Hitachi CP-A200 Projector User Manual


  Open as PDF
of 121
 
8
RS-232C Communication (continued)
Requesting projector status (Get command)
6HQGWKHIROORZLQJUHTXHVWFRGHIURPWKH3&WRWKHSURMHFWRU
Header + Command data (‘02H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)
7KHSURMHFWRUUHWXUQVWKHUHVSRQVHFRGH‘1DH’ + data (2 bytes)WRWKH3&
Changing the projector settings (Set command)
6HQGWKHIROORZLQJVHWWLQJFRGHIURPWKH3&WRWKHSURMHFWRU
Header + Command data (‘01H’ + ‘00H’ + type (2 bytes) + setting code (2 bytes))
7KHSURMHFWRUFKDQJHVWKHVHWWLQJEDVHGRQWKHDERYHVHWWLQJFRGH
7KHSURMHFWRUUHWXUQVWKHUHVSRQVHFRGH ‘06H’ WRWKH3&
Using the projector default settings (Reset Command)
7KH3&VHQGVWKHIROORZLQJGHIDXOWVHWWLQJFRGHWRWKHSURMHFWRU
Header + Command data (‘06H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)
7KHSURMHFWRUFKDQJHVWKHVSHFL¿HGVHWWLQJWRWKHGHIDXOWYDOXH
7KHSURMHFWRUUHWXUQVWKHUHVSRQVHFRGH ‘06H’WRWKH3&
Increasing the projector setting value (Increment command)
7KH3&VHQGVWKHIROORZLQJLQFUHPHQWFRGHWRWKHSURMHFWRU
Header + Command data (‘04H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)
7KHSURMHFWRULQFUHDVHVWKHVHWWLQJYDOXHRQWKHDERYHVHWWLQJFRGH
7KHSURMHFWRUUHWXUQVWKHUHVSRQVHFRGH‘06H’WRWKH3&
Decreasing the projector setting value (Decrement command)
7KH3&VHQGVWKHIROORZLQJGHFUHPHQWFRGHWRWKHSURMHFWRU
Header + Command data (‘05H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)
7KHSURMHFWRUGHFUHDVHVWKHVHWWLQJYDOXHRQWKHDERYHVHWWLQJFRGH
7KHSURMHFWRUUHWXUQVWKHUHVSRQVHFRGH‘06H’WRWKH3&
When the projector cannot understand the received command
:KHQWKHSURMHFWRUFDQQRWXQGHUVWDQGWKHUHFHLYHGFRPPDQGWKHHUURUFRGH‘15H’
LVVHQWEDFNWRWKH3&
6RPHWLPHVWKHSURMHFWRUFDQQRWSURSHUO\UHFHLYHWKHFRPPDQG,QVXFKDFDVH
WKHFRPPDQGLVQRWH[HFXWHGDQGWKHHUURUFRGH‘15H’ LVVHQWEDFNWRWKH3&,I
WKLVHUURUFRGHLVUHWXUQHGVHQGWKHVDPHFRPPDQGDJDLQ
When the projector cannot execute the received command.
:KHQWKHSURMHFWRUFDQQRWH[HFXWHWKHUHFHLYHGFRPPDQGWKHHUURUFRGH‘1CH’ +
‘xxxxH’LVVHQWEDFNWRWKH3&
: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DQHUURUFRGHZLOOEHUHWXUQHGWRWKH3&
NOTE2SHUDWLRQFDQQRWEHJXDUDQWHHGZKHQWKHSURMHFWRUUHFHLYHVDQXQGH¿QHG
command or data.
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
 previous next