def read_phases(self):
values = self._from_float(self.read_input_register(1, 30))
# Note: PAC reports phase powers as NaN, if all phases aren't connected.
# However, the total power read with PAC.read_power() is seems valid even then.
self.L1 = Phase(values[0], values[6], values[9], values[12])
self.L2 = Phase(values[1], values[7], values[10], values[13])
self.L3 = Phase(values[2], values[8], values[11], values[14])
def __init__(self):
self.power = Power()
self.L1 = Phase()
self.L2 = Phase()
self.L3 = Phase()
self.tariff_1 = Tariff()
self.tariff_2 = Tariff()
self.frequency = float('nan')
def test_add():
L1 = Phase(230, 1, 2, 1)
L2 = Phase(230, 1, 2, 1)
L3 = Phase(230, 1, 2, 1)
L_total = L1 + L2 + L3
assert isinstance(L_total, Phase)
assert L_total.voltage == 230
assert L_total.current == 3
assert isinstance(L_total.power, Power)
assert L_total.power.apparent == 3 * 2
assert L_total.power.active == 3
def test_sub():
L1 = Phase(230, 1, 2, 1)
L2 = Phase(230, 1, 2, 1)
L3 = Phase(230, 1, 2, 1)
L_total = L1 - L2 - L3
assert isinstance(L_total, Phase)
assert L_total.voltage == 230
assert L_total.current == -1
assert isinstance(L_total.power, Power)
assert L_total.power.apparent == -2
assert L_total.power.active == -1
def test_power_calc():
L1 = Phase(230, 1)
assert isinstance(L1.power, Power)
assert L1.power.apparent == 230
assert isnan(L1.power.active)
assert isnan(L1.power.reactive)
