ahmedyahia1060 commented 3 months ago

Instrument details

Model: keysight 53230A
Communication: usb
Link to the documentation (if available):https://www.keysight.com/gb/en/library/manuals/programming-and-syntax-guide/53220a53230a-frequency-universalcountertimer-programmers-reference-1971001.html

Output of `pyvisa-info`

USB0::2391::6407::MY59370120::0::INSTR Traceback (most recent call last): File "/home/user/Desktop/Build_1_Test/counter3.py", line 38, in instrument = connect_device(resource_name) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/user/Desktop/Build_1_Test/counter3.py", line 13, in connect_device instrument = rm.open_resource(resource_name) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.12/dist-packages/pyvisa/highlevel.py", line 3292, in open_resource res.open(access_mode, open_timeout) File "/usr/local/lib/python3.12/dist-packages/pyvisa/resources/resource.py", line 281, in open self.session, status = self._resource_manager.open_bare_resource( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.12/dist-packages/pyvisa/highlevel.py", line 3217, in open_bare_resource return self.visalib.open(self.session, resource_name, access_mode, open_timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/highlevel.py", line 167, in open sess = cls(session, resource_name, parsed, open_timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/sessions.py", line 323, in init self.after_parsing() File "/usr/lib/python3/dist-packages/pyvisa_py/usb.py", line 81, in after_parsing self.interface = self._intf_cls( ^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 287, in init super(USBTMC, self).init(vendor, product, serial_number, **kwargs) File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 199, in init raise ValueError("No device found.") ValueError: No device found.

[CODE]: import pyvisa

def list_devices(): """List all connected VISA devices.""" rm = pyvisa.ResourceManager('@py') devices = rm.list_resources() for device in devices: print(device)

def connect_device(resource_name): """Connect to the USBTMC device.""" rm = pyvisa.ResourceManager('@py') instrument = rm.open_resource(resource_name) return instrument

def query_device(instrument, command): """Send a query to the device and get the response.""" response = instrument.query(command) return response

def write_device(instrument, command): """Send a command to the device.""" instrument.write(command)

def read_device(instrument): """Read the response from the device.""" response = instrument.read() return response

if name == "main":

List all connected VISA devices

list_devices()

# Replace 'USB0::0xXXXX::0xYYYY::INSTR' with your device's resource string
resource_name = 'USB0::0x0957::0x1907::MY1234567::INSTR'

# Connect to the device
instrument = connect_device(resource_name)

# Query the device (example: ask for identification)
idn_response = query_device(instrument, '*IDN?')
print(f"Device IDN: {idn_response}")

# Send a command to the device (example: reset the device)
write_device(instrument, '*RST')
print("Device reset command sent.")

# Close the connection
instrument.close()

ahmedyahia1060 commented 3 months ago

It shows time out error : An unexpected error occurred with device USB0::2391::6407::MY59370120::0::INSTR: [Errno 110] Operation timed out

arr-ee commented 3 months ago

Could you please check device permissions? See https://github.com/pyvisa/pyvisa/issues/758#issuecomment-2041328096, specifically “My solution” section.

ahmedyahia1060 commented 3 months ago

I have already tried this issues before but the output is still the same , I am using Ubuntu so i downloaded keysight communication expert and tried to communicate with it and it worked but when i try with pyvisa it never work with keysight appliction again

