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 HSR-1/1P is A0H.

Example: With HSR-1/1P:

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 four-byte status data, as shown below.

 

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

 

byte 2

PAUSE

0

SEARCH

PLAY

REW

F.FWD

 

STOP

EJECT

byte 3

0

TIMER

REPEAT

CONTINU-

 

ALARM REC

 

REC

REC

REC

OUS REC

 

 

byte 4

FWD/REV

0

0

0

0

ALARM

 

T/D

RESERVED

SEARCH

 

SEARCH

 

 

 

 

 

 

 

 

 

 

 

EXP-3

CMD

RxD

 

DAH

 

C7H

 

 

 

 

 

 

 

 

 

TxD

 

 

 

0AH

 

 

 

xxH

 

xxH

 

xxH

 

xxH

 

 

 

 

 

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 Pre-alarm mode is on.

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 five-byte status data shown below.

 

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

 

 

 

 

 

 

 

 

 

 

 

EXP-3

CMD

RxD

 

DAH

 

 

 

C2H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TxD

 

 

 

0AH

 

 

 

80H

 

xxH

 

xxH

 

xxH

 

xxH

 

 

 

 

 

 

ACK

 

DATA DATA DATA DATA DATA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

11