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Making scalable oscilloscope graphs with a Siglent SDS1104X-E via SCPI
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Performa01:

--- Quote from: HendriXML on February 05, 2019, 12:20:59 pm ---I measured the time it takes to fetch 14M samples:

Read 14000018 bytes in 2,61 seconds (5,12 MB/s)

This deviates a lot from more than a minute, so I guess that the COM way does not need some slow encoding on the oscilloscope. :o

--- End quote ---
I'm not sure, but that "minute" might be related to the older SDS1000X series. The SDS1000/2000X-E are more modern and powerful.

HendriXML:
Forgot they’re that different. With the Siglent power supply -e means constrained version.

The Siglent people like to keep the naming obscure.
Performa01:
Nothing obscure. -E means "Economy" - you might call it "constrained".

Siglent just decided to introduce a new platform on the low end models first, so they could gain experience and establish a solid basis. The next X (without -E) scopes will of course be based on the new platform as well, but offer a plus in features and performance, so the proportions will be balanced again.
HendriXML:

--- Quote from: Performa01 on February 05, 2019, 01:44:03 pm ---Nothing obscure. -E means "Economy" - you might call it "constrained".

Siglent just decided to introduce a new platform on the low end models first, so they could gain experience and establish a solid basis. The next X (without -E) scopes will of course be based on the new platform as well, but offer a plus in features and performance, so the proportions will be balanced again.

--- End quote ---
You need to know that. My first thought was that -E was more Enhanced :)

The SDS1104X-E is the constrained version of the SDS1204X-E and could therefore also be named  SDS1104X  :-+

I find it still a bit confusing when reminding device capabilities. I like the 02 and 04 though  :-+.
HendriXML:
I did some testing today.

14K samples per channel is about the max for making graphs.

Excel could read up to 700K samples, and still make a graph, but pasting it to Visio did not go well.

30K points in a graph should be more than enough. It is always possible to do some calculations/consolidation before importing.
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