#!/usr/bin/python
from pymodbus.client.sync import ModbusSerialClient as ModbusClient
import time
import sys

start = int(sys.argv[1])
count = int(sys.argv[2])

client = ModbusClient(method='rtu', port='/dev/ttyUSB0', baudrate=9600, stopbits=1, parity='N', bytesize=8, timeout=1)

connect = client.connect()

while True:
        rr = client.read_holding_registers(start,count)
        file = open("logs/energy.txt", "w")
        file.write(str(rr.registers))
        file.close()
        time.sleep(5)

client.close()