new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  import time
  
  # min_read_bit
  # minimal code for read 10 bits on IPv4 192.168.0.200 and print result on stdout
  
  from pyModbusTCP.client import ModbusClient
  c = ModbusClient(host="192.168.0.200", auto_open=True)
  
  while True:
      # read 10 bits at address 20480
      bits = c.read_coils(20480, 10)
      print("bit ad #0 to 9: "+str(bits) if bits else "read error")
      # sleep 2s
      time.sleep(2)
  
subject: add an example: minimal code for read_bit