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fixed, working version of sdm630_mqtt

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This commit is contained in:
Franzi 2024-08-05 14:23:12 +02:00
parent c02c770776
commit 0f304ea949
Signed by: kunsi
GPG key ID: 12E3D2136B818350
1 changed files with 64 additions and 57 deletions
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23
sdm630_mqtt.py
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@ -31,6 +31,8 @@ class SDM630_MQTT:
self.mqtt.on_connect = self._on_mqtt_connect self.mqtt.on_connect = self._on_mqtt_connect
self.mqtt.on_disconnect = self._on_mqtt_disconnect self.mqtt.on_disconnect = self._on_mqtt_disconnect
self.idx = 0
def _publish(self, topic, msg): def _publish(self, topic, msg):
LOG.debug(f"_publish({topic!r}, {msg!r})") LOG.debug(f"_publish({topic!r}, {msg!r})")
self.mqtt.publish(f"{self.mqtt_prefix.rstrip('/')}/{topic}", msg) self.mqtt.publish(f"{self.mqtt_prefix.rstrip('/')}/{topic}", msg)
@ -45,15 +47,16 @@ class SDM630_MQTT:
LOG.debug("_start()") LOG.debug("_start()")
self.mqtt.connect(self.mqtt_host, self.mqtt_port, 10) self.mqtt.connect(self.mqtt_host, self.mqtt_port, 10)
self.mqtt.loop_start() self.mqtt.loop_start()
self.modbus.open()
def stop(self): def stop(self):
LOG.debug("_stop()")
self.modbus.close()
self.mqtt.loop_stop() self.mqtt.loop_stop()
self.mqtt.disconnect() self.mqtt.disconnect()
def request_and_publish(self): def request_and_publish(self):
self.modbus.open() for readable, address in {
for idx, (readable, address) in enumerate(
{
"active-power/L1": 0x000C, "active-power/L1": 0x000C,
"active-power/L2": 0x000E, "active-power/L2": 0x000E,
"active-power/L3": 0x0010, "active-power/L3": 0x0010,
@ -102,10 +105,13 @@ class SDM630_MQTT:
"voltage/L3_L1": 0x00CC, "voltage/L3_L1": 0x00CC,
"voltage/L3_N": 0x0004, "voltage/L3_N": 0x0004,
"voltage/average": 0x002A, "voltage/average": 0x002A,
}.items() }.items():
):
try: try:
read = self.modbus.read_input_registers(address, 2) read = self.modbus.read_input_registers(address, 2)
self.idx += 1
if read is None:
LOG.error(f'reading {readable} was None: {self.modbus.last_error_as_txt}')
continue
longs = word_list_to_long(read) longs = word_list_to_long(read)
if len(longs) == 1: if len(longs) == 1:
self._publish(readable, decode_ieee(longs[0])) self._publish(readable, decode_ieee(longs[0]))
@ -113,10 +119,10 @@ class SDM630_MQTT:
self._publish(readable, sum([decode_ieee(x) for x in longs])) self._publish(readable, sum([decode_ieee(x) for x in longs]))
except Exception: except Exception:
LOG.exception(f'error while reading {readable} from meter') LOG.exception(f'error while reading {readable} from meter')
if idx % 20: if self.idx >= 20:
self.modbus.close() self.modbus.close()
self.modbus.open() self.modbus.open()
self.modbus.close() self.idx = 0
if __name__ == "__main__": if __name__ == "__main__":
@ -127,11 +133,12 @@ if __name__ == "__main__":
except Exception as e: except Exception as e:
print(f"Usage: {argv[0]} config.toml") print(f"Usage: {argv[0]} config.toml")
exit(1) exit(1)
try:
client = SDM630_MQTT(config) client = SDM630_MQTT(config)
client.start() client.start()
try:
while True: while True:
client.request_and_publish() client.request_and_publish()
except Exception as e: except Exception as e:
LOG.exception("oops") LOG.exception("oops")
finally:
client.stop() client.stop()