Canon LV-7255 Руководство по командам - Страница 10
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Печатать страницуDATA10 to DATA16 Reserved
Response (NAK): At the time of a failure
A0H BFH 00H xxH 02H DATA01 DATA02 CKS
(*2)
Checksum : (CKS)
This is lower ranking 8 bits of the sum total of the header and data
portions of one transmit and receive data frame.
======================================================================
5. Data Portion of Response
----------------------------------------------------------------------
* At the time of a success( ACK )
This returns ACK without adding data portion to the command that does
not request data.
This returns ACK with adding data to the data portion for the command
that requests data.
* At the time of a failure( NAK )
This adds a cause of not accepting the command to data portion to
return it.
(Example) Power On
Command:
02H 00H 00H 00H 00H CKS
Response:
A2H 00H 01H 20H 02H DATA01 DATA02 CKS
+------------+------------+--------------------------------------+
| DATA01
| DATA02
|
| Error
| Error types| description| Error contents
+------------+------------+--------------------------------------+
|
00H
|
00H
|
00H
|
01H
|
|
|
01H
|
00H
|
01H
|
01H
|
|
|
02H
|
03H
|
02H
|
0DH
+------------+------------+--------------------------------------+
00H : OFF
01H : ON
|
|
| Unknown command
| The current model does not support
| this function.
| Invalid values specified.
| Specified terminal is unavailable or |
| cannot be selected
| Setting not possible
| Power Off inhibited
|
|
|
|
|
|
|
|
|
|
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