如何在python中使用minimalmodbus实现从站？

pip install pymodbus

from pymodbus.server.sync import StartTcpServer
from pymodbus.device import ModbusDeviceIdentification
from pymodbus.datastore import ModbusSequentialDataBlock
from pymodbus.datastore import ModbusSlaveContext, ModbusServerContext
from pymodbus.transaction import ModbusRtuFramer, ModbusBinaryFramer

import logging

# 配置日志
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)

# 创建数据存储
store = ModbusSlaveContext(
    di=ModbusSequentialDataBlock(0, [17]*100),
    co=ModbusSequentialDataBlock(0, [17]*100),
    hr=ModbusSequentialDataBlock(0, [17]*100),
    ir=ModbusSequentialDataBlock(0, [17]*100))

context = ModbusServerContext(slaves=store, single=True)

# 配置设备标识
identity = ModbusDeviceIdentification()
identity.VendorName = 'pymodbus'
identity.ProductCode = 'PM'
identity.VendorUrl = 'http://github.com/riptideio/pymodbus/'
identity.ProductName = 'pymodbus Server'
identity.ModelName = 'pymodbus Server'
identity.MajorMinorRevision = '1.0'

# 启动TCP服务器
StartTcpServer(context, identity=identity, address=("localhost", 5020))

import minimalmodbus

# 创建仪表对象
instrument = minimalmodbus.Instrument('localhost', 1)  # 端口名称, 从站地址
instrument.serial.baudrate = 9600  # 设置波特率

# 读取保持寄存器
value = instrument.read_register(0, 0)  # 寄存器地址, 小数位数
print(f'Register value: {value}')

from pymodbus.server.sync import StartSerialServer

# 启动串行服务器
StartSerialServer(context, identity=identity, port='/dev/ttyUSB0', baudrate=9600, framer=ModbusRtuFramer)