Created
December 8, 2018 16:12
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Show state of Venus GX Relays
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#!/usr/bin/env python | |
from pymodbus.constants import Defaults | |
from pymodbus.constants import Endian | |
from pymodbus.client.sync import ModbusTcpClient as ModbusClient | |
from pymodbus.payload import BinaryPayloadDecoder | |
Defaults.Timeout = 25 | |
Defaults.Retries = 5 | |
client = ModbusClient('ipaddress.of.venus', port='502') | |
result = client.read_input_registers(806, 2) | |
decoder = BinaryPayloadDecoder.fromRegisters(result.registers, endian=Endian.Big) | |
relay1=decoder.decode_16bit_uint() | |
relay2=decoder.decode_16bit_uint() | |
print("Relay1: %d, Relay2: %d" % (relay1, relay2)) |
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If you get this error: "unexpected keyword argument 'endian'" try replacing
endian=Endian.Big
with
byteorder=Endian.Big