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我想创建一个 Modbus 服务器（IP 地址：152.168.96.11 - 与系统相同）和在不同系统中运行的 Modbus 客户端（IP 地址：152.168.96.32）。我的客户端应用程序运行成功，我正在使用 pymodbus 服务器应用程序创建 Modbus 服务器应用程序。32 位数据交换（为测试目的读取或写入）。我想读取和写入特定地址的值到 Modbus 客户端。

如何配置 python pymodbus 服务器，服务器能够读取和写入数据到客户端 IP 地址

这是 pymodbus 服务器应用程序 -

# --------------------------------------------------------------------------- # 
# import the various server implementations
# --------------------------------------------------------------------------- # 
from pymodbus.server.sync import StartTcpServer

from pymodbus.device import ModbusDeviceIdentification
from pymodbus.datastore import ModbusSequentialDataBlock
from pymodbus.datastore import ModbusSlaveContext, ModbusServerContext

# --------------------------------------------------------------------------- # 
# configure the service logging
# --------------------------------------------------------------------------- # 
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)


def run_server():

    # ----------------------------------------------------------------------- # 
    # initialize your data store
    # ----------------------------------------------------------------------- #
    block = ModbusSequentialDataBlock(0, [888]*32)
    store = ModbusSlaveContext(hr=block)

    slaves  = {
               0x01: store,
              }
    context = ModbusServerContext(slaves=slaves, single=True)

    # ----------------------------------------------------------------------- # 
    # initialize the server information
    # ----------------------------------------------------------------------- # 
    # If you don't set this or any fields, they are defaulted to empty strings.
    # ----------------------------------------------------------------------- # 
    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'

    # ----------------------------------------------------------------------- #
    # run the server you want
    # ----------------------------------------------------------------------- # 
    # Tcp:
    StartTcpServer(context, identity=identity, address=('0.0.0.0', 255))


if __name__ == "__main__":
    run_server()
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1 回答 1

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参考 Github 中提出的问题，并从贡献者那里跟进。

于 2018-03-28T08:47:01.240 回答