ahmedyahia1060 commented 3 months ago

I run with pyvisa debug mode get the following : ##################################################### DEBUG:pyvisa:SerialSession was correctly imported. DEBUG:pyvisa:USBSession and USBRawSession were correctly imported. DEBUG:pyvisa:TCPIPSession was correctly imported. DEBUG:pyvisa:GPIBSession was not imported No module named 'gpib'. DEBUG:pyvisa:Created library wrapper for py DEBUG:pyvisa:Created ResourceManager with session 8724403 ('ASRL/dev/ttyS0::INSTR', 'ASRL/dev/ttyS1::INSTR', 'ASRL/dev/ttyS2::INSTR', 'ASRL/dev/ttyS3::INSTR', 'ASRL/dev/ttyS5::INSTR', 'ASRL/dev/ttyS6::INSTR', 'ASRL/dev/ttyS7::INSTR', 'ASRL/dev/ttyS8::INSTR', 'ASRL/dev/ttyS9::INSTR', 'ASRL/dev/ttyS10::INSTR', 'ASRL/dev/ttyS11::INSTR', 'ASRL/dev/ttyS12::INSTR', 'ASRL/dev/ttyS13::INSTR', 'ASRL/dev/ttyS14::INSTR', 'ASRL/dev/ttyS15::INSTR', 'ASRL/dev/ttyS16::INSTR', 'ASRL/dev/ttyS17::INSTR', 'ASRL/dev/ttyS18::INSTR', 'ASRL/dev/ttyS19::INSTR', 'ASRL/dev/ttyS20::INSTR', 'ASRL/dev/ttyS21::INSTR', 'ASRL/dev/ttyS22::INSTR', 'ASRL/dev/ttyS23::INSTR', 'ASRL/dev/ttyS24::INSTR', 'ASRL/dev/ttyS25::INSTR', 'ASRL/dev/ttyS26::INSTR', 'ASRL/dev/ttyS27::INSTR', 'ASRL/dev/ttyS28::INSTR', 'ASRL/dev/ttyS29::INSTR', 'ASRL/dev/ttyS30::INSTR', 'ASRL/dev/ttyS31::INSTR', 'ASRL/dev/ttyS4::INSTR', 'ASRL/dev/ttyUSB0::INSTR', 'USB0::11975::25344::800070020756710009::0::INSTR', 'USB0::2391::6407::MY59370120::0::INSTR') DEBUG:pyvisa:ASRL/dev/ttyUSB0::INSTR - opening ... DEBUG:pyvisa:ASRL/dev/ttyUSB0::INSTR - is open with session 5625419 DEBUG:pyvisa:Serial.write b'*IDN?\r\n' DEBUG:pyvisa:ASRL/dev/ttyUSB0::INSTR - reading 20480 bytes (last status <StatusCode.success_max_count_read: 1073676294>) DEBUG:pyvisa:ASRL/dev/ttyUSB0::INSTR - exception while reading: VI_ERROR_TMO (-1073807339): Timeout expired before operation completed. Buffer content: bytearray(b'') ERROR:root:Error with device ASRL/dev/ttyUSB0::INSTR: VI_ERROR_TMO (-1073807339): Timeout expired before operation completed. DEBUG:pyvisa:USB0::11975::25344::800070020756710009::0::INSTR - opening ... DEBUG:pyvisa:USB0::11975::25344::800070020756710009::0::INSTR - is open with session 1082917 DEBUG:pyvisa:ASRL/dev/ttyUSB0::INSTR - closing DEBUG:pyvisa:ASRL/dev/ttyUSB0::INSTR - is closed DEBUG:pyvisa:USB0::11975::25344::800070020756710009::0::INSTR - reading 20480 bytes (last status <StatusCode.success_max_count_read: 1073676294>) ERROR:pyvisa:Unknown attribute 1073676342 (0x3fff0036 - VI_ATTR_SUPPRESS_END_EN) Traceback (most recent call last): File "/usr/lib/python3/dist-packages/pyvisa_py/sessions.py", line 669, in get_attribute return self._get_attribute(attribute) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/usb.py", line 207, in _get_attribute raise UnknownAttribute(attribute) pyvisa_py.sessions.UnknownAttribute: Unknown attribute 1073676342 (0x3fff0036 - VI_ATTR_SUPPRESS_END_EN) DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - opening ... DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - is open with session 4817422 DEBUG:pyvisa:USB0::11975::25344::800070020756710009::0::INSTR - closing DEBUG:pyvisa:USB0::11975::25344::800070020756710009::0::INSTR - is closed Traceback (most recent call last): File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 256, in write return self.usb_send_ep.write(data) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/usb/core.py", line 408, in write return self.device.write(self, data, timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/usb/core.py", line 989, in write return fn( ^^^ File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 837, in bulk_write return self.write(self.lib.libusb_bulk_transfer, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 938, in write _check(retval) File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 602, in _check raise USBTimeoutError(_strerror(ret), ret, _libusb_errno[ret]) usb.core.USBTimeoutError: [Errno 110] Operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/home/user/Desktop/Build_1_Test/temp_mini.py", line 23, in idn = inst.query("*IDN?") ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.12/dist-packages/pyvisa/resources/messagebased.py", line 641, in query self.write(message) File "/usr/local/lib/python3.12/dist-packages/pyvisa/resources/messagebased.py", line 196, in write count = self.write_raw(message.encode(enco)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.12/dist-packages/pyvisa/resources/messagebased.py", line 156, in write_raw return self.visalib.write(self.session, message)[0] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/highlevel.py", line 543, in write written, status_code = self.sessions[session].write(data) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/usb.py", line 179, in write count = self.interface.write(data) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 436, in write bytes_sent += raw_write(data) ^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 258, in write raise ValueError(str(e)) ValueError: [Errno 110] Operation timed out DEBUG:pyvisa:Closing ResourceManager (session: 8724403) DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - closing DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - is closed ##################################################### Code : import logging import pyvisa

