read last couple of day all google offered on the subject but I am...
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NiFpga_ReadFifo high cpu usage
Hi everyone I'm doing some tests with the board PCI-7811R installed in a PC with OpenSUSE 13.1 and NI-RIO 14. Using the NI FPGA C API I found some issues related to the CPU usage when my program waits...
View ArticleHow to set a I/O channel in NI PXIe-6556 to ground when in PMU mode
Is there a way or API call in LabVIEW to set any one of the channels to ground within the PXIe-6556 when in PMU mode?
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Generate single pulse on multiple channels from external trigger on High...
Hello, I am attempting to set up a system using a PCIe-6535B connected to a SMB-2163 high speed DIO. The system needs to be set up to work with a camera sending a trigger (at the start of each...
View ArticleDAQ signal accessory 50-pin I/O not working
Why is the 50-pin I/O in my 6014 DAQ not working? please help guys when I use the analog channels available on my signal accessory, it works. however, if I use the analog channels on the 50-pin MIO, it...
View Articleni 9381
Does anyone know the value of the resistor inside NI 9381 for the DIO or else what is the short circuit current from the digital output. NI manual for NI 9381 is silent on it and does not specify...
View ArticleOutput current capability of DIO output of NI 9381
What is the output current rating for the DIO output? Is the output short circuit protected due to the internal resistor shown in the manual. What is the value of this resistor?
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