Python ANC350lib类代码示例

	def capMeasure(self, axis):
		'''
		determines the capacitance of the piezo addressed by axis
		'''
		self.status = ANC350lib.Int32(0)
		ANC350lib.positionerCapMeasure(self.handle,axis,ctypes.byref(self.status))
		return self.status.value

	def getStatus(self, axis):
		'''
		determines the status of the selected axis. result: bit0 (moving), bit1 (stop detected), bit2 (sensor error), bit3 (sensor disconnected)
		'''
		self.status = ANC350lib.Int32(0)
		ANC350lib.positionerGetStatus(self.handle,axis,ctypes.byref(self.status))
		return self.status.value

	def getStepwidth(self, axis):
		'''
		determines the step width. In case of standstill of the motor this is the calculated step width	resulting from amplitude setpoint, frequency, and motor parameters. In case of movement this is measured step width
		'''
		self.stepwdth = ANC350lib.Int32(0)
		ANC350lib.positionerGetStepwidth(self.handle,axis,ctypes.byref(self.stepwdth))
		return self.stepwdth.value

	def getRotCount(self, axis):
		'''
		determines actual number of rotations in case of rotary actuator
		'''
		self.rotcount = ANC350lib.Int32(0)
		ANC350lib.positionerGetRotCount(self.handle,axis,ctypes.byref(self.rotcount))
		return self.rotcount.value

	def getSpeed(self, axis):
		'''
		determines the actual speed. In case of standstill of this actor this is the calculated speed resulting	from amplitude setpoint, frequency, and motor parameters. In case of movement this is measured speed.
		'''
		self.spd = ANC350lib.Int32(0)
		ANC350lib.positionerGetSpeed(self.handle,axis,ctypes.byref(self.spd))
		return self.spd.value

	def getIntEnable(self, axis):
		'''
		determines status of internal signal generation of addressed axis. only applicable for scanner/dither axes
		'''
		self.status = ctypes.c_bool(None)
		ANC350lib.positionerGetIntEnable(self.handle,axis,ctypes.byref(self.status))
		return self.status.value

	def getReferenceRotCount(self, axis):
		'''
		determines actual position of addressed axis
		'''
		self.rotcount = ANC350lib.Int32(0)
		ANC350lib.positionerGetReferenceRotCount(self.handle,axis,ctypes.byref(self.rotcount))
		return self.rotcount.value

	def getPosition(self, axis):
		'''
		determines actual position of addressed axis
		'''
		self.pos = ANC350lib.Int32(0)
		ANC350lib.positionerGetPosition(self.handle,axis,ctypes.byref(self.pos))
		return self.pos.value

	def getFrequency(self, axis):
		'''
		determines the frequency in Hz
		'''
		self.freq = ANC350lib.Int32(0)
		ANC350lib.positionerGetFrequency(self.handle,axis,ctypes.byref(self.freq))
		return self.freq.value

	def getDcLevel(self, axis):
		'''
		determines the status actual DC level in mV
		'''
		self.dclev = ANC350lib.Int32(0)
		ANC350lib.positionerGetDcLevel(self.handle,axis,ctypes.byref(self.dclev))
		return self.dclev.value

	def getBandwidthLimitEnable(self, axis):
		'''
		determines status of bandwidth limiter of addressed axis. only applicable for scanner axes
		'''
		self.status = ctypes.c_bool(None)
		ANC350lib.positionerGetBandwidthLimitEnable(self.handle,axis,ctypes.byref(self.status))
		return self.status.value

	def getAmplitude(self, axis):
		'''
		determines the actual amplitude. In case of standstill of the actor this is the amplitude setpoint. In case of movement the amplitude set by amplitude control is determined.
		'''
		self.status = ANC350lib.Int32(0)
		ANC350lib.positionerGetAmplitude(self.handle,axis,ctypes.byref(self.status))
		return self.status.value

	def getAcInEnable(self, axis):
		'''
		determines status of ac input of addressed axis. only applicable for dither axes
		'''
		self.status = ctypes.c_bool(None)
		ANC350lib.positionerGetAcInEnable(self.handle,axis,ctypes.byref(self.status))
		return self.status.value

	def getReference(self, axis):
		'''
		determines distance of reference mark to origin
		'''
		self.pos = ANC350lib.Int32(0)
		self.validity = ctypes.c_bool(None)
		ANC350lib.positionerGetReference(self.handle,axis,ctypes.byref(self.pos),ctypes.byref(self.validity))
		return self.pos.value, self.validity.value

	def connect(self):
		'''
		Establishes connection to first device found
		'''
		self.handle = ANC350lib.Int32(0)
		try:
			ANC350lib.positionerConnect(0,ctypes.byref(self.handle)) #0 means "first device"
			print 'connected to first positioner'
		except Exception as e:
			print 'unable to connect!'
			raise e