Sony VPL-DX125 Protocol Manual page 24

(2) RESPONSE Command
COMMAND fi eld for RESPONSE has 3 sub fi elds shown as follows.
RESPONSE(1)
1) RESPONSE sub fi eld
The response returns the result of the request.
OK (01h) Indicates that the request was executed correctly.
NG (00h) Indicates that the request is illegal or cannot be executed.
(1-1) OK Response
For SET Request, the packet format will be as follows.
OK[01h]
If the response for SET Request is OK, DATA fi eld should be 00h. Therefore, DATA LENGTH fi eld
should be 00h as well.
For Get Request, the packet format will be as follows.
OK[01h]
If the response for GET Request is OK, the DATA fi eld which follows the DATA LENGTH fi eld
should be fi lled with returned data.
(1-2) NG Response
For SET/GET Request
NG[00h]
If the response for SET/GET Request is no good, DATA fi eld which follows the DATA LENGTH
fi eld should be fi led with "ERROR CODE". "ERROR CODE" are defi ned in 7. of the section 4-3-2.
2) ITEM NO sub fi eld
Refer to 6. of the section 4-3-2.
3) DATA LENGTH sub fi eld
This sub fi eld shows the length in byte of the DATA fi eld in the SDCP packet. The maximum data
length is 128 bytes. If there is no data to be sent, its value should be 0h.
20 (E)
ITEM NO(2)
Fig. 4-8 COMMAND Filed for RESPONSE
ITEM NO(2)
ITEM NO(2)
ITEM NO(2)
DATA LENGTH(1)
DATA LENGTH[00h]
DATA LENGTH(2)
DATA LENGTH(2)
VPL-EX225