Dan Bookwalter N8DCJ

I have never used them before , I have been reading about them lately...

is there anyone who uses them extensively who would be willing to schedule a phone call to discuss/inform me more about them...

it is too much to type out everything etc...

if you are willing to , I guess, send me a message on here and we can go from there...

Regards

Dan

How can I only install the base version ? I downloaded LV 2025 , but I need to evaluate it using the base version to see about upgrades we need to make. I need to make sure all of our current LV code doesn't require Full etc... we are looking at upgrading around 12-15 stands mostly onsite , but there are others around the world.

I am not sure if I just uncheck everything it wants to add on , if it will only end up being base.

thoughts ?

Dan

Lior

Perfect , that is the kind of insight I was looking for ....

thank you 

Dan

Ok , i am looking for someone with extensive real world  PXI experience , who doesn't work for one of the suppliers etc... where I work none of us have any PXI experience.

Here is a big picture overview of what we would be replacing for now.

We have test stands that need upgraded, they currently use discrete instruments, Function Generator (4 Ch) , 4 channel oscilloscope , a Keithley 2750 , with 40 channels of DAQ , multiplexer card and relay cards ... all slots are full on the Keithley.

So, for PXI I was thinking DMM card , multiplexer(s) , relay cards , Oscilloscope and Function Generator ...

Ideally I would like to talk to someone for say 30 minutes on phone or Teams or whatever to get a better real world application feel etc..

From what I have read , we would not need a controller as the PC would be in control of everything and not offloaded to the controller.

One of the aspects of PXI I like is the ability for expansion in the future.

if you have any inclination to talk to us , message me on here and we will figure it out ...

TIA Regards

Dan

On 8/6/2024 at 3:54 PM, Lior Bilia said:

Try the EEVblog

They have a Sell/Buy section.

Cool , thanks I will check it out 

Not sure if this is correct forum ...

But , we are in the market for 1 or more of these instruments in working order (they are long obsolete) , we need to upgrade , but that is not a trivial task as we have stands all over the world using these things , not to mention all the software that would need upgraded to run with the new instrument. it is a painful situation that has to and will change , but , we need a few spares if we can find any.

I am hoping someone has 1 or more laying on a shelf that they no longer want 🙂

Regards

Dan

p.s. we have been searching the internet , but , nobody seems to have any.

OK , i do not actually have the hardware yet ,i am using simulated so a little tough to test it out , i suppose i could use different ranges on each channel to try to figure it out ..

anyway , if I configure a task to use channels , in say this order , 1,7,3,6 ....

will I get the data back in 1,7,3,6 or 1,3,6,7 ?

TIA

Dan

Rolf/Log

Thanks guys for the input , I will have to do a little testing , but , sounds encouraging.

Regards

Dan

If I build and exe using LabVIEW 2019 Pro , that utilizes the report generation toolkit , can it be run on a PC with just the LabVIEW runtime engine , and , some of these PC's may have LabVIEW 2019 Full installed on them. Will it run in that case ?

Regards

Dan

Gribo

OK , i will look into reducing resolution , I should be ok with that ...

Thanks

Dan

EDIT: GRIBO , i went to 4.5 resolution and i get the timing I need... i will have to make sure that the resolution is good , but , i guess i really dont have much choice .... this system is currently running by a program that was written in C++ , but we dont have the source code , and we need to get it converted to LV so we can add more types of units as needed ...

Dan

I have an application where i need to scan up to 16 channels at 10Hz , using a 16 channel multiplexer card 34902A.

i have tried a few simple things and am not close the 10 Hz , i saw somewhere either on here or NI.com about buffering , but , for the life of me i cant find it again.

edit: i started with the advanced scan example.

So , how do you set up buffering , and poll the instrument at regular intervals ?

i did all the configuring outside of the while loop , and only triggered and read (into a queue) in the DAQ loop , but , it seems as though i am still a little shy of the 10Hz.

Any pointers ?

Dan

OK , i am looking into using TDMS , but , i am struggling to get it to work how i envisioned. I know i am missing something , i am very tired been up for 1.5 days (travelling) ...

anyway , i like the idea of the meta data aspect vs a text file...

what i am looking to do is write 350-400 data points per second , for this particular test it is basically 10 rows x 35 or so columns...

i have mocked up some simulated data etc... when i try to write the 10 rows , it is very slow ... if i write all 216000 rows at once after the data , it is very fast , however , this test will run 12-18 hours , so i do not want to wait until the end to write the data ...

if someone could point me in the right direction that would be great.

