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pyvisa / pyvisa-py

A pure python PyVISA backend
https://pyvisa-py.readthedocs.io
MIT License
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[COM] Communication issue with XXX using XXX #339

Open dhunganaanish opened 1 year ago

dhunganaanish commented 1 year ago

Instrument details

Output of pyvisa-info

dhunganaanish commented 1 year ago

Model: keysight 33600A waveform generator Communication: USB

Code: from future import print_function import pyvisa from keysight_33600a import keysight_33600a pyvisa.log_to_screen() rm = pyvisa.ResourceManager('@py') rm.list_resources() inst = rm.open_resource('USB0::0x0957::0x5707::MY53803283::INSTR') print(inst.query("*IDN?"))

Result: 2022-11-04 10:45:48,535 - pyvisa - DEBUG - SerialSession was correctly imported. 2022-11-04 10:45:48,637 - pyvisa - DEBUG - USBSession and USBRawSession were correctly imported. 2022-11-04 10:45:48,646 - pyvisa - DEBUG - TCPIPSession was correctly imported. 2022-11-04 10:45:48,650 - pyvisa - DEBUG - GPIBSession was not imported No module named 'gpib'. 2022-11-04 10:45:48,650 - pyvisa - DEBUG - Created library wrapper for py 2022-11-04 10:45:48,650 - pyvisa - DEBUG - Created ResourceManager with session 3281506 2022-11-04 10:45:48,683 - pyvisa - DEBUG - USB0::0x0957::0x5707::MY53803283::0::INSTR - opening ... Traceback (most recent call last): File "C:\Users\aanis\OneDrive\Documents\python\frequency_sweep\keysight_33600a_sr830.py", line 7, in inst = rm.open_resource('USB0::0x0957::0x5707::MY53803283::INSTR',) File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa\highlevel.py", line 3284, in open_resource res.open(access_mode, open_timeout) File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa\resources\resource.py", line 278, in open self.session, status = self._resource_manager.open_bare_resource( File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa\highlevel.py", line 3209, in open_bare_resource return self.visalib.open(self.session, resource_name, access_mode, open_timeout) File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa_py\highlevel.py", line 167, in open sess = cls(session, resource_name, parsed, open_timeout) File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa_py\sessions.py", line 325, in init self.after_parsing() File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa_py\usb.py", line 81, in after_parsing self.interface = self._intf_cls( File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa_py\protocols\usbtmc.py", line 287, in init super(USBTMC, self).init(vendor, product, serial_number, **kwargs) File "C:\Users\aanis\anaconda3\lib\site-packages\pyvisa_py\protocols\usbtmc.py", line 202, in init raise ValueError( ValueError: 2 devices found: DEVICE ID 0957:5707 on Bus 000 Address 010 ================= bLength : 0x12 (18 bytes) bDescriptorType : 0x1 Device bcdUSB : 0x200 USB 2.0 bDeviceClass : 0x0 Specified at interface bDeviceSubClass : 0x0 bDeviceProtocol : 0x0 bMaxPacketSize0 : 0x40 (64 bytes) idVendor : 0x0957 idProduct : 0x5707 bcdDevice : 0x100 Device 1.0 iManufacturer : 0x4 Keysight Technologies iProduct : 0x5 33622A iSerialNumber : 0x6 MY53803283 bNumConfigurations : 0x1 CONFIGURATION 1: 0 mA ==================================== bLength : 0x9 (9 bytes) bDescriptorType : 0x2 Configuration wTotalLength : 0x45 (69 bytes) bNumInterfaces : 0x2 bConfigurationValue : 0x1 iConfiguration : 0x0 bmAttributes : 0xc0 Self Powered