MEASUREMENT_FILTER_DMM7510

Changes the measurement filter settings for the DMM7510. Requires a CONNECT_DMM7510 block to create the connection. Params: connection : VisaConnection The VISA address (requires the CONNECTION_DMM7510 block). on_off : select, default=off Turn the filter on or off. avg_type : select, default=moving Use moving or repeating averaging. count : int, default=10 The number of counts to average. window : float, default=0 The size of the window, in percent. Returns: out : String Filter settings

Python Code

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


@flojoy(inject_connection=True)
def MEASUREMENT_FILTER_DMM7510(
    connection: VisaConnection,
    input: Optional[DataContainer] = None,
    on_off: Literal["on", "off"] = "off",
    avg_type: Literal["moving", "repeat"] = "moving",
    count: int = 10,
    window: float = 0,
) -> String:
    """Changes the measurement filter settings for the DMM7510.

    Requires a CONNECT_DMM7510 block to create the connection.

    Parameters
    ----------
    connection : VisaConnection
        The VISA address (requires the CONNECTION_DMM7510 block).
    on_off : select, default=off
        Turn the filter on or off.
    avg_type : select, default=moving
        Use moving or repeating averaging.
    count : int, default=10
        The number of counts to average.
    window : float, default=0
        The size of the window, in percent.

    Returns
    -------
    String
        Filter settings
    """
    assert 0.0 <= window <= 100.0, "The window must be between 0 and 100."
    assert count > 1, "The count must be greater than 1."

    dmm = connection.get_handle()

    if avg_type == "moving":
        dmm.commands.dmm.measure.filter.type = "dmm.FILTER_MOVING_AVG"
    else:
        dmm.commands.dmm.measure.filter.type = "dmm.FILTER_REPEAT_AVG"

    dmm.commands.dmm.measure.filter.count = count
    dmm.commands.dmm.measure.filter.window = window

    match on_off:
        case "off":
            dmm.commands.dmm.measure.filter.enable = "dmm.OFF"
        case "on":
            dmm.commands.dmm.measure.filter.enable = "dmm.ON"

    return String(s=f"Filter {on_off}")

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Example

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In this example, a DC voltage measurement was extracted from a Keithley DMM7510.

First the necessary blocks were added:

• CONNECT_DMM7510
• RESET_DMM7510
• FUNCTION_DMM7510
• DIGITS_DMM7510
• MEASUREMENT_PARAMS_DMM7510
• MEASUREMENT_FILTER_DMM7510
• READ_DMM7510
• BIG_NUMBER

The instrument address was set for each DMM7510 block. The FUNCTION_DMM7510 block was changed in order to extract the correct measurement. The parameters in DIGITS_DMM7510, MEASUREMENT_PARAMS_DMM7510, and MEASUREMENT_FILTER_DMM7510 blocks were changed as necessary. The READ_DMM7510 block was connected to the BIG_NUMBER block in order to view the reading.

The blocks were connected as shown and the app was run.