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from qolab.hardware.basic import BasicInstrument
from qolab.hardware.daq import DAQ
import ue9
class LabJackUE9(DAQ):
"""
This custom modification of the stock LabJack UE9 class provided by LabJack as ue9
"""
def __init__(self, *args, debug = False, autoOpen = True, ethernet=False, ipAddress=None, **kargs):
"""
LabJack UE9 can be contacted via TCP, use
LabJackUE9(ethernet=True, ipAddress="192.168.1.209")
"""
super().__init__(*args, **kargs)
self.config['Device model'] = 'LabJack UE9'
self.AnalogInputsNum=4
self.AnalogOutputsNum=2
self.daq = ue9.UE9(debug=debug, autoOpen=autoOpen, ethernet=ethernet, ipAddress=ipAddress)
# For applying the proper calibration to readings.
c=self.daq.getCalibrationData()
# by evmik
# fixing missing slope for gain '0'
c['AINSlopes']['0']= 0.0000775030
def getAIN(self, chNum):
""" get analog input (AIN) voltage """
BipGain = 8
Resolution = 12
SettlingTime = 0
# BipGain = 8 -> bipolar range (-5V, +5V) gain 1
# UE9 default BipGain = 0 -> signal range (0V, +5V) gain 1
# other BipGain could be:
# 0 = Unipolar Gain 1, 1 = Unipolar Gain 2,
# 2 = Unipolar Gain 4, 3 = Unipolar Gain 8,
# 8 = Bipolar Gain 1
return self.daq.getAIN(chNum, BipGain = BipGain, Resolution = Resolution, SettlingTime = SettlingTime)
def setDAC(self, chNum, volts):
""" set digital to analog (DAC) output voltage """
if chNum == None or volts == None:
print("setOutputCh needs chNum and volts to be set")
return 0
bits = self.daq.voltageToDACBits(volts, dacNumber = chNum)
# out is completely bogus for DAC settings in UE9
out=self.daq.singleIO(IOType=5, Channel=chNum, DAC=bits)
return volts
def close(self):
self.daq.close()
if __name__ == '__main__':
daq = LabJackUE9()
print("testing")
print('------ Header start -------------')
print(str.join('\n', daq.getHeader()))
print('------ Header ends -------------')
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