bMaxPower : 0x0 (0 mA) INTERFACE 0: Application Specific ====================== bLength : 0x9 (9 bytes) bDescriptorType : 0x4 Interface bInterfaceNumber : 0x0 bAlternateSetting : 0x0 bNumEndpoints : 0x3 bInterfaceClass : 0xfe Application Specific bInterfaceSubClass : 0x3 bInterfaceProtocol : 0x1 iInterface : 0x0 ENDPOINT 0x81: Bulk IN =============================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x81 IN bmAttributes : 0x2 Bulk wMaxPacketSize : 0x200 (512 bytes) bInterval : 0x0 ENDPOINT 0x2: Bulk OUT =============================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x2 OUT bmAttributes : 0x2 Bulk wMaxPacketSize : 0x200 (512 bytes) bInterval : 0x0 ENDPOINT 0x83: Interrupt IN ========================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x83 IN bmAttributes : 0x3 Interrupt wMaxPacketSize : 0x2 (2 bytes) bInterval : 0x1 INTERFACE 1: Vendor Specific =========================== bLength : 0x9 (9 bytes) bDescriptorType : 0x4 Interface bInterfaceNumber : 0x1 bAlternateSetting : 0x0 bNumEndpoints : 0x3 bInterfaceClass : 0xff Vendor Specific bInterfaceSubClass : 0xff bInterfaceProtocol : 0xff iInterface : 0x0 ENDPOINT 0x85: Bulk IN =============================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x85 IN bmAttributes : 0x2 Bulk wMaxPacketSize : 0x200 (512 bytes) bInterval : 0x0 ENDPOINT 0x4: Bulk OUT =============================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x4 OUT bmAttributes : 0x2 Bulk wMaxPacketSize : 0x200 (512 bytes) bInterval : 0x0 ENDPOINT 0x87: Interrupt IN ========================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x87 IN bmAttributes : 0x3 Interrupt wMaxPacketSize : 0x40 (64 bytes) bInterval : 0x4 DEVICE ID 0957:5707 on Bus 000 Address 011 ================= bLength : 0x12 (18 bytes) bDescriptorType : 0x1 Device bcdUSB : 0x200 USB 2.0 bDeviceClass : 0x0 Specified at interface bDeviceSubClass : 0x0 bDeviceProtocol : 0x0 bMaxPacketSize0 : 0x40 (64 bytes) idVendor : 0x0957 idProduct : 0x5707 bcdDevice : 0x100 Device 1.0 iManufacturer : 0x4 Keysight Technologies iProduct : 0x5 33622A iSerialNumber : 0x6 MY53803283 bNumConfigurations : 0x1 CONFIGURATION 1: 0 mA ==================================== bLength : 0x9 (9 bytes) bDescriptorType : 0x2 Configuration wTotalLength : 0x27 (39 bytes) bNumInterfaces : 0x1 bConfigurationValue : 0x1 iConfiguration : 0x0 bmAttributes : 0xc0 Self Powered bMaxPower : 0x0 (0 mA) INTERFACE 0: Application Specific ====================== bLength : 0x9 (9 bytes) bDescriptorType : 0x4 Interface bInterfaceNumber : 0x0 bAlternateSetting : 0x0 bNumEndpoints : 0x3 bInterfaceClass : 0xfe Application Specific bInterfaceSubClass : 0x3 bInterfaceProtocol : 0x1 iInterface : 0x0 ENDPOINT 0x81: Bulk IN =============================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x81 IN bmAttributes : 0x2 Bulk wMaxPacketSize : 0x200 (512 bytes) bInterval : 0x0 ENDPOINT 0x2: Bulk OUT =============================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x2 OUT bmAttributes : 0x2 Bulk wMaxPacketSize : 0x200 (512 bytes) bInterval : 0x0 ENDPOINT 0x83: Interrupt IN ========================== bLength : 0x7 (7 bytes) bDescriptorType : 0x5 Endpoint bEndpointAddress : 0x83 IN bmAttributes : 0x3 Interrupt wMaxPacketSize : 0x2 (2 bytes) bInterval : 0x1 Please narrow the search criteria 2022-11-04 10:45:48,720 - pyvisa - DEBUG - Closing ResourceManager (session: 3281506) [Finished in 0.787s]