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Tonghui TH2830 LRC meter serial port, HOW ? BRAKE THRU, ALIVE
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oz2cpu:
Hi martin

I used TERA TERM
with the settings and wirings explained in the last video

i look so much forward to hear if you are smarter than me :-)
please figure out how to read measurement data

so we can make a cool curve tracer with Test Controller..
Martin72:
Well, let´s see...
When I don´t get the chance at work, I´ll "loan" the meter for a weekend (can´t promise the forthcoming weekend) at home.  ;)
Not exactly the same, but I have more or less the same problems with my ET4410, you can do some things on the commandline, but the script won´t work as expected.

Martin

oz2cpu:
i think we need to start from the bottom,
understand the command line, document it, share all our findings,
then we have a place to direct other users, and our skilled script helpers,
if we all have a deep understanding of how the commands are truely working towards the instrument,
we have a fair chance creating a cool program / driver

oz2cpu:
>from the manual

>7.1.1 DISPlay subsystem commands
>MEASlay subsystem commands are mainly used to set the display page for the instrument.
>The :DISPlay? Query returns the current page.

DISPlay?
RETURNS ERROR BEEP

display:page?
returns
< MEAS DISPLAY - 1 >

wich is NOT one of the listed posibilities ?? see page 72 manual

DISPlay:PAGE MEASurement

DISP:LINE "Resistor meas"
DISPlay:LINE?
returns
Resistor meas

DISPlay:RFONt?
returns
LARGE

DISPlay:RFONt TINY
set the result size to tiny (but dont change measurement time)

so some of that seems to work


>7.1.2 FREQuency subsystem commands

all the listed examples here, seems to work. as explained erlier

i am still not able to read a single type of measurement
china support really try to help,
when i ask a and ask b, they answer c and d
so i have not learned anything usefull from them yet.

anyone else with more luck ??


BY THE WAY : the instrument dont contain a bullet prof incomming values / range / command handler,
with timeout and all that.
so there are a few ways to freeze it..
play a bit with disp:line and parameters to figure out how to read data via their examples, and you get frozen unit.

power off/on restore normal opperation.
Martin72:
I´ve asked the sourcetronic support, if there is a demo version of their ST4 software avaible, just to play around.
No, only full for nearly 300 bucks.. :P
Nevertheless, our ST2830 is back again, at last.
When I get the chance at work I´ll do some tests, otherwise take it to home like mentioned it before.
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