52
10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD
1st byte
BIT
Status when BIT is “1”.
0 Error
Indicates that an illegal command has been received. No further commands will be accepted.
To restore to normal operation, transmit CLEAR ERROR (41H) to the VCR.
1 Not defined
Always 0.
2 Not defined
Always 0.
3 Cassette out
The tape has not been loaded.
4 REC inhibit
A tape with no safety tab has been loaded. In this case, no recording commands
will be accepted.
5 Not defined
Always 0.
6 Not defined
Always 0.
7 Not defined
Always 1.
2nd byte
BIT
Status when BIT is “1”.
0 Tape End
Tape end sensor is detected.
1 Tape Begin
Tape begin sensor is detected.
2 Not defined
Always 0.
3 Warning
VCR malfunction.
*
4 Not defined
Always 0.
5 Not defined
Always 0.
6 A EE Mode
An externally-input audio signal is being output.
7 V EE Mode
An externally-input video signal is being output.
3rd byte
BIT
Status when BIT is “1”.
0 Not defined
Always 0.
1 Search Mode
Search is in progress. (VISS)
2 Repeat Mode
Repeat recording/playback is in progress.
3 Not defined
Always 0.
4 Repeat
VCR’s REPEAT REC switch is set to ON.
5 Not defined
Always 0.
6 Timer REC ON
VCR’s TIMER button is set to ON.
7 Not defined
Always 0.
4th byte
BIT
Status when BIT is “1”.
0 Not defined
Always 0.
1 REC Mode
VCR is in the Record mode.
2 Eject
A cassette is being ejected.
3 Not defined
Always 1.
4 Stop Mode
VCR is in the Stop mode.
5 REW Mode
VCR is in the Rewind mode.
6 FF Mode
VCR is in the Fast-Forward mode.
7 Play Mode
VCR is in the Play mode.
5th byte
BIT
Status when BIT is “1”.
0 Speed Code 0
VCR’s current tape running mode. See below.
1 Speed Code 1
VCR’s current tape running mode. See below.
2 Speed Code 2
VCR’s current tape running mode. See below.
3 Speed Code 3
VCR’s current tape running mode. See below.
4 Shuttle REV
Reverse search is in progress.
5 Shuttle FWD
Forward search is in progress.
6 Not defined
Always 0.
7 Pause Mode
VCR is in the Pause mode.
Contents of 5th byte BIT 0/1/2/3 “Speed Code”
Speed Code
3
2
1
0
BIT
0
0
0
0
Still
0
0
0
1
Timelapse playback
0
1
0
1
Timelapse recording/1X playback
1
0
0
0
9X search
(9)
STATUS SENSE (D7H)
: The VCR will return current status information in 5 bytes.
*
When an error occurs in the VCR and the Warning mode is engaged, the third bit of the second byte sent back with the STATUS
SENSE (D7H) is set to “1”, showing the warning status.
In this case, release the warning via the RS-232C with the CLEAR (56H). To release it on the VCR, turn the [OPERATE] button
off and on again.
(10) ALARM INPUT (06H)
: SR-L910E/EK return code
This is returned when an alarm signal is input during recording.
53
10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD
2-4 Others (Input data correction/Error cancellation)
These are return codes from the SR-L910E/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
49
MODE SHIFT
49
MODE
49
5
Timelapse VCR operation mode
49
TL STATUS
49
5
Date and time setting
50
DATE SET
50
TIME SET
50
5
Timer programming
50
PRG
50
SHIFT –/+
50
SET –/+
50
CANCEL
50
5
On-screen setting
50
ON SCREEN ON/OFF
50
ON SCREEN SELECT
50
5
Others
50
AL/PL RESET
50
COUNT RESET
50
VCR control commands
Page
OPERATE ON/OFF
48
PLAY/REV PLAY
48
STOP
48
FF/REW
48
TIMER ON/OFF
48
OPE ON/OFF
48
EJECT
48
F-FIELD STEP
48
REC CHECK
48
REC/REC PAUSE
48
VISS FWD/REV
48
VISS SEARCH
49
Commands for VCR status verification
Page
Byte returned
from VCR
COUNT CODE
51
4 bytes
DEVICE TYPE
51
4 bytes
VTR INQ
51
1 byte
PL/AL COUNT SENSE
51
6 bytes
HOUR METER SENSE
51
5 bytes
TL STATUS SENSE
51
6 bytes
STATUS SENSE
52
5 bytes
DATA SENSE
51
6 bytes
TIME SENSE
51
6 bytes
Others
Page
JVC TABLE 1 ON/OFF
48
Return codes from VCR
Page
ACK
48
NAK
53
ERROR
53
CASSETTE OUT
48
COMPLETION
48
NOT TARGET
48
ALARM INPUT
52
