DISPLAY_FSV

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The DISPLAY_FSV block turns the display on or off during remote control. The instrument may be faster with display_on = False. Requires a CONNECTION_FSV 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 R&S network analyzers. Params: connection : VisaConnection The VISA address (requires the CONNECTION_FSV node). display_on : float Keep the display on? The FSV runs faster when off. Returns: out : String Display on or off.

Python Code

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


@flojoy(inject_connection=True)
def DISPLAY_FSV(
    connection: VisaConnection,
    display_on: bool = False,
    default: Optional[DataContainer] = None,
) -> String:
    """The DISPLAY_FSV block turns the display on or off during remote control.

    The instrument may be faster with display_on = False.

    Requires a CONNECTION_FSV 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 R&S network analyzers.

    Parameters
    ----------
    connection: VisaConnection
        The VISA address (requires the CONNECTION_FSV node).
    display_on: float
        Keep the display on? The FSV runs faster when off.

    Returns
    -------
    String
        Display on or off.
    """

    rohde = connection.get_handle()

    if display_on:
        rohde.write("SYST:DISP:UPD ON")
        s = "Display: ON"
    else:
        rohde.write("SYST:DISP:UPD OFF")
        s = "Display: OFF"

    return String(s=s)

Find this Flojoy Block on GitHub

Videos

Read FM Radio Signals using Flojoy

Example App

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In this example, the Rohde & Schwarz FSV Signal Analyzer is used to view the FM radio range (86-110 MHz).

First 4 FSV nodes were added: CONNECTION_FSV, SWEEP_SETTINGS_FSV, INIT_SWEEP_FSV, and EXTRACT_SWEEP_FSV. A LINE node was also added. The VISA address was set for the 4 instrument nodes. The range of the signal analyzer sweep was set with SWEEP_SETTINGS_FSV (start = 86, stop = 110 MHz).

The nodes were then connected as shown in the image, and the app was run.