# This file is part of the scanning-squid package.
#
# Copyright (c) 2018 Logan Bishop-Van Horn
#
# 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
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# THE SOFTWARE.
from qcodes.instrument.visa import VisaInstrument
from typing import List, Dict, Union, Optional, Sequence, Any, Tuple
import qcodes.utils.validators as vals
import numpy as np
import visa
import time
[docs]class EL320P(VisaInstrument):
"""Qcodes driver for AIM & Thurlby Thandar EL320P power supply.
"""
def __init__(self, name, address, **kwargs):
super().__init__(name, address, terminator='\r\n', **kwargs)
self.visa_handle.baud_rate = 9600
self.add_parameter(
name='voltage_set',
label='Voltage setting',
unit='V',
get_cmd='V?',
get_parser=self._get_parser,
set_cmd='V {}',
vals=vals.Numbers(0,30)
)
self.add_parameter(
name='voltage_out',
label='Actual output voltage',
unit='V',
get_cmd='VO?',
get_parser=self._get_parser
)
self.add_parameter(
name='current_set',
label='Current setting',
unit='A',
get_cmd='I?',
get_parser=self._get_parser,
set_cmd='I {}',
vals=vals.Numbers(0.01,2)
)
self.add_parameter(
name='current_out',
label='Actual output current',
unit='A',
get_cmd='IO?',
get_parser=self._get_parser
)
self.add_parameter(
name='mode',
label='Mode',
unit='',
get_cmd='M?',
get_parser=str
)
self.add_parameter(
name='output',
label='Output status',
unit='',
get_cmd='OUT?',
get_parser=self._output_parser,
set_cmd='{}',
vals=vals.Enum('ON', 'OFF')
)
self.add_parameter(
name='error',
label='Error message',
unit='',
get_cmd='ERR?',
get_parser=self._error_parser,
val_mapping={'OK': 0, 'Command not recognized': 1, 'Value outside of instrument limits': 2},
vals=vals.Enum(0,1,2)
)
self.connect_message()
def _get_parser(self, response):
return float(response[2:])
def _output_parser(self, response):
return response[4:]
def _error_parser(self, response):
return int(response[-1])