UCP format and checksum

[ali hadim]

Hello All,  I need litte help for UCP format UCP format has checksum and I couldn't understand can you tell me how it is rule? because I will prepare project and will do encode and decode structure? For example,   00/00087/O/54/012345/0111111//////1/0654321/0100/////010197120501////3///////////////4C "4C" ?   Thanks...