JVC SR-L910UA - 24 Hour Time Lapse Vcr Instructions Manual page 53

10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD
2-4 Others (Input data correction/Error cancellation)
These are return codes from the SR-L910UA. (Error-related codes only)
(1) ERROR (02H) : This is returned when commands of more than 1 byte are transmitted to the VCR and an illegal command is
received in the 2nd byte (or later) of the transmitted command.
In this status, no command can be accepted and only STATUS SENSE will be returned.
To restore normal operation, transmit CLEAR ERROR (41H) or CLEAR (56H) to the VCR.
CLEAR ERROR (41H) : Used to cancel previously-transmitted 1-byte numeric data when inputting
CLEAR (56H)
Eg : After setting the recording/playback mode to "L24H", 32H is mistakenly transmitted . Cancel 32H with
(2) NAK (0BH) : VCR will return this code when non-defined or non-functional command is received in the 1st byte of the
transmitted command. In this case, it is not necessary to input CLEAR. Check whether the transmitted command
is acceptable to the VCR or not.
3 Commands reference chart
VCR control commands
OPERATE ON/OFF
PLAY/REV PLAY
STOP
FF/REW
TIMER ON/OFF
OPE ON/OFF
EJECT
F-FIELD STEP
REC CHECK
REC/REC PAUSE
VISS FWD/REV
VISS SEARCH
Commands for VCR status verification
COUNT CODE
DEVICE TYPE
VTR INQ
PL/AL COUNT SENSE
HOUR METER SENSE
TL STATUS SENSE
STATUS SENSE
DATA SENSE
TIME SENSE
numeric data such as an Index search point. Also used to cancel error status.
: Clears the whole command. Cancels the current status and stops the VCR. Also
cancels the error status.
"41H" and input "33H" instead.
TXD
7EH 30H
0AH 0AH
RXD
Page
48
48
48
48
48
48
48
48
48
48
48
49
Page Byte returned
from VCR
51 4 bytes
51 4 bytes
51 1 byte
51 6 bytes
51 5 bytes
51 6 bytes
52 5 bytes
51 6 bytes
51 6 bytes
32H 41H 33H
0AH 0AH
VCR setting commands
5 Recording/playback mode
MODE SHIFT
MODE
5 Timelapse VCR operation mode
TL STATUS
5 Date and time setting
DATE SET
TIME SET
5 Timer programming
PRG
SHIFT –/+
SET –/+
CANCEL
5 On-screen setting
ON SCREEN ON/OFF
ON SCREEN SELECT
5 Others
AL/PL RESET
COUNT RESET
Return codes from VCR
ACK
NAK
ERROR
CASSETTE OUT
COMPLETION
NOT TARGET
ALARM INPUT
Others
JVC TABLE 1 ON/OFF
40H
Time
0AH 0AH
Page
49
49
49
49
49
50
50
50
50
50
50
50
50
50
50
50
50
50
50
Page
48
53
53
48
48
48
52
Page
48
53