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TASK_WAIT_UNTIL_DONE

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Waits for the measurement or generation to complete. Use this method to ensure that the specified operation is complete before you stop the task. **Compatibility:** Compatible with National Instruments devices that utilize NI-DAQmx. This block is designed for use with Windows and Linux systems due to NI driver availability. Ensure you have installed the NI-DAQmx runtime from https://www.ni.com/en/support/downloads/drivers/download.ni-daq-mx.html. Params: task_name : str The name of the task to wait for. timeout : float Specifies the maximum amount of time in seconds to wait for the measurement or generation to complete. This method returns an error if the time elapses. Returns: out : Optional[DataContainer] Return the input
Python Code
from flojoy import flojoy, DataContainer, DeviceConnectionManager
from typing import Optional


@flojoy(deps={"nidaqmx": "0.9.0"})
def TASK_WAIT_UNTIL_DONE(
    task_name: str,
    timeout: float = 10.0,
    default: Optional[DataContainer] = None,
) -> Optional[DataContainer]:
    """Waits for the measurement or generation to complete.

    Use this method to ensure that the specified operation is complete before you stop the task.

    **Compatibility:**
    Compatible with National Instruments devices that utilize NI-DAQmx.

    This block is designed for use with Windows and Linux systems due to NI driver availability. Ensure you have installed the NI-DAQmx runtime from https://www.ni.com/en/support/downloads/drivers/download.ni-daq-mx.html.

    Parameters
    ----------
    task_name: str
        The name of the task to wait for.
    timeout : float
        Specifies the maximum amount of time in seconds to wait for the measurement or generation to complete. This method returns an error if the time elapses.

    Returns
    -------
    Optional[DataContainer]
        Return the input
    """

    task = DeviceConnectionManager.get_connection(task_name).get_handle()
    task.wait_until_done(timeout=timeout)
    return default

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Example App

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React Flow mini map

This app shows how to use a thermocouple and voltage input blocks for with National Instruments Compact DAQ modules.

Blocks used:

  • CREATE_TASK_ANALOG_INPUT_THERMOCOUPLE
  • CREATE_TASK_ANALOG_INPUT_VOLTAGE
  • CONFIG_TASK_SAMPLE_CLOCK_TIMINGS
  • TASK_WAIT_UNTIL_DONE
  • 2x READ_TASK
  • 2x LINE

The blocks were connected as shown, and the app was run. The result displayed the first 100 samples taken from the two devicesโ€™ buffer for multiple channels. The app ensures that the operation is complete for the thermocouple task before stopping it.