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"""
This service can be run with the following::
twistd -ny modbus_udp.tac
"""
from twisted.application import service, internet
from twisted.python.log import ILogObserver, FileLogObserver
from twisted.python.logfile import DailyLogFile
from pymodbus.constants import Defaults
from pymodbus.server.async import ModbusUdpProtocol
from pymodbus.transaction import ModbusSocketFramer
from pymodbus.internal.ptwisted import InstallManagementConsole
def BuildService():
"""
A helper method to build the service
"""
context = None
framer = ModbusSocketFramer
server = ModbusUdpProtocol(context, framer)
InstallManagementConsole({ 'server' : server })
application = internet.UDPServer(Defaults.Port, server)
return application
application = service.Application("Modbus UDP Server")
logfile = DailyLogFile("pymodbus.log", "/tmp")
application.setComponent(ILogObserver, FileLogObserver(logfile).emit)
service = BuildService()
service.setServiceParent(application)
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