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set unit together with datatype

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Change-Id: I412471880e71792160ee56a79375dc62dd4aaafc
This commit is contained in:
zolliker
2021-10-06 09:07:09 +02:00
parent 21dfcbd290
commit 09056ea87e
2 changed files with 29 additions and 30 deletions
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55
secop_psi/dpm.py
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@ -48,20 +48,20 @@ def float2hex(value, digits):
class DPM3(HasIodev, Drivable):
OFFSET = 0x8f
SCALE = 0x8c
MAGNITUDE = {'1': 1, '2': 10, '3': 100, '4': 1e3, '5': 1e4, '6': 1e5,
'9':-1, 'A':-10, 'B':-100, 'C':-1e3, 'D':-1e4, 'E':-1e5}
iodevClass = DPM3IO
motor = Attached()
digits = Parameter('number of digits for value', IntRange(0, 5), initwrite=True, readonly=False)
value = Parameter(unit='N')
target = Parameter(unit='N')
value = Parameter(datatype=FloatRange(unit='N'))
target = Parameter(datatype=FloatRange(unit='N'))
step = Parameter('maximum motor step', FloatRange(unit='deg'), default=5, readonly=False)
offset = Parameter('', FloatRange(-1e5, 1e5), readonly=False, poll=True)
#Note: we have tro treat the units properly.
""" We got an output of 150 for 10N. The maximal force we want to deal with is 100N,
thus a maximl output of 1500. 10=150/f
@ -69,7 +69,7 @@ class DPM3(HasIodev, Drivable):
scale_factor = Parameter('', FloatRange(-1e5, 1e5, unit='input_units/N'), readonly=False, poll=True)
_target = None
fast_pollfactor = 0.01
def query(self, adr, value=None):
if value is not None:
if adr == self.SCALE:
@ -109,11 +109,11 @@ class DPM3(HasIodev, Drivable):
self.write_scale_factor(self.scale_factor)
self.write_offset(self.offset)
return Done
def read_digits(self):
back_value = self._iodev.communicate('*1G135')
return int(back_value,16) - 1
def read_value(self):
value = float(self._iodev.communicate('*1B1'))
mot = self._motor
@ -135,10 +135,9 @@ class DPM3(HasIodev, Drivable):
self.stop()
self.status = self.Status.IDLE, 'target reached'
return value
def write_target(self, target):
self._target = target
self._started = True
if target - self.value > 0:
self._direction = 1
else:
@ -158,7 +157,7 @@ class DPM3(HasIodev, Drivable):
def read_offset(self):
reply = self.query(self.OFFSET)
return reply
def write_offset(self, value):
return self.query(self.OFFSET, value)
@ -169,20 +168,20 @@ class DPM3(HasIodev, Drivable):
def write_scale_factor(self, value):
reply = self.query(self.SCALE, value * 10 ** self.digits)
return float(reply) / 10 ** self.digits