def getIo(self, channel, value):
"""Get the value or state of an analog input channel.
This method calls the GetIo function of the module and returns
the value or of the analog input channel.
Args:
channel: IO channel number. Must be in the range 0 ... 3
value: Value object. Must be either ValueVOS4, ValueVOS2,
ValueCUS4 or ValueANU2
Returns:
IO_RETURN_OK in case of success, otherwise detailed IoReturn
error code.
Raises:
TypeError: Passed argument types are wrong
ValueError: Channel value is out of range
"""
if not isinstance(channel, int):
raise TypeError('Expected channel as int, got %s' % type(channel))
if not isinstance(value, (ValueANU2, ValueVOS2, ValueVOS4, ValueCUS4)):
raise TypeError('Expected value as ValueANU2 or ValueVOS2, \
ValueVOS4 or ValueCUS4 got %s' % type(value))
if (channel >= self.nrOfChannels):
raise ValueError('Channel out of range')
cmd = Cmd(self.com)
return cmd.getIo(channel, value)
def getIo(self, channel, value):
"""Get the value or state of one digital output channel.
This method calls the GetIo function of the module and returns
the value or state of the digital output channel.
Args:
channel: IO channel number. Must be in the range 0 ... 3
value: Digital value object of type ValueDI1.
Returns:
IO_RETURN_OK in case of success, otherwise detailed IoReturn
error code.
Raises:
TypeError: Passed argument types are wrong
ValueError: Channel value is out of range
"""
if not isinstance(channel, int):
raise TypeError('Expected channel as int, got %s' %
(type(channel)))
if not isinstance(value, ValueDI1):
raise TypeError('Expected value as ValueDI1, got %s' %
(type(value)))
if (channel >= self.nrOfChannels):
raise ValueError('Channel out of range')
cmd = Cmd(self.com)
return cmd.getIo(channel, value)
