Kronotech BLUEBOX GEN2 M30 UHF, Руководство пользователя, Страница: 32 / 51

B5U027115E GEN2 M30 UHF Serial-J1939 Manual – Rev. 1.15 Page 32 of 51
<par>
RS232/RS485 communication interface parity. ASCII
character:
 ‘0’ -> None;
 ‘1’ -> Even;
 ‘2’ -> Odd.
<bcc>
Block check character or checksum calculated as ‘xor’ of
the previous characters starting from STX applying the
following rule: if <bcc> = STX or <bcc> = CR, then
<bcc> := <bcc>+1 (increment of 1).
If the BLUEBOX is able to execute the command, it answers with:
STX ‘2’ ‘F’ ‘0’ ‘0’ <bcc> CR
The ‘BLUEBOX M30 Config’ program is provided to explicate these operations.