Configure logging

logging.basicConfig(level=logging.DEBUG)

Initialize the resource manager

rm = pyvisa.ResourceManager("@py")

List all connected resources

devices = rm.list_resources() print(devices)

Dictionary to store identified devices

identified_devices = {}

Loop through each device and try to identify it

for device in devices: try: if "GPIB" in device or "USB0::" in device: inst = rm.open_resource(device) inst.timeout = 5000 # Set a longer timeout (in milliseconds) if needed idn = inst.query("*IDN?") identified_devices[device] = idn else: identified_devices[device] = "Non-GPIB/USB device, identification not attempted" except pyvisa.errors.VisaIOError as e: logging.error(f"Error with device {device}: {e}") identified_devices[device] = "Error during identification"

Print the identified devices

for device, idn in identified_devices.items(): print(f"{device}: {idn}") ##################################################################### couldn't identify the problem yet

arr-ee commented 3 months ago

Interesting — thank you for debug logging, it is clear you've spent time digging into this. It appears that both your USB devices encounter issues, but different ones.

USB0::11975::25344::800070020756710009::0::INSTR, which appears to be an ITECH something, is hitting precisely https://github.com/pyvisa/pyvisa-py/issues/293 — an issue that's been fixed three years ago.

Keysight device appears to be timeouting on write, which is also unusual.

Could you please post the following:

output of pyvisa-info — I am specifically interested in versions;
debug output of cut down test script that only accesses the keysight instrument from clean state, i.e. reconnect the usb cable. I doubt the issue is in one session poisoning others, but I'd rather exclude it completely.

Thanks!

ahmedyahia1060 commented 3 months ago

the first device is working and i cancommunicate , the problem is with the agilent one

I am using the latest build from development but befor that i was using latest offical version from pyvisa they both produce same error for the ouput pyvisa-info pyvisa-info Machine Details: Platform ID: Linux-6.8.0-39-generic-x86_64-with-glibc2.39 Processor: x86_64

Python: Implementation: CPython Executable: /home/user/Desktop/Build_1_Test/myenv/bin/python3 Version: 3.12.3 Compiler: GCC 13.2.0 Architecture: ('x86', 64) Build: Apr 10 2024 05:33:47 (#main) Unicode: UCS4

PyVISA Version: 1.14.2.dev64+g6fb569d

Backends: ivi: Version: 1.14.2.dev64+g6fb569d (bundled with PyVISA) Binary library: Not found py: Version: 0.7.2 ASRL INSTR: Available via PySerial (3.5) TCPIP INSTR: Available Resource discovery:

VXI-11: partial (psutil not installed)
hislip: disabled (zeroconf not installed) TCPIP SOCKET: Available USB INSTR: Please install PyUSB to use this resource type. No module named 'usb' USB RAW: Please install PyUSB to use this resource type. No module named 'usb' VICP INSTR: Please install PyVICP to use this resource type. GPIB INSTR: Please install linux-gpib (Linux) or gpib-ctypes (Windows, Linux) to use this resource type. Note that installing gpib-ctypes will give you access to a broader range of functionalities. No module named 'gpib' GPIB INTFC: Please install linux-gpib (Linux) or gpib-ctypes (Windows, Linux) to use this resource type. Note that installing gpib-ctypes will give you access to a broader range of functionalities. No module named 'gpib'

ahmedyahia1060 commented 3 months ago

the second point I cant understand well , I am out of the lap now and I will try it when somone go there , I have tried to unplug and plug usb then try but to be honest there were always another device connected Thanks

