flamedil as of 2023-07-03
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4f0daf3424
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@ -45,8 +45,7 @@ Mod('ts',
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value=Param(unit='K'),
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low='ts_low',
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high='ts_high',
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min_high=1.3,
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min_high=0.6,
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max_low=1.7,
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tolerance=0.1,
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disable_other=False,
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)
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@ -207,8 +207,17 @@ class ResChannel(Channel):
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STATUS_MASK = 0x3f # mask T_OVER and T_UNDER
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def communicate(self, command):
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# TODO: remove this and change to query
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return self.switcher.communicate(command)
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def query(self, command):
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return parse(self.switcher.communicate(command))
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def change(self, command, *args):
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cmd, _, qarg = command.partition(' ')
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args = ','.join([qarg] + [f'{a:g}' for a in args])
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return parse(self.switcher.communicate(f'{command}?{qarg};{command} {args}'))
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def read_status(self):
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if not self.enabled:
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return [self.Status.DISABLED, 'disabled']
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@ -361,6 +370,7 @@ class TemperatureChannel(ResChannel):
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class TemperatureLoop(HasConvergence, TemperatureChannel, Drivable):
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loop = Property('lakshore loop', IntRange(0, 1), default=0) # TODO: implemented specific issues of loop 1
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target = Parameter('setpoint', FloatRange(0, unit='$'))
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control_active = Parameter('we are controlling', BoolType(), default=0)
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minheater = Parameter('minimal heater current', FloatRange(0, 0.01, unit='A'), readonly=False, default=0)
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@ -373,7 +383,7 @@ class TemperatureLoop(HasConvergence, TemperatureChannel, Drivable):
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def control_off(self):
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"""switch control off"""
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self._control_active = False
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self.communicate(f'RANGE 0,0;RANGE?0')
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self.communicate(f'RANGE {self.loop},0;RANGE?{self.loop}')
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self.read_control_active()
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def min_percent(self):
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@ -384,21 +394,21 @@ class TemperatureLoop(HasConvergence, TemperatureChannel, Drivable):
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def set_htrrng(self):
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if self._control_active:
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newhtr = int(self.htrrng) if self._control_active else 0
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htrrng = int(self.communicate('RANGE?0'))
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htrrng = int(self.communicate(f'RANGE?{self.loop}'))
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if htrrng != newhtr:
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if newhtr:
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self.log.info('switched heater on %d', newhtr)
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self.communicate(f'RANGE 0,{newhtr};RANGE?0')
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self.communicate(f'RANGE {self.loop},{newhtr};RANGE?{self.loop}')
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if self.minheater:
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self.log.info('underflow open loop')
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self._underflow = True
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self.communicate(f'OUTMODE 0,2,{self.channel},0,0,1,3;*OPC?')
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self.communicate(f'MOUT {self.min_percent()};*OPC?')
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self.communicate(f'OUTMODE {self.loop},2,{self.channel},0,0,1,3;*OPC?')
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self.communicate(f'MOUT {self.loop}{self.min_percent()};*OPC?')
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elif self._underflow:
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self.log.info('switch to control after underflow')
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self._underflow = False
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self.communicate(f'OUTMODE 0,5,{self.channel},0,0,1,3;*OPC?')
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self.communicate(f'SETP 0,{self.target};SETP?0')
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self.communicate(f'OUTMODE {self.loop},5,{self.channel},0,0,1,3;*OPC?')
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self.communicate(f'SETP {self.loop},{self.target};*OPC?')
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def read_control_active(self):
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self.set_htrrng()
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@ -406,23 +416,31 @@ class TemperatureLoop(HasConvergence, TemperatureChannel, Drivable):
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def read_target(self):
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if self._control_active:
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return float(self.communicate('SETP?0'))
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return float(self.communicate('SETP?{self.loop}'))
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return 0
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def write_htrrng(self, value):
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if self._control_active:
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self.communicate('RANGE 0,{int(value)};*OPC?')
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self.communicate('RANGE {self.loop},{int(value)};*OPC?')
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return value
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def write_target(self, target):
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outmode = (5, self.channel, 0, 0, 1, 3)
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prev = parse(self.communicate('OUTMODE?0'))
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prev = parse(self.communicate('OUTMODE?{self.loop}'))
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if outmode != prev:
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self.communicate('OUTMODE 0, %g,%g,%g,%g,%g,%g;*OPC?' % tuple(outmode))
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self.communicate('MOUT 0,{self.min_percent()};*OPC?')
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self.communicate('OUTMODE {self.loop}, %g,%g,%g,%g,%g,%g;*OPC?' % tuple(outmode))
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self.communicate('MOUT {self.loop},{self.min_percent()};*OPC?')
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for chan in self.switcher.channels.values():
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chan._control_active = False
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self._control_active = True
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self.read_control_active()
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self.convergence_start()
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return float(self.communicate(f'SETP 0,{target};SETP?0'))
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return float(self.communicate(f'SETP {self.loop},{target};SETP?{self.loop}'))
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#def write_ctrlpars(self, ctrlpars):
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# p, i, d = self.change(f'PID {self.loop}', ctrlpars['p'], ctrlpars['i'], ctrlpars['d'])
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# return {'p': p, 'i': i, 'd': d}
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#def read_ctrlpars(self):
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# p, i, d = self.query(f'PID? {self.loop}')
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# return {'p': p, 'i': i, 'd': d}
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@ -130,7 +130,7 @@ def set_enabled(modobj, value):
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modobj.write_enabled(value)
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def get_value(self, obj, default):
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def get_value(obj, default):
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"""get the value of given module. if not valid, return the limit (min_high or max_low)"""
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if not getattr(obj, 'enabled', True):
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return default
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@ -151,28 +151,29 @@ class SwitchDriv(HasConvergence, Drivable):
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def doPoll(self):
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super().doPoll()
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if not self.isBusy():
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low = self.get_value(self.low, self.max_low)
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high = self.get_value(self.high, self.min_high)
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low = get_value(self.low, self.max_low)
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high = get_value(self.high, self.min_high)
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low_valid = low < self.max_low
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high_valid = high > self.min_high
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if low_valid > high_valid:
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self.write_selected(self.selected.low)
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elif high_valid > low_valid:
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self.write_selected(self.selected.high)
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if high_valid or low_valid:
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set_enabled(self.low, low_valid)
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set_enabled(self.high, high_valid)
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else: # both invalid: measure both!
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set_enabled(self.low, True)
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set_enabled(self.high, True)
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if high_valid and high > self.max_low:
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if not low_valid:
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set_enabled(self.low, False)
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return
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if low_valid and low < self.min_high:
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if not high_valid:
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set_enabled(self.high, False)
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return
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set_enabled(self.low, True)
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set_enabled(self.high, True)
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def read_value(self):
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return self.low.value if self.selected == self.selected.low else self.high.value
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def read_status(self):
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status = self.low.status if self.selected == self.selected.low else self.high.status
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# merge with convergence status
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return merge_status(status, super().read_status())
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if status[0] >= ERROR:
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return status
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return super().read_status() # convergence status
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def read_target(self):
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if self.selected == self.selected.low:
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