By wichot@hatmail.ir , 16 January, 2022 Forums General discussion Hello, How can i convert OctetString to String with online tools or Gurux.DLMS.CPP? for Example Hex is: 7E A0 1E 21 03 34 78 4C E6 E7 00 C4 01 81 00 09 0C FF FF 03 01 07 FF FF FF FF FF FF 00 8A 56 7E and translate is: <HDLC len="29" > <TargetAddress Value="16" /> <SourceAddress Value="1" /> <!--I frame.--> <FrameType Value="34" /> <PDU> <GetResponse> <GetResponseNormal> <!--Priority: HIGH ServiceClass: UN_CONFIRMED invokeID: 1--> <InvokeIdAndPriority Value="129" /> <Result> <Data> <!--0000-03-01 00:00:00--> <OctetString Value="FFFF030107FFFFFFFFFFFF00" /> </Data> </Result> </GetResponseNormal> </GetResponse> </PDU> </HDLC> in comment show text, but i want convert OctetString to String and String to OctetString Manually, Best Regards