BURST_MODE_33510B

Turn the Burst mode of a supported function generator on or off. You can set various settings for the triggering of the bursts as well. The burst mode is way to have signals come in "bursts" that are triggered externally or with a timer for instance. Requires a CONNECTION_33510B node at the start of the app to connect with the instrument. The VISA address will then be listed under 'connection'. This node should also work with compatible Keysight 33XXX wavefunction generators (although they are untested). Params: connection : VisaConnection The VISA address (requires the CONNECTION_MDO3XXX node). on_off : str Turn the burst mode on or off. channel : str The channel to modify the burst mode for. trigger_source : str Set the trigger_source (e.g. externally or timed). trigger_delay : float Delay the burst by this number of seconds after a trigger. trigger_slope : str If triggering is external, trigger on a positive or negative slope. burst_mode : str Set the burst mode for the WFG. burst_ncycles : int How many cycles to have in one burst. burst_phase : float What phase to start the burst with, in degrees. burst_polarity : str The polarity of the burst in Gated mode, normal or inverted. Returns: out : DataContainer String: summary of burst mode settings.

Python Code

from flojoy import flojoy, DataContainer, String, VisaConnection
from typing import Optional, Literal


@flojoy(inject_connection=True)
def BURST_MODE_33510B(
    connection: VisaConnection,
    on_off: Literal["ON", "OFF"] = "OFF",
    channel: Literal["ch1", "ch2"] = "ch1",
    trigger_source: Literal["EXT", "IMM", "TIM"] = "TIM",
    trigger_delay: float = 0,
    trigger_slope: Literal["POS", "NEG"] = "POS",
    trigger_timer: float = 1e-3,
    burst_mode: Literal["N Cycle", "Gated"] = "N Cycle",
    burst_ncycles: int = 1,
    burst_phase: float = 0,
    burst_polarity: Literal["NORM", "INV"] = "NORM",
    default: Optional[DataContainer] = None,
) -> String:
    """Turn the Burst mode of a supported function generator on or off.

    You can set various settings for the triggering of the bursts as well.
    The burst mode is way to have signals come in "bursts" that are triggered
    externally or with a timer for instance.

    Requires a CONNECTION_33510B node at the start of the app to connect with
    the instrument. The VISA address will then be listed under 'connection'.

    This node should also work with compatible Keysight 33XXX wavefunction
    generators (although they are untested).

    Parameters
    ----------
    connection: VisaConnection
        The VISA address (requires the CONNECTION_MDO3XXX node).
    on_off: str
        Turn the burst mode on or off.
    channel: str
        The channel to modify the burst mode for.
    trigger_source: str
        Set the trigger_source (e.g. externally or timed).
    trigger_delay: float
        Delay the burst by this number of seconds after a trigger.
    trigger_slope: str
        If triggering is external, trigger on a positive or negative slope.
    burst_mode: str
        Set the burst mode for the WFG.
    burst_ncycles: int
        How many cycles to have in one burst.
    burst_phase: float
        What phase to start the burst with, in degrees.
    burst_polarity: str
        The polarity of the burst in Gated mode, normal or inverted.

    Returns
    -------
    DataContainer
        String: summary of burst mode settings.
    """

    ks = connection.get_handle()

    channel_str = channel
    channel = getattr(ks, channel)

    channel.trigger_source(trigger_source)
    assert trigger_delay >= 0, "trigger_delay must be greater than or equal to zero."
    channel.trigger_delay(trigger_delay)

    if trigger_source == "EXT":
        channel.trigger_slope(trigger_slope)

    if trigger_source == "TIM":
        assert (
            trigger_timer >= 1e-6
        ), "trigger_timer must be greater than or equal to 1us."
        channel.trigger_timer(trigger_timer)

    if on_off == "OFF":
        channel.burst_state(on_off)

    assert (
        -360.0 <= burst_phase <= 360.0
    ), "The phase must be between -360 and 360 degrees."
    channel.burst_mode(burst_mode)
    channel.burst_phase(burst_phase)

    if burst_mode == "N Cycle":
        assert burst_ncycles > 0, "burst_ncycles must be greater than 0."
        channel.burst_ncycles(burst_ncycles)

    if burst_mode == "Gated":
        channel.burst_polarity(burst_polarity)

    if on_off == "ON":
        channel.burst_state(on_off)
    ks.close()

    return String(s=f"{channel_str} burst: {on_off}")

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In this example, we set the burst mode settings on a Keysight 33500B.

Note

The 33510B nodes should also work with other 33XXX wavefunction generators. However, these are untested as of yet.

We must first add the CONNECTION_33510B node. This will create the connection to the instrument at the beginning of the app. To allow this we must set the VISA address for this (and all subsequent 33510B nodes). If the address does not appear in the parameters you may have to press REFRESH in the HARDWARE MANAGER tab.

We add the BURST_MODE_33510B node as well as the TEXT_VIEW node to view the summary of the burst mode.

We then must set the node parameters. First, the VISA address must be set for all nodes as mentioned above. We then must set the burst mode settings. Then you can set the trigger method to TIM (i.e. timed) and ncycles to 5.

The 33510B cannot view the waveform directly. An oscilloscope can be used optionally. to view the burst mode waveform.