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from flojoy import VisaDevice, flojoy, DataContainer from flojoy.connection_manager import DeviceConnectionManager from typing import Optional from qcodes.instrument_drivers.Keysight import Keysight33512B from usb.core import USBError @flojoy() def CONNECTION_33510B( device: VisaDevice, default: Optional[DataContainer] = None, ) -> Optional[DataContainer]: """Connect Flojoy to a 33510B function generator. The connection is made with the VISA address in the Flojoy UI. This node should also work with compatible Keysight 33XXX wavefunction generators (although they are untested). Parameters ---------- device: VisaDevice The VISA address to connect to. Returns ------- DataContainer Optional: None """ try: ks = Keysight33512B( "ks", device.get_id(), visalib="@py", device_clear=False, ) except USBError as err: raise Exception( "USB port error. Trying unplugging+replugging the port." ) from err DeviceConnectionManager.register_connection(device, ks) return None
In this example, we turn the wavefunction generation of a Keysight 33510B on.
We must first add the
CONNECTION_33510B node. This will create the connection to the instrument at the beginning of the app. To allow this we must set the
VISA address for this (and all subsequent
33510B nodes). If the address does not appear in the parameters you may have to press
REFRESH in the
HARDWARE MANAGER tab.
We add two
ON_OFF_33510B nodes as well as the
TEXT_VIEW node to view the summary of the changes for each one. For the two
ON_OFF_33510B we change the channel parameter (to
ch2) to as well as changing
on_off. The node simply turns the wavefunction generation on or off for the chosen channel. In this example we turn Channel 1 (
ch1) off and Channel 2 (