ahmedyahia1060 commented 3 months ago

I reconnected the agilent device , after restarting laptop, power cycle the counter . I got the same ouput the error in the write command DEBUG:pyvisa:SerialSession was correctly imported. DEBUG:pyvisa:USBSession and USBRawSession were correctly imported. DEBUG:pyvisa:TCPIPSession was correctly imported. DEBUG:pyvisa:GPIBSession was not imported No module named 'gpib'. DEBUG:pyvisa:Created library wrapper for py DEBUG:pyvisa:Created ResourceManager with session 3974861 ('ASRL/dev/ttyS0::INSTR', 'ASRL/dev/ttyS1::INSTR', 'ASRL/dev/ttyS2::INSTR', 'ASRL/dev/ttyS3::INSTR', 'ASRL/dev/ttyS5::INSTR', 'ASRL/dev/ttyS6::INSTR', 'ASRL/dev/ttyS7::INSTR', 'ASRL/dev/ttyS8::INSTR', 'ASRL/dev/ttyS9::INSTR', 'ASRL/dev/ttyS10::INSTR', 'ASRL/dev/ttyS11::INSTR', 'ASRL/dev/ttyS12::INSTR', 'ASRL/dev/ttyS13::INSTR', 'ASRL/dev/ttyS14::INSTR', 'ASRL/dev/ttyS15::INSTR', 'ASRL/dev/ttyS16::INSTR', 'ASRL/dev/ttyS17::INSTR', 'ASRL/dev/ttyS18::INSTR', 'ASRL/dev/ttyS19::INSTR', 'ASRL/dev/ttyS20::INSTR', 'ASRL/dev/ttyS21::INSTR', 'ASRL/dev/ttyS22::INSTR', 'ASRL/dev/ttyS23::INSTR', 'ASRL/dev/ttyS24::INSTR', 'ASRL/dev/ttyS25::INSTR', 'ASRL/dev/ttyS26::INSTR', 'ASRL/dev/ttyS27::INSTR', 'ASRL/dev/ttyS28::INSTR', 'ASRL/dev/ttyS29::INSTR', 'ASRL/dev/ttyS30::INSTR', 'ASRL/dev/ttyS31::INSTR', 'ASRL/dev/ttyS4::INSTR', 'USB0::2391::6407::MY59370120::0::INSTR') DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - opening ... DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - is open with session 6392229 Traceback (most recent call last): File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 256, in write return self.usb_send_ep.write(data) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/usb/core.py", line 408, in write return self.device.write(self, data, timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/usb/core.py", line 989, in write return fn( ^^^ File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 837, in bulk_write return self.write(self.lib.libusb_bulk_transfer, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 938, in write _check(retval) File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 602, in _check raise USBTimeoutError(_strerror(ret), ret, _libusb_errno[ret]) usb.core.USBTimeoutError: [Errno 110] Operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/home/user/Desktop/Build_1_Test/temp_mini.py", line 23, in idn = inst.query("*IDN?") ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.12/dist-packages/pyvisa/resources/messagebased.py", line 641, in query self.write(message) File "/usr/local/lib/python3.12/dist-packages/pyvisa/resources/messagebased.py", line 196, in write count = self.write_raw(message.encode(enco)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.12/dist-packages/pyvisa/resources/messagebased.py", line 156, in write_raw return self.visalib.write(self.session, message)[0] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/highlevel.py", line 543, in write written, status_code = self.sessions[session].write(data) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/usb.py", line 179, in write count = self.interface.write(data) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 436, in write bytes_sent += raw_write(data) ^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 258, in write raise ValueError(str(e)) ValueError: [Errno 110] Operation timed out DEBUG:pyvisa:Closing ResourceManager (session: 3974861) DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - closing DEBUG:pyvisa:USB0::2391::6407::MY59370120::0::INSTR - is closed

ahmedyahia1060 commented 3 months ago

After using the pyvisa code I cant back control on device using keysight connection expert

ahmedyahia1060 commented 3 months ago

I tried this code :

import pyvisa

def initialize_resource_manager():
    try:
        rm = pyvisa.ResourceManager()
        return rm
    except Exception as e:
        print(f"Failed to initialize resource manager: {e}")
        exit(1)

