JVC SR-9240EK User Manual

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10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD
2-4 Others (Input data correction/Error cancellation)
These are return codes from the SR-9240E/EK. (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
numeric data such as an Index search point. Also used to cancel error status.
CLEAR (56H)
: Clears the whole command. Cancels the current status and stops the VCR. Also
cancels the error status.
Eg : After setting the recording/playback mode to “L24H”, 32H is mistakenly transmitted . Cancel 32H with
“41H” and input “33H” instead.
(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.
TXD
7EH
30H
32H
RXD
0AH
0AH
0AH
Time
41H
0AH
33H
0AH
40H
0AH
3 Commands reference chart
VCR setting commands
Page
5
Recording/playback mode
48
MODE SHIFT
48
MODE
48
5
Timelapse VCR operation mode
48
    TL STATUS
48
5
Date and time setting
49
    DATE SET
49
    TIME SET
49
5
Timer programming
49
PRG
49
SHIFT –/+
49
SET –/+
49
CANCEL
49
5
On-screen setting
49
ON SCREEN ON/OFF
49
ON SCREEN SELECT
49
5
Others
49
AL/PL RESET
49
COUNT RESET
49
VCR control commands
Page
OPERATE ON/OFF
47
PLAY/REV PLAY
47
STOP
47
FF/REW
47
TIMER ON/OFF
47
OPE ON/OFF
47
EJECT
47
F-FIELD STEP
47
REC CHECK
47
REC/REC PAUSE
47
VISS FWD/REV
47
VISS SEARCH
48
Commands for VCR status verification
Page
Byte returned
from VCR
COUNT CODE
50
4 bytes
DEVICE TYPE
50
4 bytes
VTR INQ
50
1 byte
PL/AL COUNT SENSE
50
6 bytes
HOUR METER SENSE
50
5 bytes
TL STATUS SENSE
50
6 bytes
STATUS SENSE
51
5 bytes
DATA SENSE
50
6 bytes
TIME SENSE
50
6 bytes
Others
Page
JVC TABLE 1 ON/OFF
47
Return codes from VCR
Page
ACK
47
NAK
52
ERROR
52
CASSETTE OUT
47
COMPLETION
47
NOT TARGET
47
ALARM INPUT
51