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RS232C CONTROL
INFORMATION GATHERING COMMANDS
STATUS SENSE (D7)
When this command is sent from the computer, this unit will
send a 5-byte response (see Table 1).
RXD
D7
TXD
d1
STATUS SENSE (D7) byte assignment (Table 1)
Fourth and fifth bytes are reserved.
First byte
Bit
Bit state information
7
LIVE/VCR indication
0: LIVE picture mode
1: VCR playback mode
6
Monitor 1 display
000: Full screen
mode indication
5
001: 4 divisions split screen
4
010: Menu display
3
Monitor 1 displayed
(Full screen mode)
channel depending
2
0000: Channel 1
on the display mode
1
0001: Channel 2
indication
0
0010: Channel 3
0011: Channel 4
(4 divisions split screen)
0000: 4 divisions split screen (channels 1,
(Menu display)
0000: (LANGUAGE/LANG./SPRACHE)
0001: (CLOCK SET) menu
0010: (TITLE SET) menu
0011: (ALARM SET) menu
0100: (SENSOR SET) menu
0101: (TIMER SET) menu
0110: (DISPLAY SET) menu
0111: (VCR SET) menu
1000: (ALARM DATA) menu
Second byte
Bit
Bit state information
7
EXT/ALARM
EXT and ALARM are ON
indication
6
VIDEO LOSS
VIDEO LOSS is ON
indication
5
SENSOR indication
SENSOR is ON
4
Reserved
0
3
Monitor 1 display
0000: Normal display mode
state mode indication
2
0001: Sequential display mode
1
0010: Zoomed in mode
0
0011: Still image mode
0100: Frozen zoomed in image
0101: Zoomed in still image
0110: Zoom range setting mode
0111: Zoomed in still image range setting
d2
d3
d4
d5
2, 3, 4)
menu
mode
Third byte
Bit
7
Reserved
6
Reserved
5
Monitor 2 operation
4
Monitor 2 operation
3
Monitor 2 displayed
channel
2
1
0
ALARM STATUS SENSE (D5)
The external and video loss alarm states are indicated by a
6-byte response (see Table 2).
RXD
D5
TXD
ALARM STATUS SENSE (D5) byte assignment
(Table 2)
First byte
Bit
7
0
6
0
5
0
4
0
3
ALARM ON 4
2
ALARM ON 3
1
ALARM ON 2
0
ALARM ON 1
Third byte
Bit
7
0
6
0
5
0
4
0
3
SENSOR 4
2
SENSOR 3
1
SENSOR 2
0
SENSOR 1
Fifth byte
Bit
7
0
6
0
5
0
4
0
3
VIDEO LOSS 4
2
VIDEO LOSS 3
1
VIDEO LOSS 2
0
VIDEO LOSS 1
36
Bit state information
–
–
MON2 setup
0: Full screen
1: Sequential display
0000: Channel 1
0001: Channel 2
0010: Channel 3
0011: Channel 4
d1
d2
d3
d4
d5
Second byte
Bit
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
Fourth byte
Bit
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
Sixth byte
Bit
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
d6
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