asvela / keyoscacquire Goto Github PK

Hello, I am testing keyoscacquire with a Keysight DSOX1202G and when issuing the scope = koa.Oscilloscope('LONG ADDRESS') command, the library responds with:
Connected to: KEYSIGHT TECHNOLOGIES DSOX1202G (serial CN######)

Then after a delay there is a timeout when trying to query ':CHAN3:DISP?'. Since this is a two channel scope, polling channel 3 causes an error. Changing the range(1 to 5) to range(1 to 3) on lines 319 and 326 of oscilliscope.py clears the error but now it is hardcoded for 2 channels.

Since there isn't a standard SCPI command to determine the number of channels on a scope, perhaps channels could be added as a parameter when initializing.

1. install_requires miss pandas package
2. Would you enhance the feature to save screenshot to PC?

Hello,
While searching for controlling lab equipment via Python I found your code. Looks very clean, well documented, super !
In our lab we have an Keysight MSOS404A and DSOV084A. Connected via ethernet network.
While trying your code I get the following error:

Connected to:
  KEYSIGHT TECHNOLOGIES
  MSOS404A (serial MYxxxxxxxx)

VisaError: VI_ERROR_TMO (-1073807339): Timeout expired before operation completed.
  When trying query ':ACQuire:TYPE?'  (full traceback below).
  Have you checked that the timeout (currently 30,000 ms) is sufficently long?
Latest errors from the oscilloscope (FIFO queue, upto 30 errors)
 0: -113
 1: -113
 2: -420
 3: 0
....

I saw in the documentation you added support for the Infiniium series, is this also something which needs adjustment for our series?
Kind Regards, Hans

Add function in oscacq.py to extract error from oscilloscope's error queue. Consider clever way of asking for error before connection is terminated due to failure.