USB-TEMP get BAD_DEV_TYPE when running a_in.sh

[wcmurf]

I have the USB-TEMP product. I installed the C++ and Python libraries. I'm using Ubuntu 20.04, libuldaq-1.2.1, and uldaq-1.2.3.

When I run a_in.py I get a BAD_DEV_TYPE. Is running a_in.py as instructed the wrong thing to do for USB-TEMP? What do I have to do to get a temperature reading?

Found 1 DAQ device(s):
  [0] USB-TEMP (020F5AFD)

Please select a DAQ device, enter a number between 0 and 0: 0

Connecting to USB-TEMP - please wait...

USB-TEMP ready
    Function demonstrated: ai_device.a_in()
    Channels:  0 - 3
    Input mode:  DIFFERENTIAL
    Range:  BIPPT078VOLTS

Hit ENTER to continue
 

Please enter CTRL + C to terminate the process

Active DAQ device: USB-TEMP (020F5AFD)

Traceback (most recent call last):
  File "./a_in.py", line 146, in <module>
    main()
  File "./a_in.py", line 118, in main
    data = ai_device.a_in(channel, input_mode,
  File "/u/mwm/.local/lib/python3.8/site-packages/uldaq/ai_device.py", line 87, in a_in
    raise ULException(err)
uldaq.ul_exception.ULException: ULError.BAD_DEV_TYPE: This function cannot be used with this device
 

 

Edited July 27, 2023 by wcmurf
added software versions

[Fausto]

Hello @wcmurf.

In the UL for Linux Python API (ULDAQ) examples folder, use the 't_in.py' example with your USB-TEMP device.

UL for Linux Python API Help:  https://www.mccdaq.com/PDFs/Manuals/UL-Linux/python/index.html

USB-TEMP User's Guide:  https://www.mccdaq.com/pdfs/manuals/USB-TEMP.pdf

Regards,

Fausto

[wcmurf]

On 7/27/2023 at 4:34 PM, Fausto said:

Hello @wcmurf.

In the UL for Linux Python API (ULDAQ) examples folder, use the 't_in.py' example with your USB-TEMP device.

UL for Linux Python API Help:  https://www.mccdaq.com/PDFs/Manuals/UL-Linux/python/index.html

USB-TEMP User's Guide:  https://www.mccdaq.com/pdfs/manuals/USB-TEMP.pdf

Regards,

Fausto

Hi Fausto, thanks, yes I am trying the t_in but find all the channels are disabled. When I try to set the type using set_chan_type I get uldaq.ul_exception.ULException: ULError.CONFIG_NOT_SUPPORTED: Configuration not supported

How do I get rid of disabled and configure this device?

The manual says to use the Windows software InstaCal but what about in Ubuntu?

Found 1 DAQ device(s):
  [0] USB-TEMP (020F5AFD)
SUPPORTS : TC RTD THERMISTOR SEMICONDUCTOR
Total analog input channels: 8

Connecting to USB-TEMP - please wait...

USB-TEMP ready
    Function demonstrated: ai_device.t_in()
    Channels:  0 - 7
Product ID: 8d
        Channel 0 type: DISABLED
        Channel 1 type: DISABLED
        Channel 2 type: DISABLED
        Channel 3 type: DISABLED
        Channel 4 type: DISABLED
        Channel 5 type: DISABLED
        Channel 6 type: DISABLED
        Channel 7 type: DISABLED
    Temperature scaling: CELSIUS

Hit ENTER to continue

Please enter CTRL + C to terminate the process

Active DAQ device: USB-TEMP (020F5AFD)

Channel(0) Data: -9999.000000
Channel(1) Data: -9999.000000
Channel(2) Data: -9999.000000
Channel(3) Data: -9999.000000
Channel(4) Data: -9999.000000
Channel(5) Data: -9999.000000
Channel(6) Data: -9999.000000
Channel(7) Data: -9999.000000
 

 

Edited August 1, 2023 by wcmurf

[wcmurf]

I got it working by using InstaCal on Windows and changing channel 0 from Disabled to Thermocouple.

I don't see an equivalent path to get it working with Linux. The set_chan_type function results in an error. 

Please let me know if you support Linux and there is a way to do the initial configuration.