137 lines
4.7 KiB
Python
137 lines
4.7 KiB
Python
import logging
|
|
from sys import argv, exit
|
|
from time import sleep
|
|
from tomllib import load
|
|
|
|
import paho.mqtt.client as mqtt
|
|
from pyModbusTCP.client import ModbusClient
|
|
from pyModbusTCP.utils import decode_ieee, word_list_to_long
|
|
|
|
logging.basicConfig(level=logging.DEBUG)
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class SDM630_MQTT:
|
|
def __init__(
|
|
self,
|
|
config,
|
|
):
|
|
self.modbus = ModbusClient(
|
|
host=config["modbus"]["host"],
|
|
port=config["modbus"]["port"],
|
|
unit_id=config["modbus"]["unit_id"],
|
|
)
|
|
self.modbus.timeout = 10
|
|
|
|
self.mqtt = mqtt.Client()
|
|
self.mqtt_host = config["mqtt"]["host"]
|
|
self.mqtt_port = config["mqtt"]["port"]
|
|
self.mqtt_prefix = config["mqtt"]["prefix"]
|
|
|
|
self.mqtt.on_connect = self._on_mqtt_connect
|
|
self.mqtt.on_disconnect = self._on_mqtt_disconnect
|
|
|
|
def _publish(self, topic, msg):
|
|
LOG.debug(f"_publish({topic!r}, {msg!r})")
|
|
self.mqtt.publish(f"{self.mqtt_prefix.rstrip('/')}/{topic}", msg)
|
|
|
|
def _on_mqtt_connect(self, client, userdata, flags, rc):
|
|
LOG.info(f"Connected to mqtt server {self.mqtt_host}:{self.mqtt_port}")
|
|
|
|
def _on_mqtt_disconnect(self, client, userdata, rc):
|
|
LOG.info(f"Disconnected from mqtt server {self.mqtt_host}:{self.mqtt_port}")
|
|
|
|
def start(self):
|
|
LOG.debug("_start()")
|
|
self.mqtt.connect(self.mqtt_host, self.mqtt_port, 10)
|
|
self.mqtt.loop_start()
|
|
|
|
def stop(self):
|
|
self.mqtt.loop_stop()
|
|
self.mqtt.disconnect()
|
|
|
|
def request_and_publish(self):
|
|
self.modbus.open()
|
|
for idx, (readable, address) in enumerate(
|
|
{
|
|
"active-power/L1": 0x000C,
|
|
"active-power/L2": 0x000E,
|
|
"active-power/L3": 0x0010,
|
|
"active-power/total": 0x0034,
|
|
"apparent-power/L1": 0x0012,
|
|
"apparent-power/L2": 0x0014,
|
|
"apparent-power/L3": 0x0016,
|
|
"apparent-power/total": 0x0038,
|
|
"current-demand/L1": 0x0102,
|
|
"current-demand/L2": 0x0104,
|
|
"current-demand/L3": 0x0106,
|
|
"current-demand/N": 0x0068,
|
|
"current-demand/max_L1": 0x0108,
|
|
"current-demand/max_L2": 0x010A,
|
|
"current-demand/max_L3": 0x010C,
|
|
"current-demand/max_N": 0x006A,
|
|
"current/L1": 0x0006,
|
|
"current/L2": 0x0008,
|
|
"current/L3": 0x000A,
|
|
"current/average": 0x002E,
|
|
"current/neutral": 0x00E0,
|
|
"current/total": 0x0030,
|
|
"export_kVArh": 0x004C,
|
|
"export_kWh": 0x004A,
|
|
"frequency": 0x0046,
|
|
"import_kVArh": 0x004E,
|
|
"import_kWh": 0x0048,
|
|
"phase-angle/L1": 0x0024,
|
|
"phase-angle/L2": 0x0026,
|
|
"phase-angle/L3": 0x0028,
|
|
"phase-angle/total": 0x003E,
|
|
"power-demand/max": 0x0056,
|
|
"power-demand/total": 0x0054,
|
|
"power-factor/L1": 0x001E,
|
|
"power-factor/L2": 0x0020,
|
|
"power-factor/L3": 0x0022,
|
|
"power-factor/total": 0x003E,
|
|
"reactive-power/L1": 0x0018,
|
|
"reactive-power/L2": 0x001A,
|
|
"reactive-power/L3": 0x001E,
|
|
"reactive-power/total": 0x003C,
|
|
"voltage/L1_L2": 0x00C8,
|
|
"voltage/L1_N": 0x0000,
|
|
"voltage/L2_L3": 0x00CA,
|
|
"voltage/L2_N": 0x0002,
|
|
"voltage/L3_L1": 0x00CC,
|
|
"voltage/L3_N": 0x0004,
|
|
"voltage/average": 0x002A,
|
|
}.items()
|
|
):
|
|
try:
|
|
read = self.modbus.read_input_registers(address, 2)
|
|
longs = word_list_to_long(read)
|
|
if len(longs) == 1:
|
|
self._publish(readable, decode_ieee(longs[0]))
|
|
else:
|
|
self._publish(readable, sum([decode_ieee(x) for x in longs]))
|
|
except Exception:
|
|
LOG.exception(f'error while reading {readable} from meter')
|
|
if idx % 20:
|
|
self.modbus.close()
|
|
self.modbus.open()
|
|
self.modbus.close()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
try:
|
|
with open(argv[1], "rb") as f:
|
|
config = load(f)
|
|
TITLE = config["printout"]["title"]
|
|
except Exception as e:
|
|
print(f"Usage: {argv[0]} config.toml")
|
|
exit(1)
|
|
client = SDM630_MQTT(config)
|
|
client.start()
|
|
try:
|
|
while True:
|
|
client.request_and_publish()
|
|
except Exception as e:
|
|
LOG.exception("oops")
|
|
client.stop()
|