11
Command Control via the Network (continued)
Decreasing the projector setting value (Decrement command)
7KH3&VHQGVWKHIROORZLQJGHFUHPHQWFRGHWRWKHSURMHFWRU
Command data (‘05H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)
7KHSURMHFWRUGHFUHDVHVWKHVHWWLQJYDOXHRQWKHDERYHVHWWLQJFRGH
7KHSURMHFWRUUHWXUQVWKHUHVSRQVHFRGH
‘06H’
WRWKH3&
When the projector cannot understand the received command
:KHQWKHSURMHFWRUFDQQRWXQGHUVWDQGWKHUHFHLYHGFRPPDQGWKHHUURUFRGH
‘15H’
LVVHQWEDFNWRWKH3&
6RPHWLPHVWKHSURMHFWRUFDQQRWSURSHUO\UHFHLYHWKHFRPPDQG,QVXFKDFDVH
WKHFRPPDQGLVQRWH[HFXWHGDQGWKHHUURUFRGH
‘15H’
LVVHQWEDFNWRWKH3&,I
WKLVHUURUFRGHLVUHWXUQHGVHQGWKHVDPHFRPPDQGDJDLQ
When the projector cannot execute the received command.
:KHQWKHSURMHFWRUFDQQRWH[HFXWHWKHUHFHLYHGFRPPDQGWKHHUURUFRGH
‘1CH’ +
‘xxxxH’
LVVHQWEDFNWRWKH3&
:KHQ WKH GDWD OHQJWK LV JUHDWHU WKDQ LQGLFDWHG E\ WKH GDWD OHQJWK FRGH WKH
SURMHFWRULJQRUHWKHH[FHVVGDWDFRGH&RQYHUVHO\ZKHQWKHGDWDOHQJWKLVVKRUWHU
WKDQLQGLFDWHGE\WKHGDWDOHQJWKFRGHDQHUURUFRGHZLOOEHUHWXUQHGWRWKH3&
When authentication error occurred.
:KHQDXWKHQWLFDWLRQHUURURFFXUUHGWKHHUURUFRGHWKH
‘1FH’ + ‘0400H’
is sent
EDFNWRWKH3&
[TCP #9715]
1. Protocol
&RQVLVWRIKHDGHUE\WHGDWDOHQJWKE\WHFRPPDQGGDWDE\WHV
FKHFNVXPE\WHVFRQQHFWLRQ,'E\WH
2. Header
)L[HG
3. Data Length
1HWZRUNFRQWUROFRPPDQGVE\WHOHQJWK')L[HG
4. Command data
1HWZRUNFRQWUROFRPPDQGVWKDWVWDUWZLWK%(()E\WHV
5. Check Sum
7KLVLVWKHYDOXHWRPDNH]HURRQWKHDGGLWLRQRIWKHORZHUELWVIURPWKHKHDGHU
WRWKHFKHFNVXP
6. Connection ID
5DQGRPYDOXHIURPWR7KLVYDOXHLVDWWDFKHGWRWKHUHSO\GDWD
NOTE
2SHUDWLRQ FDQQRW EH JXDUDQWHHG ZKHQ WKH SURMHFWRU UHFHLYHV DQ
XQGH¿QHGFRPPDQGRUGDWD
3URYLGHDQLQWHUYDORIDWOHDVWPVEHWZHHQWKHUHVSRQVHFRGHDQGDQ\RWKHUFRGH
&RPPDQGVDUHQRWDFFHSWHGGXULQJZDUPXS
