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# -*- coding: utf-8 -*- |
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""" |
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This module controls the Stanford Instruments CTC100 temperature |
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controller (also rebranded as CryoVac TIC500, etc). |
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Qudi is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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Qudi is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with Qudi. If not, see <http://www.gnu.org/licenses/>. |
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Copyright (c) the Qudi Developers. See the COPYRIGHT.txt file at the |
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top-level directory of this distribution and at <https://github.com/Ulm-IQO/qudi/> |
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""" |
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from core.base import Base |
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import visa |
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class CTC100(Base): |
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""" |
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This module implements communication with the Edwards turbopump and |
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vacuum equipment. |
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""" |
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_modclass = 'ctc100' |
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_modtype = 'hardware' |
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# connectors |
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_out = {'ctc': 'CTC'} |
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def on_activate(self, e): |
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config = self.getConfiguration() |
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self.connect(config['interface']) |
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def on_deactivate(self, e): |
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self.disconnect() |
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def connect(self, interface): |
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""" Connect to Instrument. |
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@param str interface: visa interface identifier |
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@return bool: connection success |
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""" |
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try: |
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self.rm = visa.ResourceManager() |
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self.inst = self.rm.open_resource(interface, baud_rate=9600, term_chars='\n', send_end=True) |
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except visa.VisaIOError as e: |
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self.log.exception("") |
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return False |
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else: |
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return True |
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def disconnect(self): |
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""" |
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Close the connection to the instrument. |
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""" |
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self.inst.close() |
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self.rm.close() |
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def get_channel_names(self): |
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return self.inst.ask('getOutputNames?').split(', ') |
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def is_channel_selected(self, channel): |
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return self.inst.ask(channel.replace(" ", "") + '.selected?' ).split(' = ')[-1] == 'On' |
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def is_output_on(self): |
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result = self.inst.ask('OutputEnable?').split()[2] |
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return result == 'On' |
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def get_temp_by_name(self, name): |
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return self.inst.ask_for_values('{}.value?'.format(name))[0] |
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def get_all_outputs(self): |
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names = self.get_channel_names() |
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raw = self.inst.ask('getOutputs?').split(', ') |
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values = [] |
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for substr in raw: |
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values.append(float(substr)) |
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return dict(zip(names, values)) |
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def get_selected_channels(self): |
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names = self.get_channel_names() |
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values = [] |
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for channel in names: |
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values.append(self.is_channel_selected(channel)) |
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return dict(zip(names, values)) |
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def enable_output(self): |
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if self.is_output_on(): |
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return True |
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else: |
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result = self.inst.ask('OutputEnable = On').split()[2] |
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return result == 'On' |
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def disable_output(self): |
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if self.is_output_on(): |
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result = self.inst.ask('OutputEnable = Off').split()[2] |
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return result == 'Off' |
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else: |
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return True |
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def get_setpoint(self, channel): |
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return self.inst.ask_for_values('{}.PID.setpoint?'.format(channel))[0] |
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def set_setpoint(self, channel, setpoint): |
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return self.inst.ask_for_values('{}.PID.setpoint = {}'.format(channel, setpoint))[0] |
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def get_pid_mode(self, channel): |
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return self.inst.ask('{}.PID.Mode?'.format(channel)).split(' = ')[1] |
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def set_pid_mode(self, channel, mode): |
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return self.inst.ask('{}.PID.Mode = {}'.format(channel, mode)).split(' = ')[1] |
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def channel_off(self, channel): |
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return self.inst.ask('{}.Off'.format(channel)).split(' = ')[1] |
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def get_value(self, channel): |
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try: |
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return self.inst.ask_for_values('{}.Value?'.format(channel))[0] |
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except: |
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return NonNonee |
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def set_value(self, channel, value): |
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return self.inst.ask_for_values('{}.Value = {}'.format(channel, value))[0] |
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Ulm-IQO /
qudi
