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OUTPUT_AFG31000

Set impedances and turn the outputs on or off. This block should also work with compatible Tektronix AFG31XXX instruments. Params: connection : VisaConnection The VISA address (requires the CONNECTION_AFG31000 block). ch1 : select, default=on Turn channel 1 output on or off. ch2 : select, default=on Turn channel 2 output on or off. ch1_impedance : select, default=50 Choosen channel 1 impedance. ch2_impedance : select, default=50 Choosen channel 2 impedance Returns: out : String Placeholder
Python Code
from flojoy import flojoy, DataContainer, String, VisaConnection
from typing import Optional, Literal


@flojoy(inject_connection=True)
def OUTPUT_AFG31000(
    connection: VisaConnection,
    ch1: Literal["on", "off"] = "on",
    ch2: Literal["on", "off"] = "on",
    ch1_impedance: Literal["50", "1e6"] = "50",
    ch2_impedance: Literal["50", "1e6"] = "50",
    input: Optional[DataContainer] = None,
) -> String:
    """Set impedances and turn the outputs on or off.

    This block should also work with compatible Tektronix AFG31XXX instruments.

    Parameters
    ----------
    connection: VisaConnection
        The VISA address (requires the CONNECTION_AFG31000 block).
    ch1: select, default=on
        Turn channel 1 output on or off.
    ch2: select, default=on
        Turn channel 2 output on or off.
    ch1_impedance: select, default=50
        Choosen channel 1 impedance.
    ch2_impedance: select, default=50
        Choosen channel 2 impedance

    Returns
    -------
    String
        Placeholder
    """

    afg = connection.get_handle()

    afg.write(f"OUTPut1:IMPedance {int(ch1_impedance)}")
    afg.write(f"OUTPut2:IMPedance {int(ch2_impedance)}")
    afg.write(f"OUTPUT1:STATE {ch1}")
    afg.write(f"OUTPUT2:STATE {ch2}")

    return String(s="Set output parameters")

Find this Flojoy Block on GitHub

Videos

Control the AFG31000 Function Generator with Flojoy

Example

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React Flow mini map

In this example, an Tektronix AFG31000 is used to generate two waveforms.

First the necessary blocks were added:

  • CONNECT_AFG31000
  • RESET_AFG31000
  • 2x FUNCTION_AFG31000
  • ALIGN_PHASES_AFG31000
  • OUTPUT_AFG31000
  • SAVE_STATE_AFG31000

The instrument address was set for each AFG31000 block. Ensure the OUTPUT_AFG31000 block has both channels turn on.

The blocks were connected as shown and the app was run. The SAVE_STATE_AFG31000 block can be used to save and recall the current state of the AFG. However, you must use a OUTPUT_AFG31000 block to turn the outputs back on.

An oscilloscope was connected to the AFG31000 resulting in waveform:

image