def _apply_point_update(point_def, point_index, value):
"""
Set an input point in the outstation database. This may send its PointValue to the Master.
:param point_def: A PointDefinition.
:param point_index: A numeric index for the point.
:param value: A value to send (unwrapped, simple data type).
"""
data_type = point_def.data_type
if data_type == DATA_TYPE_ANALOG_INPUT:
wrapped_val = opendnp3.Analog(float(value))
if isinstance(value,
bool) or not isinstance(value, numbers.Number):
# Invalid data type
raise DNP3Exception('Received {} value for {}.'.format(
type(value), point_def))
elif data_type == DATA_TYPE_BINARY_INPUT:
wrapped_val = opendnp3.Binary(value)
if not isinstance(value, bool):
# Invalid data type
raise DNP3Exception('Received {} value for {}.'.format(
type(value), point_def))
else:
# The agent supports only DNP3's Analog and Binary point types at this time.
raise DNP3Exception('Unsupported point type {}'.format(data_type))
if wrapped_val is not None:
DNP3Outstation.apply_update(wrapped_val, point_index)
_log.debug('Sent DNP3 point {}, value={}'.format(
point_def, wrapped_val.value))
def _apply_point_update(point_def, point_index, value):
"""
Set an input point in the outstation database. This may send its PointValue to the Master.
:param point_def: A PointDefinition.
:param point_index: A numeric index for the point.
:param value: A value to send (unwrapped, simple data type).
"""
data_type = point_def.data_type
if data_type == DATA_TYPE_ANALOG_INPUT:
wrapped_val = opendnp3.Analog(float(value))
if isinstance(value, bool) or not isinstance(value, numbers.Number):
# Invalid data type
raise DNP3Exception('Received {} value for {}.'.format(type(value), point_def))
elif data_type == DATA_TYPE_BINARY_INPUT:
wrapped_val = opendnp3.Binary(value)
if not isinstance(value, bool):
# Invalid data type
raise DNP3Exception('Received {} value for {}.'.format(type(value), point_def))
else:
# The agent supports only DNP3's Analog and Binary point types at this time.
raise DNP3Exception('Unsupported point type {}'.format(data_type))
if wrapped_val is not None:
DNP3Outstation.apply_update(wrapped_val, point_index)
_log.debug('Sent DNP3 point {}, value={}'.format(point_def, wrapped_val.value))
def _set_point(self, point_name, value):
"""
(Internal) Set the value of a given input point (no debug trace).
@param point_name: The VOLTTRON point name of a DNP3 PointDefinition.
@param value: The value to set. The value's data type must match the one in the DNP3 PointDefinition.
"""
point_properties = self.volttron_points.get(point_name, {})
data_type = point_properties.get('data_type', None)
index = point_properties.get('index', None)
try:
if data_type == DATA_TYPE_ANALOG_INPUT:
wrapped_value = opendnp3.Analog(value)
elif data_type == DATA_TYPE_BINARY_INPUT:
wrapped_value = opendnp3.Binary(value)
else:
raise Exception('Unexpected data type for DNP3 point named {0}'.format(point_name))
DNP3Outstation.apply_update(wrapped_value, index)
except Exception as e:
raise DNP3Exception(e.message)
def _set_point(self, point_name, value):
"""
(Internal) Set the value of a given input point (no debug trace).
@param point_name: The VOLTTRON point name of a DNP3 PointDefinition.
@param value: The value to set. The value's data type must match the one in the DNP3 PointDefinition.
"""
point_properties = self.volttron_points.get(point_name, {})
group = point_properties.get('group', None)
index = point_properties.get('index', None)
point_type = PointDefinition.point_type_for_group(group)
try:
if point_type == POINT_TYPE_ANALOG_INPUT:
wrapped_value = opendnp3.Analog(value)
elif point_type == POINT_TYPE_BINARY_INPUT:
wrapped_value = opendnp3.Binary(value)
else:
raise Exception('Unexpected data type for DNP3 point named {0}'.format(point_name))
DNP3Outstation.apply_update(wrapped_value, index)
except Exception as e:
raise DNP3Exception(e.message)