def identify_device(rm, visa_resource):
    try:
        inst = rm.open_resource(visa_resource)
        inst.timeout = 5000  # Set a longer timeout (in milliseconds) if needed
        idn = inst.query("*IDN?")
        inst.close()
        return idn
    except pyvisa.errors.VisaIOError as e:
        print(f"VISA IO Error with device {visa_resource}: {e}")
        return None
    except Exception as e:
        print(f"Unexpected error with device {visa_resource}: {e}")
        return None

def measure_frequency(rm, visa_resource):
    try:
        inst = rm.open_resource(visa_resource)
        inst.timeout = 5000  # Set a longer timeout (in milliseconds) if needed

        # Setup the device for frequency measurement
        inst.write("CONF:FREQ")

        # Initiate measurement
        frequency = inst.query("READ?")

        inst.close()
        return frequency
    except pyvisa.errors.VisaIOError as e:
        print(f"VISA IO Error with device {visa_resource}: {e}")
        return None
    except Exception as e:
        print(f"Unexpected error with device {visa_resource}: {e}")
        return None

def main():
    rm = initialize_resource_manager()

    # Define the specific VISA resource
    visa_resource = "USB0::0x0957::0x1907::MY59370120::INSTR"

    # Identify the device
    idn = identify_device(rm, visa_resource)
    if idn:
        print(f"Identification response for {visa_resource}: {idn}")

    # Measure frequency
    frequency = measure_frequency(rm, visa_resource)
    if frequency:
        print(f"Measured frequency for {visa_resource}: {frequency} Hz")

if __name__ == "__main__":
    main()

################################################################### it worked on windows completely fine but on linux it doesnt work , same error appear is there anythin you have in mind ?

ahmedyahia1060 commented 3 months ago

@arr-ee did you get the chance to look at that ?

arr-ee commented 3 months ago

So,

the second point I cant understand well , I am out of the lap now and I will try it when somone go there, I have tried to unplug and plug usb then try but to be honest there were always another device connected

I was asking you to change your test code to only query device in question — you have done so in the last snippet you posted, thanks!

After using the pyvisa code I cant back control on device using keysight connection expert

This is to be expected — pyvisa-py detaches kernel USBTMC driver from the device since it implements USBTMC in userspace => after attempting to talk to the device via pyvisa-py (not via pyvisa + vendor VISA driver) you need to re-attach the device to re-enable kernel USBTMC driver.

https://github.com/pyvisa/pyvisa-py/issues/443#issuecomment-2259895806 File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 436, in write bytes_sent += raw_write(data) ^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/pyvisa_py/protocols/usbtmc.py", line 258, in write raise ValueError(str(e)) ValueError: [Errno 110] Operation timed out

This does not make sense to me. Line 258 is not in write in pyvisa-py 0.7.2 (latest release) nor in main: https://github.com/pyvisa/pyvisa-py/blob/32ca1d5848e7a1a0a91f4c5ca907c81f7e9b5c6c/pyvisa_py/protocols/usbtmc.py#L258

Another thing that does not make sense to me is that we're getting a timeout error from the usb library here, yet from your previous message showing pyvisa-info output:

USB INSTR: Please install PyUSB to use this resource type. No module named 'usb'

Given that same code works on windows but not on linux, and given the oddness I've outlined above, I suggest we try to reset (figuratively speaking) and try the following:

Add pyvisa.log_to_screen() to the beginning of the script you last posted.
Please post output of pyvisa-info and from running the script you posted from both machines.

I understand that it might feel like we're walking in circles, but what I am seeing so far does not make sense.

pyvisa / pyvisa-py

[COM] Communication issue with [keysight 53230A ] using USB #443

Instrument details

Output of `pyvisa-info`

List all connected VISA devices

Configure logging

Initialize the resource manager

List all connected resources

Dictionary to store identified devices

Loop through each device and try to identify it

Print the identified devices

pyvisa / pyvisa-py

[COM] Communication issue with [keysight 53230A ] using USB #443

Instrument details

Output of pyvisa-info

List all connected VISA devices

Configure logging

Initialize the resource manager

List all connected resources

Dictionary to store identified devices

Loop through each device and try to identify it

Print the identified devices

Output of `pyvisa-info`