code: def start(self, tcpport=102):
          
          if tcpport != 102:
              logger.info("setting server TCP port to %s" % tcpport)
              self.set_param(snap7.snap7types.LocalPort, tcpport)
          logger.info("starting server on 0.0.0.0:%s" % tcpport)
          return self.library.Srv_Start(self.pointer)
docs: start the server.