![](/images/backgrounds/204938/204938-2211x1.png)
Status Request Commands
DEVICE TYPE REQUEST (8FH)
Requests the information on the type of equipment controlled. The device type is a unique code assigned to each model to distinguish it from other models. The device type of the
Example: With
CMD
RxD 8FH
TxD A0H
DEVICE TYPE
STATUS SENSE (DAH+C0H)
Requests the return of VTR status data. When this command is issued, the VTR returns
| bit 7 | bit 6 | bit 5 | bit 4 | bit 3 | bit 2 |
| bit 1 | bit 0 |
byte 1 | 1 | 0 | 0 | REC | CASSETTE | ALARM |
| 0 | ERROR |
INHIBIT | OUT |
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byte 2 | PAUSE | 0 | SEARCH | PLAY | REW | F.FWD |
| STOP | EJECT |
byte 3 | 0 | TIMER | REPEAT | CONTINU- |
| ALARM REC |
| REC | |
REC | REC | OUS REC |
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byte 4 | FWD/REV | 0 | 0 | 0 | 0 | ALARM |
| T/D | RESERVED |
SEARCH |
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RxD |
| DAH |
| C7H |
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TxD |
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| 0AH |
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| xxH |
| xxH |
| xxH |
| xxH |
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| ACK |
| DATA DATA DATA DATA |
First byte
bit 4: Becomes 1 when a record inhibited tape is inserted.
bit 3: Becomes 1 when a cassette is not loaded into the VTR.
bit 2: Becomes 1 when an alarm occurs is generated.
bit 0: Becomes 1 when an error occurs.
Second byte
bit 7: Becomes 1 when the VTR is in Pause mode.
bit 5: Becomes 1 when the VTR is in Search mode.
bit 4: Becomes 1 when the VTR is in Play mode.
bit 3: Becomes 1 when the VTR is in Rewind mode.
bit 2: Becomes 1 when the VTR is in Fast forward mode.
bit 1: Becomes 1 when the VTR is in Stop mode.
bit 0: Becomes 1 while the VTR is ejecting the cassette.
Third byte bit 6:
0:No timer setting
1:Timer On
bit 5: Becomes 1 when Repeat recording is on.
bit 4: Becomes 1 when Continuous recording is on. bits 3, 2 and 1:
000: No alarm recording setting
001:Alarm recording in Normal mode is on.
010:Alarm recording in Interleave mode is on.
011:Alarm recording in Event mode is on.
100:Alarm recording in
101:Alarm recording in Frame mode is on.
bit 0: Becomes 1 when the VTR is recording.
Fourth byte
bit 7: Shows the search direction when the VTR is in Search mode.
0:FWD
1:REV
bit 2: Becomes 1 while the VTR is executing the ALARM SEARCH (DAH+97H) command.
bit 1: Becomes 1 while the VTR is executing the T/D SEARCH (DAH+96H) command.
bit 0: Reserved
CAMERA SENSE (DAH+C2H)
Requests the status of camera connections and video signal inputs. When this command is issued, the VTR returns the
| bit 7 | bit 6 | bit 5 | bit 4 | bit 3 | bit 2 | bit 1 | bit 0 |
byte 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
byte 2 | CAMERA4 | CAMERA3 | CAMERA2 | CAMERA1 | ||||
byte 3 | CAMERA8 | CAMERA7 | CAMERA6 | CAMERA5 | ||||
byte 4 | CAMERA12 | CAMERA11 | CAMERA10 | CAMERA9 | ||||
byte 5 | CAMERA16 | CAMERA15 | CAMERA14 | CAMERA13 | ||||
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RxD |
| DAH |
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| C2H |
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TxD |
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| 0AH |
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| 80H |
| xxH |
| xxH |
| xxH |
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| ACK |
| DATA DATA DATA DATA DATA | |||||||||||
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Second to fifth bytes
Each two bits show the status of the corresponding camera.
00:NO CONNECT
10:No signal input
11:Signal being input
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