syntax = "proto2"; package plc_module; message plc_connection_params{ required string ip=1; required int32 port=2; required int32 slave_id=3; } enum PLC_STATUS { ePLCConnected=0; ePLCDisconnected=1; ePLCRefused=2; ePLCUnknown=3; } message Plc_msg { optional PLC_STATUS status=1; repeated int32 plc_values=2; }