Hello, I need to write using modbus values to the EV wallbox, but the wallbox cannot write using the function in HA write_register, but only supports writer_registers, which I can do, for example, using an external python script. Is it possible to do this using HA without using an external python script like this one?
from pymodbus.client import ModbusTcpClient
import logging
client = ModbusTcpClient('10.55.253.7', port=8899, timeout=5)
if client.connect():
print("Connect OK.")
register_address = 1000
values_to_write = [16]
response = client.write_registers(register_address, values_to_write)
if response.isError():
print("Error write: ", response)
else:
print("Value write OK.")
read_response = client.read_holding_registers(register_address, 1)
if read_response.isError():
print("Error read: ", read_response)
else:
print("New value: ", read_response.registers[0])
else:
print("Error connect.")
client.close()