Try VFP SYS(2017) function and Adler32 Checksum

>I am getting a string
>"
>
>
>
>
>
>--------------
>S02
>CBC
>DIFF
>TCBC
>04
>G01
>0A
>DATE 10/07/10
>TIME 14:02:19
>ID1 10H1059168
>CASSPOS A000311
>ID1STATUS
>C/PSTATUS P
>SASTATUS COMPLETE
>INST Instrument 1
>OPR LABADMIN
>DFACT 1.00
>G02
>0A
>WBC 8.6
>RBC 5.35
>HGB 15.7 "
>with its CRC as "B577" , Can anyone help me to find how to arrive this logic for CRC.
>Advance thanks.