Markus Zolliker
0fec736886
- remove poll arguments - change from HasIodev to HasIO Change-Id: I2668f1068c17a50d9aff43b1bb3e4fb03c8d840e
79 lines
3.0 KiB
Python
79 lines
3.0 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# *****************************************************************************
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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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"""Temp"""
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from secop.datatypes import FloatRange, IntRange, StringType
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from secop.modules import Drivable, Parameter, Readable
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from secop.io import HasIO
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Status = Drivable.Status
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class TempLoop(HasIO, Drivable):
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"""temperature channel on Lakeshore 336"""
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value = Parameter(datatype=FloatRange(unit='K'), default=0)
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status = Parameter(poll=False)
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target = Parameter(datatype=FloatRange(1.0, 402.0, unit='K'), default=1.3)
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tolerance = Parameter('the tolerance', FloatRange(-400, 400), default=1, readonly=False)
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pollinterval = Parameter(visibility=3)
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channel = Parameter('the Lakeshore channel', datatype=StringType(), export=False)
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loop = Parameter('the Lakeshore loop number', datatype=IntRange(1, 3), export=False)
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def earlyInit(self):
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super(TempLoop, self).earlyInit()
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self.status = [Status.IDLE, 'idle']
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def read_value(self):
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result = self.sendRecv('KRDG?%s' % self.channel)
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result = float(result)
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if self.status == Status.BUSY and abs(result - self.target) < self.tolerance:
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self.status = [Status.IDLE, 'reached target']
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return result
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def read_target(self):
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result = self.sendRecv('SETP?%d' % self.loop)
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return float(result)
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def write_target(self, value):
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result = float(self.sendRecv('SETP %d,%g;SETP? %d' % (self.loop, value, self.loop)))
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self.status = [Status.BUSY, 'changed target']
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float('x')
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return result
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def stop(self):
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self.target = self.value
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self.status = [Status.IDLE, 'stopped']
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class TempChannel(HasIodev, Readable):
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"""temperature channel on Lakeshore 336"""
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value = Parameter(datatype=FloatRange(unit='K'), default=0, poll=True)
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status = Parameter(poll=False, constant=[Status.IDLE, 'idle'])
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pollinterval = Parameter(visibility=3)
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channel = Parameter('the Lakeshore channel', datatype=StringType(), export=False)
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def read_value(self):
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result = self.sendRecv('KRDG?%s' % self.channel)
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result = float(result)
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return result
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