def set_value(self, channel_name, value):
""" Sets the value of channel"""
try:
channel_name = self.channel_name(channel_name)
except:
raise
if re.match('DAC', channel_name):
try:
if value is None: raise
LabJackPython.AddRequest(self.handle,
LabJackPython.LJ_ioPUT_DAC,
self.channel_numbers[channel_name],
value, 0, 0)
LabJackPython.Go()
exec('self.%s=float("%s")' % (channel_name, value))
except: # TODO catch the error for passing None Specifically
pass
elif re.match('FIO|EIO|CIO', channel_name):
LabJackPython.AddRequest(self.handle,
LabJackPython.LJ_ioPUT_DIGITAL_BIT,
self.channel_numbers[channel_name], value,
0, 0)
LabJackPython.Go()
elif re.match('GND|SGND|VS|SPC', channel_name) or channel_name is None:
pass
else:
raise LabJackInstrumentError('Invalid channel name for set_value.')
self.current_state = self.get_state()
def write(self,
command,
channel,
value=0,
optional_parameter=0,
user_buffer=0):
""" Writes a command to the LabJack device """
LabJackPython.AddRequest(self.handle, command, channel, value,
optional_parameter, user_buffer)
LabJackPython.Go()
def ask(self,
command,
channel,
value=0,
optional_parameter=0,
user_buffer=0):
""" Writes a command to the labjack and returns a value """
LabJackPython.AddRequest(self.handle, command, channel, value,
optional_parameter, user_buffer)
LabJackPython.Go()
answer = LabJackPython.GetResult(self.handle, command, channel)
return answer
