def test_readTelegram(self):
vc = c.viCommand('Anlagentyp')
vt = v.viTelegram(vc, 'read')
self.assertEqual('4105000100f80200', vt.hex())
vc = c.viCommand('Warmwassertemperatur')
vt = v.viTelegram(vc, 'read')
self.assertEqual('41050001010d0216', vt.hex())
def execWriteCmd(self, cmdname, value) -> viData:
# sends a read command and gets the response.
vc = viCommand(cmdname)
if not vc.write:
raise viControlException(f'command {cmdname} cannot be written')
# create viData object
vd = viData.create(vc.unit, value)
# create write Telegram
vt = viTelegram(vc, 'Write', 'Request', vd)
# send Telegram
self.vs.send(vt)
# Check if sending was successfull
ack = self.vs.read(1)
logging.debug(f'Received {ack.hex()}')
if ack != ctrlcode['acknowledge']:
raise viControlException(
f'Expected acknowledge byte, received {ack}')
# Receive response and evaluate data
vr = self.vs.read(vt.__responselen__) # receive response
logging.debug(
f'Requested {vt.__responselen__} bytes. Received telegram {vr.hex()}'
)
self.vs.send(ctrlcode['acknowledge']) # send acknowledge
vt = viTelegram.frombytes(vr) # create response Telegram
if vt.tType == viTelegram.tTypes['error']:
raise viControlException('Write command returned an error')
return viData.create(vt.vicmd.unit,
vt.payload) # return viData object from payload
def execWriteCmd(self, cmdName, value):
vc = viCommand(cmdName)
return None
def execReadCmd(self, cmdName):
vc = viCommand(cmdName)
return viData.create('IUNON', random.randint(0, 50))
def test_vicmdWarmwassertemperatur(self):
# create command from string
vc = viCommand('Warmwassertemperatur')
self.assertEqual(vc.hex(), '010d02')
def test_vicmdAussentemperatur(self):
# create command from string
vc = viCommand('Aussentemperatur')
self.assertEqual(vc.hex(), '010102')
def test_vicmdWWeinmal(self):
# create command from string
vc = viCommand('WWeinmal')
self.assertEqual(vc.hex(), 'b02001')
def test_vicmdAnlagentyp(self):
# create command from string
vc = viCommand('Anlagentyp')
self.assertEqual(vc.hex(), '00f802')
def test_vicmdnomatch(self):
# Command not existing
with self.assertRaises(viCommandException):
vc = viCommand.frombytes(b'\xF1\x00')
with self.assertRaises(viCommandException):
vc = viCommand('foo')
