Markus Zolliker
d681507f94
move some initialization from cfg file to source code + make 'out of calibrated range' and 'sensor break' more generic Change-Id: I3e92100fdb9c983f82665de9d8e063609cd7af5a
114 lines
4.3 KiB
Python
114 lines
4.3 KiB
Python
# *****************************************************************************
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Module authors:
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# Markus Zolliker <markus.zolliker@psi.ch>
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# *****************************************************************************
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"""interlocks for furnace"""
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import time
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from frappy.core import Module, Writable, Attached, Parameter, FloatRange, Readable,\
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BoolType, ERROR, IDLE
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from frappy.mixins import HasControlledBy
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from frappy_psi.picontrol import PImixin
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from frappy_psi.convergence import HasConvergence
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from frappy_psi.ionopimax import CurrentInput, LogVoltageInput
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import frappy_psi.tdkpower as tdkpower
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import frappy_psi.bkpower as bkpower
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class Interlocks(Module):
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input = Attached(Readable, 'the input module')
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vacuum = Attached(Readable, 'the vacuum pressure')
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wall_T = Attached(Readable, 'the wall temperature')
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htr_T = Attached(Readable, 'the heater temperature')
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main_T = Attached(Readable, 'the main temperature')
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extra_T = Attached(Readable, 'the extra temperature')
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control = Attached(Module, 'the control module')
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relais = Attached(Writable, 'the interlock relais')
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wall_limit = Parameter('maximum wall temperature', FloatRange(0, unit='degC'),
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default = 50, readonly = False)
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vacuum_limit = Parameter('maximum vacuum pressure', FloatRange(0, unit='mbar'),
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default = 0.1, readonly = False)
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htr_T_limit = Parameter('maximum htr temperature', FloatRange(0, unit='degC'),
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default = 530, readonly = False)
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main_T_limit = Parameter('maximum main temperature', FloatRange(0, unit='degC'),
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default = 530, readonly = False)
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extra_T_limit = Parameter('maximum extra temperature', FloatRange(0, unit='degC'),
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default = 530, readonly = False)
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def initModule(self):
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super().initModule()
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self._sensor_checks = [
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(self.wall_T, 'wall_limit'),
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(self.main_T, 'main_T_limit'),
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(self.extra_T, 'extra_T_limit'),
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(self.htr_T, 'htr_T_limit'),
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(self.vacuum, 'vacuum_limit'),
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]
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def doPoll(self):
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# TODO: check channels are valid
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super().doPoll()
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newstatus = None
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if self.input.status[0] >= ERROR:
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newstatus = self.input.status
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else:
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for sensor, limitname in self._sensor_checks:
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if sensor.value > getattr(self, limitname):
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newstatus = f'above {sensor.name} limit'
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break
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if sensor.status[0] >= ERROR:
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newstatus = f'error at {sensor.name}: {sensor.status[1]}'
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return
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self.control.status = newstatus
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if self.control.control_active:
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self.log.error('switch control off %r', self.control.status)
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self.control.write_control_active(False)
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self.relais.write_target(False)
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class PI(HasConvergence, PImixin):
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input_module = Attached(Readable, 'the input module')
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relais = Attached(Writable, 'the interlock relais', mandatory=False)
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def read_value(self):
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return self.input.value
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def write_target(self, value):
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super().write_target(value)
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if self.relais:
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self.relais.write_target(1)
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class TdkOutput(HasControlledBy, tdkpower.Output):
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pass
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class BkOutput(HasControlledBy, bkpower.Output):
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pass
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class PRtransmitter(CurrentInput):
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rawrange = (0.004, 0.02)
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extendedrange = (0.0036, 0.021)
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class PKRgauge(LogVoltageInput):
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rawrange = (1.82, 8.6)
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valuerange = (5e-9, 1000)
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extendedrange = (0.5, 9.5)
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