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  • Connecting to instrument via GPIB using PyVISA in Python
    I am working with Python, the Pyvisa module, and the National Instruments backend (NI VISA) to create a script that will allow me to conduct the measurements needed However I am running into trouble communicating with the instruments I have run a couple of simple scripts, based on the official documentation provided by the developers of
  • pyvisa can not locate a VISA implementation - Stack Overflow
    PyVISA Version: 1 9 1 Backends: ni: Version: 1 9 1 (bundled with PyVISA) Binary library: Not found But for some reason pyvisa fails to load the NI-VISA back end The same happens if the back end remains unspecified: >>> import visa >>> rm = visa ResourceManager() ValueError: Could not locate a VISA implementation Install either the NI binary
  • Cannot connect to a specific Ethernet port using Python and PyVisa
    I am trying to connect to a temperature chamber via an Ethernet connection using pyVisa in Python The device only allows connections through port 2049 I have no problems connecting to it via PuTTY or HyperTerminal, but when I try this command in Python import visa chamber = visa instrument("TCPIP::10 2 17 130::2049") I get this error:
  • python - pyvisa - Trying to read variable length data from device that . . .
    There is no read_termination character in the stream, (per the manual from the device manufacturer) I have attached debug output from miniterm to show a few transactions Is there something I am missing to get pyvisa to read an arbitrary length return string without termination?-----miniterm output -----
  • python - PyVISA unable to find USB instruments with NI-VISA (WINDOWS 10)
    I'm very new to using pyvisa and I'm planning to try to automate some of my lab equipment using it However, at the very first hurdle pyvisa is unable to locate any usb devices I've got the NI-VISA installed, and on the NI-VISA wizard the wanted devices are recognised But when running the following code:
  • Acquiring data from oscilloscope using pyvisa - Stack Overflow
    I am trying to read waveform data from DSO_X 2024a via TCP IP, and I need a specific number of points How do I get float results from the scope? Code import visa rm = visa ResourceManager()
  • python - Is it normal to wait for some time between operations under . . .
    raise errors VisaIOError(ret_value) pyvisa errors VisaIOError: VI_ERROR_TMO (-1073807339): Timeout expired before operation completed Is it normal to delay between operations when programming such instrument under VISA protocol? If not, what is the usual way? Or is there any mechanism like Event? If yes, how do I decide the latency time?
  • can write to rs232 serial instrument but cant read from it
    The PyVisa library is a little obscure as to what default termchars are in use by the different subclasses (e g SerialInstrument) If you can write to an instrument but cannot read from it, it is likely that your defined read_termination character isn't correct Here's an example setting up my instrument whose termination character is \r
  • pyvisa - Using python for getting data out from a tektronix . . .
    pyvisa; Share Improve this question Follow asked Mar 20, 2019 at 20:48 raj rajagopal raj
  • pyVISA: Return instrument to local mode programmatically
    I am using pyVISA to control some instruments in a GPIB network When I create a resource manager, all the instruments in my GPIB network enter remote mode, so the front panel displays are locked and do not update When I close the resource manager, the instruments remain in remote mode





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