Omron ZS Command Reference Manual page 9

Section 1
Command Formats
Example of BCC calculation
STX NODE No. Subaddress SID Command text ETX BCC
02Hex " " " " "00" "0" "30053001"
0 0
03Hex 37Hex
(30Hex ) (30Hex ) (3030Hex) (30Hex ) (3330303533303031Hex)
Set the result of calculation, which is "37Hex," to BCC.
<Calculation>
BCC = 30Hex + 30Hex + 30Hex + 30Hex + 30Hex + 33Hex +30Hex + 30Hex +35Hex + 33Hex +
30Hex +30Hex +31Hex +03Hex = 37Hex
"+" indicates the exclusive OR (XOR) operation.
1-5
ZS Series
CompoWay/F Communication Command Reference