def test_unscaling(self):
point_analog = \
PointManager().find_point("setpoint").readonly_object
point_scaled = \
PointManager().find_point("setpoint_scaled").readwrite_object
point_scaled.value = 44.0
self.assertEqual(point_analog.value, 87.0)
def test_scaling(self):
point_analog = \
PointManager().find_point("temperature_source").readwrite_object
point_scaled = \
PointManager().find_point("test_scaled_point").readonly_object
point_analog.value = 44.0
print(point_scaled.value)
self.assertEqual(point_scaled.value, 22.5)
def test_cmd_01(modbus_server):
''' Test read COIL status command.
Read 3 coils, starting at address 3. Note that only coils 3 and 5 are
populated. The routine should return a 0 bit for the unpopulated coil.
'''
pd1 = PointManager().get_point_test('point_discrete_1')
pd2 = PointManager().get_point_test('point_discrete_2')
pd1.value = True
pd2.value = True
data_array = []
# MBAP header
# transaction ID = 0x12 0x34
# protocol identifier = 0x00 0x00
# length = 0x00 0x06
# Unit identifier = 01
data_array = [0x12, 0x34, 0x00, 0x00, 0x00, 0x06, 0x01] # MBAP header
# read 3 coils starting at address 03
# command = 0x01
# starting address = 0x00 0x03
# coils to read = 0x00 0x03
data_array += [0x01, 0x00, 0x03, 0x00, 0x03]
data = bytearray(data_array)
del data_array
return_data = modbus_server.process_request(data)
del data
# return command 1, one byte, both discretes on
expected_responce = [0x12, 0x34, 0x00, 0x00, 0x00, 0x04, 0x01] # MBAP
expected_responce += [0x01, 0x01, 0x05]
expected_responce = bytearray(expected_responce)
assert return_data == expected_responce