DIGITS_DMM7510

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Changes the number of digits for measurements for the DMM7510. Less digits is faster (but less accurate). Requires a CONNECT_DMM7510 block to create the connection. Params: connection : VisaConnection The VISA address (requires the CONNECTION_DMM7510 block). digits : select, default=7.5, Number of digits for the DMM measurements? Returns: out : String Measurement settings

Python Code

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


@flojoy(inject_connection=True)
def DIGITS_DMM7510(
    connection: VisaConnection,
    input: Optional[DataContainer] = None,
    digits: Literal["3.5", "4.5", "5.5", "6.5", "7.5"] = "7.5",
) -> String:
    """Changes the number of digits for measurements for the DMM7510.

    Less digits is faster (but less accurate).

    Requires a CONNECT_DMM7510 block to create the connection.

    Parameters
    ----------
    connection : VisaConnection
        The VISA address (requires the CONNECTION_DMM7510 block).
    digits : select, default=7.5,
        Number of digits for the DMM measurements?

    Returns
    -------
    String
        Measurement settings
    """

    dmm = connection.get_handle()

    match digits:
        case "3.5":
            dmm.commands.dmm.measure.displaydigits = "dmm.DIGITS_3_5"
        case "4.5":
            dmm.commands.dmm.measure.displaydigits = "dmm.DIGITS_4_5"
        case "5.5":
            dmm.commands.dmm.measure.displaydigits = "dmm.DIGITS_5_5"
        case "6.5":
            dmm.commands.dmm.measure.displaydigits = "dmm.DIGITS_6_5"
        case "7.5":
            dmm.commands.dmm.measure.displaydigits = "dmm.DIGITS_7_5"

    return String(s=f"Digits: {digits}")

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Example App

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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.