Multifunction DAQ

cancel
Showing results for 
Search instead for 
Did you mean: 

Problem with new PC and PCI-6733 card

Hi

 

We are using 9 computers with two NI PCI-6733 Cards in our Project. Unfortunately we run into trouble after replacing two PCs.

 

grueni_0-1655238991024.png

 

Betriebssystem (OS) Windows 10 Professional
Version des OS 10.00.22000
Info zum OS
Prozessor Intel(R) Xeon(R) CPU E3-1225 v6 @ 3.30GHz / Intel64 Family 6 Model 158 Stepping 9 / GenuineIntel / 3312 MHz
Anzahl von Prozessoren 4
Physikalischer Speicher 31,8 GB RAM
Laufwerk C:\ 387 GB von 465 GB frei
Laufwerk D:\ 532 GB von 931 GB frei

Software von NI: Version:

NI-DAQmx Device Driver 20.7.0f155
NI-DAQmx ADE Support 20.7.0
NI-DAQmx MAX Configuration 20.7.0
NI I/O Trace 20.5.0f0
LabVIEW Runtime 2018 SP1 f5 18.0.1
Measurement & Automation Explorer 20.5.0f0
Measurement Studio Visual Studio 2012 Support - See individual versions below.
NI PXI Platform Services Configuration 20.7.0f230
NI PXI Platform Services Runtime 21.8.0f103
NI-PAL Software 21.8.0
NI System Configuration 21.5.0f240
LabVIEW Runtime 2019 SP1 f3 19.0.1

Any suggestion how we can solve it?

kindly regards
Mario

0 Kudos
Message 1 of 5
(232 Views)

But you've not explained what the problem is.

 

From the image, you are generating a 1Vpk 1Hz sine signal at 1000S/s using the test panel and the capture a 1Hz 1Vpk signal (probably on a scope or another DAQ), so it is working well.

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
0 Kudos
Message 2 of 5
(227 Views)

Thanx for your fast reply.

The Problem is: there are two Spikes in the signal. When i repeat amount and position changes.

 

kindly regards

Mario

0 Kudos
Message 3 of 5
(222 Views)

Today i got an Email:

Did it solve your problem?

Click here to view the reply and mark one as an Accepted Solution.

This helps others find helpful answers in the community too!

I couldn't solve the problem and stopped working on it, because i have no further ideas what i can do.



0 Kudos
Message 4 of 5
(149 Views)

Both of the pictured spikes appear right at the downward slope zero crossing of the sine wave.  Have you done any reading up on "glitch energy"?   I'm no expert in the area, but offhand the magnitude of your spikes seems quite a bit higher than I'd have expected.  

 

Do you see this on only the 2 new PCs and not on the older ones?  Is anything else connected to your analog output signals when you measure them?

 

I don't have any solid suggestions, but here are some more resources and discussions about DAC glitches:

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P9H7SAK&l=en-US

 

https://forums.ni.com/t5/Multifunction-DAQ/6733-glitches/td-p/632051

 

https://forums.ni.com/t5/Multifunction-DAQ/Zero-crossing-output-spikes-from-DAQ-pci-6229/td-p/759418

 

 

-Kevin P

CAUTION! New LabVIEW adopters -- it's too late for me, but you *can* save yourself. The new subscription policy for LabVIEW puts NI's hand in your wallet for the rest of your working life. Are you sure you're *that* dedicated to LabVIEW?

(Summary of my reasons in this post, part of a voluminous thread of mostly complaints starting here).



0 Kudos
Message 5 of 5
(141 Views)