Hitachi CP-AX3503 - Page 126


RS-232C Communication (continued)
3. Response code / Error code
KVKRZVKH[DGHFLPDO
(1) ACK reply : 06h
:KHQWKHSURMHFWRUUHFHLYHVWKH6HW,QFUHPHQW'HFUHPHQWRU([HFXWH
FRPPDQGFRUUHFWO\WKHSURMHFWRUFKDQJHVWKHVHWWLQJGDWDIRUWKHVSHFL¿HG
LWHPE\>7\SH@DQGLWUHWXUQVWKHFRGH
(2) NAK reply : 15h
:KHQWKHSURMHFWRUFDQQRWXQGHUVWDQGWKHUHFHLYHGFRPPDQGWKHSURMHFWRU
UHWXUQVWKHHUURUFRGH
,QVXFKDFDVHFKHFNWKHVHQGLQJFRGHDQGVHQGWKHVDPHFRPPDQGDJDLQ
(3) Error reply : 1Ch + 0000h
:KHQWKHSURMHFWRUFDQQRWH[HFXWHWKHUHFHLYHGFRPPDQGIRUDQ\UHDVRQVWKH
SURMHFWRUUHWXUQVWKHHUURUFRGH
,QVXFKDFDVHFKHFNWKHVHQGLQJFRGHDQGWKHVHWWLQJVWDWXVRIWKHSURMHFWRU
(4) Data reply : 1Dh + xxxxh
:KHQWKHSURMHFWRUUHFHLYHVWKH*(7FRPPDQGFRUUHFWO\WKHSURMHFWRUUHWXUQV
WKHUHVSRQFHFRGHDQGE\WHVRIGDWD
NOTE
)RUFRQQHFWLQJWKHSURMHFWRUWR\RXUGHYLFHVSOHDVHUHDGWKHPDQXDO
IRUHDFKGHYLFHVDQGFRQQHFWWKHPFRUUHFWO\ZLWKVXLWDEOHFDEOHV
2SHUDWLRQFDQQRWEHJXDUDQWHHGZKHQWKHSURMHFWRUUHFHLYHVDQXQGH¿QHG
FRPPDQGRUGDWD
3URYLGHDQLQWHUYDORIDWOHDVWPVEHWZHHQWKHUHVSRQVHFRGHDQGDQ\RWKHU
FRGH
7KHSURMHFWRURXWSXWVWHVWGDWDZKHQWKHSRZHUVXSSO\LVVZLWFKHG21DQG
ZKHQWKHODPSLVOLW,JQRUHWKLVGDWD
&RPPDQGVDUHQRWDFFHSWHGGXULQJZDUPXS

:KHQWKHGDWDOHQJWKLVJUHDWHUWKDQLQGLFDWHGE\WKHGDWDOHQJWKFRGHWKH
SURMHFWRULJQRUHWKHH[FHVVGDWDFRGH&RQYHUVHO\ZKHQWKHGDWDOHQJWKLV
VKRUWHUWKDQLQGLFDWHGE\WKHGDWDOHQJWKFRGHWKHSURMHFWRUUHWXUQVWKHHUURU
FRGHWRWKHFRPSXWHU