text: #
  # This file is part of the PyMeasure package.
  #
  # Copyright (c) 2013-2022 PyMeasure Developers
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  # THE SOFTWARE.
  #
  
  
  import logging
  
  from pymeasure.instruments import Instrument
  from pymeasure.instruments.validators import truncated_range
  
  from pymeasure.adapters import VISAAdapter
  
  log = logging.getLogger(__name__)
  log.addHandler(logging.NullHandler())
  
  
  class KeysightN5767A(Instrument):
      """ Represents the Keysight N5767A Power supply
      interface for interacting with the instrument.
  
      .. code-block:: python
  
      """
      ###############
      # Current (A) #
      ###############
      current_range = Instrument.control(
          ":CURR?", ":CURR %g",
          """ A floating point property that controls the DC current range in
          Amps, which can take values from 0 to 25 A.
          Auto-range is disabled when this property is set. """,
          validator=truncated_range,
          values=[0, 25],
      )
  
      current = Instrument.measurement(":MEAS:CURR?",
                                       """ Reads a setting current in Amps. """
                                       )
  
      ###############
      # Voltage (V) #
      ###############
      voltage_range = Instrument.control(
          ":VOLT?", ":VOLT %g V",
          """ A floating point property that controls the DC voltage range in
          Volts, which can take values from 0 to 60 V.
          Auto-range is disabled when this property is set. """,
          validator=truncated_range,
          values=[0, 60]
      )
  
      voltage = Instrument.measurement("MEAS:VOLT?",
                                       """ Reads a DC voltage measurement in Volts. """
                                       )
  
      #################
      # _status (0/1) #
      #################
      _status = Instrument.measurement(":OUTP?",
                                       """ Read power supply current output status. """,
                                       )
  
      def enable(self):
          """ Enables the flow of current.
          """
          self.write(":OUTP 1")
  
      def disable(self):
          """ Disables the flow of current.
          """
          self.write(":OUTP 0")
  
      def is_enabled(self):
          """ Returns True if the current supply is enabled.
          """
          return bool(self._status)
  
      def __init__(self, adapter, **kwargs):
          super().__init__(
              adapter, "Keysight N5767A power supply", **kwargs
          )
          # Set up data transfer format
          if isinstance(self.adapter, VISAAdapter):
              self.adapter.config(
                  is_binary=False,
                  datatype='float32',
                  converter='f',
                  separator=','
              )
  