from pymodbus.client import ModbusTcpClient
import time
client = ModbusTcpClient('localhost', port=5020)
client.connect()
client.write_registers(address=11, values=[2243])
client.write_registers(address=13, values=[0])

client.write_registers(address=21, values=[0])
time.sleep(2)
# client.write_registers(address=21, values=[1])

client.write_registers(address=20, values=[0])
# client.write_registers(address=5, values=[16])
# 贴标完成
# client.write_registers(address=24, values=[1])s
client.write_registers(address=13, values=[1])


result = client.read_holding_registers(address=1, count=1)
print(result.registers[0],"123===")
client.close()