Regards

Dan

On 9/11/2023 at 7:05 AM, ooth said:

Seems like if you just write a normal enter character (\n) in the string, the text in Excel will be on two lines just as if you press Alt+Enter.

Hey John

Yeah after messing with it for a bit , I was over thinking it , as usual...

thanks

Dan

I do not recall if i asked this already as I have too much going on ...

But , I need to be able to add Alt Enter to a string before i save it to Excel so the cell in Excel is formatted correctly ,I am using the Report Generation toolkit to write to Excel...

Suggestions ?

Dan

I was looking for something else ... and ran across this thread ...

"This header data is not actually useful"

my question is , why the header then ? 

Dan

I may be in need of a dedicated serial adapter , the NI ones are super expensive , but , if it was up to me thats what I would buy...

So , does anyone have any recommendations .... you can find them anywhere from $20 to $600

obviously it needs to interface with NI-MAX , although I am sure they all would..

Dan

dadreamer

thanks i will give this a try ..

Dan

Shaun

We do have 2012 Pro but as noted it is not included , I do have 2019 Pro , but , I am contrained to 2012 for most things ...

Dan

I have found myself needing to use PID (probably just PI) , for this project I am using LV 2012 Pro , but it either didnt come with any of the PID stuff or it wasnt installed. Either way I cant install any toolkits as we have a dozen or so stands all over the world all with the exact same harware and software.

I was hoping somebody had a PID vi they wouldnt mind sharing. just trying to save time rather than roll my own etc... this will not be part of anything that will be sold or marketed , all internal use...

Dan

Maybe something like this could help https://www.ni.com/en-us/shop/software/products/xlr8.html

Hey John , i will have to take a look at that as it may solve a few issues we are having...

Thanks

Dan

4 hours ago, Jordan Kuehn said:

Office 365 gave me many headaches in the past. Additionally updates would change the ActiveX interfaces breaking compatibility unless you reloaded and recompiled. I would typically try to purchase a single seat permanent license for a particular test stand and not use the IT software. Not sure if that is an option for you.

Jordan

I actually started down this path today wth a production test setup , it will likely be the easiest most painless option

18 hours ago, Gribo said:

LibreOffice? 

ActiveX (And the .NET API) should work with Office365.

Gribo 

I briefly looked into this , but , and it would be a bunch of extra work , which is fine , until our company finds out it is installed , then they may have serious issues ....

I was also thinking today we have test setups around the world , most do not have Excel , but a few do , so asking them to move to another spreadsheet platoform may casue even more headaches especially since a few are military ...

OOTH who is in this thread knows what I am referring to regarding corporate policies and trying to do non-standard thinkgs ... I already push their policies to the limit in a few cases...

So i think I will explore the single seat license , we did it once for another project , so hopefully it wont be an issue again ...

Thanks for the input everyone...

Dan

Has anyone ported any code using ActiveX from Excel 2016 to 365 , is it seamless ? somehow i figure it isnt... to be honest I know nothign about 365.

I have several apps that rely heavily on Excel 2016 , I cant use the report generation stuff since some of the machines do not have LabVIEW (2019) Pro only base or full.

unfortunatly I cant rely on IT to warn me when they are going to switch ... 

TIA

Dan

Hooovahh

yes basically , i have already moved on from the icon idea , i like the tree control idea , i was messing around with a listbox , but , the tree should work better.

nice looking panel there.

Dan

Before I go down this road of a vision I have to make things easier for the engineers to write their own procedures .... I figured I would ask here first...

What I would like to be abe to do is have a Tab control with different functions per tab , then let the user be able to drag and drop an "Icon" so to speak to the listbox,table etc... then I can pop up the user input screen for that particular function. Note , when I say function , i mean things that relate to testing , not , functions from the pallettes etc...

Dan

Ok on all  , well I will let them battle it out with NI over licenses .... o in the mean time...

I have 60 inputs and 15 outputs I need to deal with ....

What is the best/easiest way to realize say a 10hz scan rate , which methodology would be recommended?

I threw some stuff together today just to see if I could get readings , I was able to , but , way too slow ... as I figured , I dropped a bunch of I/O nodes for a couple of the modules on the block diagram , connected some indicators and ran it. with only 25% of the channels I ultimately need to scan , I got maybe 1 Hz.

the one module requires FPGA , I figured I would try to do it all in FPGA mode , rather than Hybrid , not sure which approach I should...

Looking for guidance ...

Dan

p.s. I am going to start looking at what examples I can find now ....