Basé sur un exemple d’utilisation de pymodbus, je te propose ce script python :
import logging
from enum import Enum
from math import log10
from time import sleep
from pymodbus import pymodbus_apply_logging_config
# --------------------------------------------------------------------------- #
# import the various client implementations
# --------------------------------------------------------------------------- #
from pymodbus.client import ModbusTcpClient
from pymodbus.exceptions import ModbusException
from pymodbus.pdu import ExceptionResponse
from pymodbus import FramerType
HOST = "172.16.50.151"
PORT = 502
CYCLES = 4
pymodbus_apply_logging_config(logging.ERROR)
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s %(levelname)s %(message)s')
_logger = logging.getLogger(__file__)
def main() -> None:
"""Run client setup."""
_logger.info("### Client starting")
client: ModbusTcpClient = ModbusTcpClient(
host=HOST,
port=PORT,
# Common optional parameters:
framer=FramerType.SOCKET,
timeout=5,
)
client.connect()
_logger.info("### Client connected")
sleep(1)
_logger.info("### Client starting")
for count in range(CYCLES):
_logger.info(f"Running loop {count}")
solar_calls(client)
sleep(10) # scan interval
client.close()
_logger.info("### End of Program")
def solar_calls(client: ModbusTcpClient) -> None:
"""Read registers."""
error = False
for addr, slave, format, factor, comment, unit in ( # data_type according to ModbusClientMixin.DATATYPE.value[0]
(3724, 1, "h", 1, "3724 Power tracker5", "W"),
( 843, 0, "H", 1, "843 Battery SoC (System) (id 0)", "%"),
( 843, 100, "H", 1, "843 Battery SoC (System) (id 100)", "%"),
):
if error:
error = False
client.close()
sleep(0.1)
client.connect()
sleep(1)
data_type = get_data_type(format)
count = data_type.value[1]
var_type = data_type.name
_logger.info(f"*** Reading {comment} ({var_type})")
try:
rr = client.read_holding_registers(address=addr, count=count, slave=slave)
except ModbusException as exc:
_logger.error(f"Modbus exception: {exc!s}")
error = True
continue
if rr.isError():
_logger.error(f"Error")
error = True
continue
if isinstance(rr, ExceptionResponse):
_logger.error(f"Response exception: {rr!s}")
error = True
continue
value = client.convert_from_registers(rr.registers, data_type) * factor
if factor < 1:
value = round(value, int(log10(factor) * -1))
_logger.info(f"*** READ *** {comment} = {value} {unit}")
def get_data_type(format: str) -> Enum:
"""Return the ModbusTcpClient.DATATYPE according to the format"""
for data_type in ModbusTcpClient.DATATYPE:
if data_type.value[0] == format:
return data_type
if __name__ == "__main__":
main()
C’est un script à sauvegarder dans un fichier quelque part sur ta machine Jeedom (via l’éditeur de fichiers) de préférence sous ‹ tests › :
Il faudrait désactiver le plugin et lancer le script avec cette commande dans un terminal :
~www-data/html/plugins/mymodbus/resources/venv/bin/python3 ~www-data/html/tests/[Nom de ton script.py]
Le script peut ensuite être supprimé.
