Unexpected crosstalk/ghosting between two high-impedance photodiode inputs on...
I am seeing apparent crosstalk between two analog-input channels on a PCIe-6351 multifunction DAQ and would appreciate help determining whether it is multiplexer ghosting, a grounding issue, or another...
View ArticleNI 9219 shorted-input offset changes from −0.18 mV at 1 S/s to −7.5 mV at 50 S/s
Hi everyone,I am troubleshooting a repeatable voltage offset on an NI 9219 in a cDAQ-9172 chassis connected over USB.I am measuring channel cDAQ1Mod1/ai0 in differential voltage mode, with a ±0.125 V...
View ArticleLoose circuit board on NI-9923
I have an NI-9923 with a loose circuit board. It is loose when I remove the top cover. When I screw on the top cover it is not loose, but seems to sit a bit higher at the back where I can see it...
View ArticleLosing voltage readings on NI 9229
Hello All, Im currently trying to test a unit's PMG voltage across three phases. With a multimeter I am seeing the correct voltage throughout the speeds that I'm spinning, But the NI 9229 is reading...
View ArticleUSB-6363 not detected by NI-DAQmx on Ubuntu 22.04
Product: NI USB-6363 (multifunction DAQ)OS: Ubuntu 22.04.5 LTS, kernel 5.15.0-194-genericDriver: NI Linux Device Drivers 2026 Q3 (ni-software-2026-jammy), ni-daqmx 26.5.0.49618-0+f466, ni-daqmx-mio...
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Part number of 68-pole connector on SCB-68A
I design a PCB as a signal conditioning unit, where the interface to DAQ system should be exactly the same connector, as mounted in the SCB-68A. I could not figure out the type and manufacturer of it....
View ArticleUSB-6363 AO drops to ground when USB is disconnected
I'm sure this has been asked before, but I was wondering if there was a way to change some functionality of the USB-6363. My issue is that a DC analog output (say 5 V) will drop to 0 V immediately if...
View ArticleFried the daq
Hello, Testing with my Mcc daq usb tc to read some temperatures. The thermocouple came contact into with a 120v cable and fried the daq channels. Now its giving random values but stills turns on....
View ArticleNI USB-6451 OEM
With the OEM boardsNI USB-6212NI MIO USB-6423i can easy internally read back the value on AO with the task string like:Dev1/_ao0_vs_aogndwith the NI USB-6451 , i just get error -200170Physical channel...
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RC68-68 (P/N 187252-01) – D-Type Connector Jackscrews
Can anyone please confirm whether the 68-pin D-Type (P1) connector on the RC68-68 (P/N 187252-01) is supplied with factory-installed captive jackscrews, or if it has mounting holes only?
View ArticleAccessing all 4 Analog Outputs on PCIe-6323 using a single terminal block?
Hello NI Community,I am designing a hardware setup using an NI PCIe-6323 for an auditory research experiment. My application requires 4 Analog Outputs (AO 0 through AO 3) for multi-channel acoustic...
View ArticleProtecting NI-9219 DAQ from HF interference during TIG welding
Hello everyone,I am using an NI-9219 module in a cDAQ chassis to acquire temperature data from K-type thermocouples during an automated TIG welding process.The thermocouples are spot welded directly...
View ArticlePE Grounding Point through cdaq 9183 Chassis
Hello,I am setting up a system based upon a NI 9183 cDAQ chassis. My aim is to build a robust system against EMC to do some analog measurements in a noisy environment. I have connected all cable...
View Article9216 Brief Data Dropout
During cold weather between the 30° F to 45° F range, we saw that several of our 100ohm RTDs around the site started having blips in data with a <1s persistence. All of these sensors were on 9216...
View ArticleTemperature measurement with NI9237 Bridge Module
Hi, Anyone with successful experience gathering temperature data using a slot in a 9237? I have an application for full bridge measurements and would like to leverage an empty slot to capture...
View Article6363 MHDDK Analog Read
Hi, I'm porting some QNX C++ code from a 6259 card to a 6363, using the MHDDK, and I've got digital in and out, and analog out working fine, but the analog input is proving tricky! The code below...
View ArticlePXIe-6363: Capturing digital waveform using same waveform as trigger
I want to capture a digital waveform using the PXIe-6363 internal clock at 2 Msamples/sec, triggering on a high-to-low transition of that digital waveform. I understand that the digital waveform needs...
View ArticleCannot read analog input between 0 and 0.6VDC on my USB-6008 with RSE mode
I'm trying to read analogue input via RSE connections with floating signal sources (battery device). And the input signal meets all of the following conditions:The input signal can share a common...
View ArticleDifferences between 64xx and 63xx multifunction hardware
I have a project that has been using a USB-6341 successfully for a several years. It does some straightforward hardware timed DO, bit-banging a protocol at ~1 MBit data rates for some really low-level...
View ArticleConvert the analog signal output of the PCIe-6733 board to an SMA connector.
Hello. I am building an analog signal output system for ultracold atom experiments. I plan to use a PCIe-6738 to generate signals, and use an SHC68-68-A2 cable to connect the signals to an SCB-68A...
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