CONNECT_DMM7510

Open a VISA connection to a Keithley DMM7510. Also sets the communication language to TSP. Params: device : VisaDevice The connected VISA device. Returns: device_addr : TextBlob The IP or VISA address of the VISA device.

Python Code

from flojoy import VisaDevice, flojoy, TextBlob
from flojoy.connection_manager import DeviceConnectionManager


@flojoy
def CONNECT_DMM7510(
    device: VisaDevice,
) -> TextBlob:
    """Open a VISA connection to a Keithley DMM7510.

    Also sets the communication language to TSP.

    Parameters
    ----------
    device: VisaDevice
        The connected VISA device.

    Returns
    -------
    device_addr: TextBlob
        The IP or VISA address of the VISA device.
    """

    device_addr = device.get_address()

    dmm = DeviceConnectionManager.tm.add_dmm(device_addr)
    dmm.write("*LANG TSP")
    lang = dmm.query("*LANG?")
    if lang != "TSP":
        raise ValueError(
            "Command set language not set correctly. Try setting to 'TSP' manually."
        )

    DeviceConnectionManager.register_connection(device, dmm)

    return TextBlob(text_blob=device_addr)

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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.