10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD
After transmitting the VISS SEARCH command (17), transmit the appropriate
(17) VISS SEARCH (B3H) | : To search for a designated INDEX point on the tape. |
The VCR starts INDEX search after returning “ACK”. When the specified point is reached, the VCR returns COMPLETION (01H). If the end or beginning of the tape is reached before the specified point, the VCR returns NOT TARGET (05H).
This command differs from commands (15) and (16) only in that the FF (ABH) or REW (ACH) command is included separately.
2-2 VCR setting commands
Commands available include control of recording/playback mode setting, timelapse VCR operation mode setting, date and time setting, timer programming,
5Recording/playback mode setting commands
Two commands are available. One allows you to rotate through recording/playback modes, the other permits you to directly select the mode.
(1) | MODE SHIFT (7DH) | : Switches from one recording/playback mode to the next each time the command is transmitted. |
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| Use the TL STATUS SENSE (D6H) command to check the current mode. (See section |
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| Transmit 1 byte at a time with “ACK” (0AH) confirmation from the VCR after each transmission. |
(2) | MODE (7EH) | : Sets recording/playback mode directly. |
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| After transmitting this command, transmit the appropriate |
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| and the data input command (40H). Correspondence of ASCII codes with recording/playback |
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Eg: To set to “L18H”.
TXD | 7EH |
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| 30H |
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| 33H |
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| 40H |
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RXD |
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| 0AH |
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| 0AH | ||||
Modes in parentheses are available only in the Play mode.
Time | Mode | 1st byte | 2nd byte | |
(SP | 30H | 30H) | ||
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| 6H | 30H | 31H | |
| L18H | 30H | 33H | |
| L30H | 31H | 37H | |
| 48H | 30H | 34H | |
| 72H | 30H | 35H | |
| 96H | 31H | 36H | |
| 120H | 30H | 37H | |
| 168H | 30H | 38H | |
| 240H | 30H | 39H | |
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5Timelapse VCR operation mode setting commands
(1) TL STATUS SET (86H) | : Set the timelapse VCR operation mode with |
| ACK (0AH) from the VCR. |
TXD | 86H |
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RXD |
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| 0AH |
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| 0AH |
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| 0AH |
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| 0AH |
Time
• The setting details for the first to the third bytes are shown below.
1st byte |
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BIT | When the bit is “1” |
| BIT | When the bit is “1” | ||||
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0 | Repeat recording function ON | 0 | Unused | |||||
1 | Unused | 1 | Alarm recording function ON | |||||
2 | Auto REC mode ON | 2 | Unused | |||||
3 | Auto rewind ON | 3 | Sensor recording function ON | |||||
4 | Unused | 4 | External recording function ON | |||||
5 | Series recording function ON | 5 | Unused | |||||
6 | Tape end buzzer ON during recording | 6 | Index search function ON | |||||
7 | Alarm recording buzzer ON | 7 | Warning buzzer ON | |||||
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3rd byte |
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BIT | When the bit is “1” |
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0 | Unused |
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1 | Summer time ON |
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2 | Unused |
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3 | Unused |
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4 | Unused |
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5 | Always 0. |
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6 | Unused |
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7 | Unused |
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