Python™ Support for MCC DAQ Products

Hello - The API for the Linux and Windows Python support is platform dependent so sharing common code between the two libraries is not possible.

Was this answer helpful? Yes (1) / No (0)

It is relatively easy to use the .net openlayers dll together with the pythonet package.

Was this answer helpful? Yes (0) / No (0)

Creating your own Python wrapper to the Open Layers for Windows DLL calls would be very complex, and we cannot advise you on that. You could switch from Windows to Linux, since the DT9837A model is supported with Python via the UL for Linux. Though note that the UL for Linux API differs greatly from Open Layers, and so there is no way to leverage this Python API back into Windows. To stay with Windows, you could consider switching programming languages, from Python to C/C#/VB.

Was this answer helpful? Yes (0) / No (0)

Yes, Python supports analog input triggering when using the USB-1604HS-2AO.

Was this answer helpful? Yes (0) / No (0)

The only Python support offered for the DT9837A/B/C models is under Linux. The Windows API software is called Open Layers, and it can be found on the Data Translation section of our downloads page. Though again, there is no Python support for Open Layers and none is planned.

Was this answer helpful? Yes (0) / No (0)

The device discovery functions can be used with Measurement Computing USB, Bluetooth, and Ethernet devices. Other board types such as PCI, ISA, CIO hardware don’t support device discovery functions, and must be installed and configured with InstaCal. When running Python examples with board types that don’t support device discovery functions, set the use_device_detection variable in the example program to False.

Was this answer helpful? Yes (2) / No (0)

For a single value write to a single AO channel on a USB-3101FS, the overhead to access the USB/hardware is going be the dominant factor. Ballpark latency is 0.5 to 1 mS.

Was this answer helpful? Yes (1) / No (0)

Yes the USB-5200 series is listed as supported with Python on Windows. The USB-5200 models are primarily stand-alone logger. You must first manually configure a logging session in InstaCal (set sensor type, which channels to log, sample rate, etc). The logger cannot log to its memory card when connected to the PC. You disconnect the logger from the PC for all logging to the memory card. Normally folks then use InstaCal (or perhaps TracerDAQ), to quickly/manually convert the binary data files to text/CSV files for further analysis in Excel. There are UL datalogger calls that can be made to convert a data file, though these historically have not been popular. If a USB-5200 model is left connected to the PC 100% of the time, it does not behave like a stand-alone logger, but instead behaves like a USB-TC/TEMP, and data can be samples live via the TIn function. Again no data gets logged to the memory card when connected to the PC, so if you will use the logger always connected to the PC, then just call TIn (no need to call the Datalogger functions, which again, don’t setup or perform the data logging, they just extract data from a binary file).

Was this answer helpful? Yes (2) / No (0)

It was decided to not include event support for that release. Today we have posted an unofficial example on our knowledgebase, that you can try: http://kb.mccdaq.com/KnowledgebaseArticle50769.aspx

Was this answer helpful? Yes (1) / No (0)

If by PID you mean the hardware model’s “Product ID” that can be found using Window’s Device Manager: Locate the USB-1608FS-PLUS under DAS components. But none of our Python examples specifically ask for a PID/device ID. For our Console examples, you do not have to first run our InstaCal utility. You need only have the device attached to USB port of the PC, and then try running one of these examples: a_in.py, a_in_foreground.py, v_in.py If you are running one of our GUI examples, you must first run InstaCal to have the hardware added to its board list. Then try running one of these examples: ULAI01.PY, ULAI03.py, VIn01.py.

Was this answer helpful? Yes (0) / No (0)

from mcculw import ul from mcculw.enums import ULRange from mcculw.ul import ULError # d_config_port(board_num, port_type, direction) # board_num -> can be found in InstaCal, port_type -> FirstPortA/FirstPortB/FirstPortCL/FirstPortCH =10/11/12/13, direction -> In/Out = 2/1 ul.d_config_port(0,10,1) ul.d_config_port(0,11,1) ul.d_config_port(0,12,1) ul.d_config_port(0,13,1) # d_out(board_num, port_type, data_value) # Data value to be written in decimal[0-255] ul.d_out(0,10,15) # FIRST FOUR BITS ARE TURN ON IN FirstPortA[MAX 8 BITS] ul.d_out(0,11,15) # FIRST FOUR BITS ARE TURN ON IN FirstPortB[MAX 8 BITS] ul.d_out(0,12,15) # FirstPortCL IS CONTROLLED USING NIBBLES[MAX 4 BITS] ul.d_out(0,13,15) # FirstPortCH IS CONTROLLED USING NIBBLES[MAX 4 BITS] plesae refer universal library for help https://www.mccdaq.com/PDFs/Manuals/Mcculw_WebHelp/ULStart.htm

Was this answer helpful? Yes (0) / No (0)

Hello Sai - Our Python support, including examples programs, are available at: https://github.com/mccdaq. Try running the console example program named: digital_out.py

Was this answer helpful? Yes (1) / No (0)

MCC now has Linux support for the USB-DIO24 series, with our recent release of UL for Linux ver 1.1.0. The UL for Linux includes both Python and C/C++ support for MCC’s most popular USB devices.

Was this answer helpful? Yes (1) / No (1)