PicoScope 7 Software
Available on Windows, Mac and Linux
Max number of Picoscope 4444 usable on a computer
Max number of Picoscope 4444 usable on a computer
Hello,
I'm currently working with a Picoscope 4444 and I'll need to record a lot of signals (50+) simultaneously.
Can I use 5 to 15 Picoscope 4444 on a PC with USB Hub for example?
Thank you for your answers!
I'm currently working with a Picoscope 4444 and I'll need to record a lot of signals (50+) simultaneously.
Can I use 5 to 15 Picoscope 4444 on a PC with USB Hub for example?
Thank you for your answers!
Re: Max number of Picoscope 4444 usable on a computer
I've been asking for this but it has not yet materialised. Replying here hopefully to get others interested in the feature.
Re: Max number of Picoscope 4444 usable on a computer
It is possible to connect multiple scopes to the same PC, however whether it would work for your requirements would depend upon exactly what you are looking to do. The important factors to consider are the sampling interval, the length of time you need to sample for, and how critical the timing is between channels across the devices.
If you needed to use the PicoScope 7 software then each scope would require it's own instance of the software to be running, and this would limit the number of devices you could use depending upon PC resources. We often have two or three when testing but generally not working the software particulalrly hard.
If you are able to write your own application then you can use more devices and get better time synchronisation between channels across devices.
If you would like to email support@picotech.com we can look into this in more detail with you.
If you needed to use the PicoScope 7 software then each scope would require it's own instance of the software to be running, and this would limit the number of devices you could use depending upon PC resources. We often have two or three when testing but generally not working the software particulalrly hard.
If you are able to write your own application then you can use more devices and get better time synchronisation between channels across devices.
If you would like to email support@picotech.com we can look into this in more detail with you.
Martyn
Technical Support Manager
Technical Support Manager
Re: Max number of Picoscope 4444 usable on a computer
Hi Martyn, did the OP get in touch with you at all regarding this subject?
Re: Max number of Picoscope 4444 usable on a computer
Hi again Martyn, hope we'll.
Can ai just ask again if the OP went anywhere with this? I'm toying with the idea of buying a second 4444 to use on an extended desktop but don't want to do it if it won't give reasonable results.
£1000 is to much of an outlay for me just to experiment.
Thanks.
Re: Max number of Picoscope 4444 usable on a computer
2 of the 4444 scopes at the same time is no problem.
But remember you don't get 8 channels in picoscope !
You get 2 times the picoscope window open with 4 channels on each screen !
The total number of channels will be 8 but not in program.
Unless you write your own software in the SDK.
Benno
But remember you don't get 8 channels in picoscope !
You get 2 times the picoscope window open with 4 channels on each screen !
The total number of channels will be 8 but not in program.
Unless you write your own software in the SDK.
Benno
Re: Max number of Picoscope 4444 usable on a computer
Trouble is, the SDK I think is a little above my capabilities.bennog wrote: ↑Tue Mar 05, 2024 7:01 am2 of the 4444 scopes at the same time is no problem.
But remember you don't get 8 channels in picoscope !
You get 2 times the picoscope window open with 4 channels on each screen !
The total number of channels will be 8 but not in program.
Unless you write your own software in the SDK.
Benno
Re: Max number of Picoscope 4444 usable on a computer
then your only option is to have 2 versions of Picoscope running at the same time 1 for each scope.
the problem is to get them in sync with triggers.
Benno
the problem is to get them in sync with triggers.
Benno
Re: Max number of Picoscope 4444 usable on a computer
The OP was after 5 to 15 PicoScopes which is an unusual request. Most cases for adding multiple scopes are unique so we prefer to advise people in relation to their specific needs which is why we will often ask people to email in to support@picotech.com
Can you give more detail on exactly why you are looking at adding in an extra PicoScope, and what you would be expecting in terms of the measurements you will be able to make. You can either post here or email in to the team.
Can you give more detail on exactly why you are looking at adding in an extra PicoScope, and what you would be expecting in terms of the measurements you will be able to make. You can either post here or email in to the team.
Martyn
Technical Support Manager
Technical Support Manager
Re: Max number of Picoscope 4444 usable on a computer
Hi Martin, I'll email you direct referring to this forum post with details.
Cheers.
Cheers.
Re: Max number of Picoscope 4444 usable on a computer
Hello,
Sorry for the late answer and thank you for your replies.
Indeed we managed to record 20 signals (almost) simultaneously by using 5 Picoscopes and a Picoscope 7 software open for each on a good PC but indeed we didn't succeed yet to trigger the them all at once (only manually with the software)
Next, this year, we would like to record 40 signals maybe using a 8 channels version (like the Picoscope 4824A). Now we want to find a way to sync them do you have a new simple to do that?
(For example is SDK easy to learn and can be use for this kind of situation? Is there any technical support on this subject?)
Thanks for your help
Sorry for the late answer and thank you for your replies.
Indeed we managed to record 20 signals (almost) simultaneously by using 5 Picoscopes and a Picoscope 7 software open for each on a good PC but indeed we didn't succeed yet to trigger the them all at once (only manually with the software)
Next, this year, we would like to record 40 signals maybe using a 8 channels version (like the Picoscope 4824A). Now we want to find a way to sync them do you have a new simple to do that?
(For example is SDK easy to learn and can be use for this kind of situation? Is there any technical support on this subject?)
Thanks for your help
Re: Max number of Picoscope 4444 usable on a computer
What is your desired sample rate and what is the max allowable difference between the scopes ?
Benno
Benno
Re: Max number of Picoscope 4444 usable on a computer
We record 1MSa over 100s. per channel and we would like a sync at better than 100ms.
Re: Max number of Picoscope 4444 usable on a computer
Ok forget the picoscope software.
That would be 400 Msamples total for 4 channels. (picoscope handles up to 250 Msamples)
So in picoscope software with 4 channels you get 625 kSamples / sec at 10 sec / division (100 sec total)
With the SDK no problem no need for triggers, if I would do it in C++ it would probably be less than 1 ms in streaming mode.
With 2 instances op picoscope you you can do it if you sacrifice 1 channel on each scope to trigger on you can get it within 10 - 100 samples (if you have a sharp edge probably within 2 or 3 samples)
But limited to 625 kSamples / sec for 100 sec capture as notid above.
Benno
That would be 400 Msamples total for 4 channels. (picoscope handles up to 250 Msamples)
So in picoscope software with 4 channels you get 625 kSamples / sec at 10 sec / division (100 sec total)
With the SDK no problem no need for triggers, if I would do it in C++ it would probably be less than 1 ms in streaming mode.
With 2 instances op picoscope you you can do it if you sacrifice 1 channel on each scope to trigger on you can get it within 10 - 100 samples (if you have a sharp edge probably within 2 or 3 samples)
But limited to 625 kSamples / sec for 100 sec capture as notid above.
Benno