code: def get_payload(self):
          
          ret = bytes([self.session_id >> 8 & 255, self.session_id & 255])
          ret += bytes([self.status_id])
          ret += bytes([self.index_id])
          ret += bytes([self.node_parameter])
          ret += bytes([self.parameter_value >> 8 & 255, self.parameter_value & 255])
  
          # XXX: Missing implementation of run_status, status_reply and information_code
          ret += bytes(6)
          return ret
docs: Return Payload.