how can i write a class for this codes?

Question

hi
i want connect to a fingerprint sensor "suprema";
i want use one mode that called Enroll by Scan;

for that , i have some command like this:
that used when i want use automatic id mode for fingerprint;

 Start Code: 40 h
Command : 05 h
Parameter : ( Finger ID) 00 h , 00 h , 00 h , 00 h
Size : 00 h , 00 h , 00 h , 00 h
Flag : 79 h
Check Sum : 40h + 05 h + 00 h + 00 h + 00 h + 00 h + 00 h + 00 h + 00 h + 00 h + 79 h = BE h
End Code : 0A h

i must give this information to the sensor;

and sensor return me this information:

 Start Code: 40 h
Command : 05 h
Parameter : ( Finger ID That Save ) xx h , xx h , xx h , xx h
Size : 00 h , 00 h , 00 h , 00 h
Error : 61 h or 62 h or 63 h or 6B h or 6C h or 6D h or 6E h or 72 h or 76 h
that error code has a table to know any code; 
Check Sum : 40h + 05 h + xx h + xx h + xx h + xx h + 00 h + 00 h + 00 h + 00 h + xx h = xx h
End Code : 0A h

and i must write a class that i can use this information on it... i must give information to sensor and i must connect to sensor and sensor give me some information and i must describe that every information has what mean;

now i write this code only :

 byte[] b = new byte[15];
            b[0] = 0x40; //start byte
            b[1] = 0x05; //command
            b[2] = 0x00; //paramid
            b[3] = 0x00;
            b[4] = 0x00;
            b[5] = 0x00;
            b[6] = 0x00; //size
            b[7] = 0x00;
            b[8] = 0x00;
            b[9] = 0x00;
            b[10] = 0x79; //flag
            b[11] = 0xBE; //checksum
            b[12] = 0x0A; //end code

 
i don't know what can i do... please help me
thanks