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#
# 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, Channel, SCPIUnknownMixin
from pymeasure.instruments.validators import strict_discrete_set, strict_range
log = logging.getLogger(__name__)
log.addHandler(logging.NullHandler())
class PSChannel(Channel):
"""Implementation of a Keithley 2200 channel."""
VOLTAGE_RANGE = [0, 70]
CURRENT_RANGE = [0, 45]
output_enabled = Instrument.control(
"SOURCE:OUTP:ENAB?",
"SOURCE:OUTP:ENAB %d",
""" Control the output state.""",
validator=strict_discrete_set,
values={True: 1, False: 0},
map_values=True,
)
voltage_setpoint = Instrument.control(
"VOLT?",
"VOLT %g",
""" Control output voltage in Volts.""",
validator=strict_range,
values=VOLTAGE_RANGE,
)
current_limit = Instrument.control(
"CURR?",
"CURR %g",
""" Control output current in Amps.""",
validator=strict_range,
values=CURRENT_RANGE,
)
current = Instrument.measurement(
"MEAS:CURR?",
""" Measure the current in Amps.""",
)
voltage = Instrument.measurement(
"MEAS:VOLT?",
""" Measure the voltage in Volts.""",
)
power = Instrument.measurement(
"MEAS:POW?",
""" Measure the power in watts.""",
)
voltage_limit = Instrument.control(
"VOLT:LIM?",
"VOLT:LIM %g",
""" Control the maximum voltage that can be set.""",
validator=strict_range,
values=VOLTAGE_RANGE,
)
voltage_limit_enabled = Instrument.control(
"VOLT:LIM:STAT?",
"VOLT:LIM:STAT %d",
""" Control whether the maximum voltage limit is enabled.""",
validator=strict_discrete_set,
values={True: 1, False: 0},
map_values=True,
)
def insert_id(self, command):
return f"INST:SEL CH{self.id};{command}"
class Keithley2200(SCPIUnknownMixin, Instrument):
"""Represents the Keithley 2200 Power Supply."""
def __init__(self, adapter, name="Keithley2200", **kwargs):
super().__init__(adapter, name, **kwargs)
ch_1 = Instrument.ChannelCreator(PSChannel, 1)
ch_2 = Instrument.ChannelCreator(PSChannel, 2)
ch_3 = Instrument.ChannelCreator(PSChannel, 3)
display_enabled = Instrument.control(
"DISP?",
":DISP %d",
"""Control whether the display is enabled.""",
validator=strict_discrete_set,
values={True: 1, False: 0},
map_values=True,
)
display_text_data = Instrument.control(
":DISP:TEXT:DATA?",
":DISP:TEXT:DATA '%s'",
"""Control text to be displayed(32 characters).""",
get_process=lambda v: v.replace('"', ""),
)
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