12
Detailed Descriptions of Commands
T/D SENSE (DAH+C3H)
Requests the date/time of recording. When this
command is issued, the VTR returns the date/time
(year/month/day/hour/minute/second in sequence) of
the current playback picture in playback mode or the
current date/time in other operation modes.
Example: In the case of Jan. 31, 1988, 3:10 and 58
seconds p.m.:
ALARM SENSE (DAH+C4H)
Requests the channel of the generated alarm. When
this command is issued, the VTR returns the data
shown below. Each flag is set when an alarm is
generated and reset when the condition to cancel the
alarm is satisfied.
7tib 6tib 5tib 4tib 3tib 2tib 1tib 0tib
1etyb 100000 SAREMACLLA
2etyb4AREMAC3AREMAC2AREMAC1AREMAC
3etyb8AREMAC7AREMAC6AREMAC5AREMAC
4etyb21AREMAC11AREMAC01AREMAC9AREMAC
5etyb61AREMAC51AREMAC41AREMAC31AREMAC
First byte
Bits 1 and 0: Show the status of the alarm input
common to all cameras.
00: No alarm input
01: Alarm generated
Second to fifth bytes
Each two bits show the status of the alarm input of the
corresponding camera.
00: No alarm input
01: Alarm generated
FRAME SENSE (DAH+C5H)
Requests the position on the tape of the current
playback picture. When this command is issued, the
VTR returns the time code data of the current playback
picture and the subdata to indicate the area within the
frame. The value of the subdata depends on the image
quality mode, as shown below.
REPYH REPUS HGIH ELDDIM WOL
eulavatadbuS01ot03ot07ot051ot0
Example: If the time code is 01:23:45:12 and the
subdata value is 3:
ALARM LIST SENSE (DAH+C7H)
Requests information on the alarm list. When this
command is issued with the number of the desired
alarm recording on the list and ENTER (40H), the
VTR returns the information (year/month/day/hour/
minute/second in sequence) of the specified alarm
recording. When 0 is specified for the alarm recording
number, the number of the alarm recordings on the list
is returned by three bytes.
Example: When 85 alarm recordings are on the list:
Example: When alarm recording 37 was recorded on
Jan. 31, 1998, 3:10 and 58 seconds, p.m.:
RxD
TxD
DAH
0AH
C3H
39H 38H 30H 31H 33H
31H
31H
35H 31H 30H 35H 38H
EXP-3 CMD
ACK 98013
1
1
51058
RxD
TxD
DAH
0AH
C5H
30H 31H 32H 33H 34H 35H 31H 32H 30H 33H
EXP-3 CMD
ACK 0123451203
RxD
TxD
DAH
0AH
C7H 30H 40H
0AH 0AH 30H 38H 35H
EXP-3 CMD 0 ENTER
ACK ACK ACK 0 8 5
RxD
TxD
DAH
0AH
C7H 33H 37H
0AH 0AH
40H
0AH
31H31H33H31H30H38H39H
35H 31H 30H 35H 38H
EXP-3 CMD 3 7
ACK ACK ACK
ENTER
ACK
1131089
51058
RxD
TxD
DAH
0AH
C4H
80H xxH xxH xxH xxH
EXP-3 CMD
ACK DATA DATA DATA DATA DATA
