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Rohde-Schwarz / RsInstrument

RsInstrument is a Python remote-control communication module for Rohde & Schwarz SCPI-based Test and Measurement Instruments.
MIT License
72 stars 16 forks source link

PyVISA-py support? #15

Closed oberstet closed 6 months ago

oberstet commented 8 months ago

Hi there,

quick Q: are there any plans for RsInstrument to support running on top of PyVISA-py without a proprietary IVI-VISA library installed, such as R&S®VISA or others?

As far as I understand (I'm new to this stuff, so I might have overlooked/misunderstood sth, pls correct me if so ..):

R&S®VISA is proprietary freeware, shipped as a native blob with associated annoyances and potential for increased security attack surface, and is unconditionally required to make any practical use of RsInstrument, right?

Thanks!

Miloslav-RS commented 6 months ago

Hi oberstet, sorry, for the late answer, use the LAN plain Socket: https://rsinstrument.readthedocs.io/en/latest/StepByStepGuide.html#no-visa-session

oberstet commented 6 months ago

Thanks for answering! So the answer is "no", and I am wondering, why I would want to use RsInstrument just for a plain, raw TCP socket connection. What's the point? Well, what's the point of forcing proprietary R&S®VISA blobs onto developers. Anyways. Won't happen. Waste of time.

Miloslav-RS commented 6 months ago

Sorry to force the RsInstrument on you :-) Pyvisa-py is also an additional software layer, which I see you want to avoid. But the answer is 'YES', use the SelectVisa='@py' in the options string:

io = RsInstrument("TCPIP::192.168.52.102", options="SelectVisa=@py")

oberstet commented 6 months ago

Sorry to force the RsInstrument on you :-)

=) No worries! I understand. "Trying" is ok. I will just ignore that.

FWIW, luckily I only need to deal with RF sub 6 GHz, I don't need top-end hardware like R&S provides, and I found a VNA which is fully OSS (both HW and all SW, including firmware and user libs, no BLOBs!) - and supports Python;)