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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).
STATUS SENSE(D7) byte assignment (Table 1)
The third, 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 3-bit indication of the
display mode
000: Full screen
5 001: Quad screen
4 010: Menu display
3 4-bit indication of the
channels and quad
screen displayed
(Full screen mode)
2 0000: Channel 1
1 0001: Channel 2
0 0010: Channel 3
0011: Channel 4
(Quad screen)
0000: Quad screen A (1, 2, 3, 4)
0001: Quad screen B (5, 6, 7, 8)
(Menu display)
0000: Menu 1
(LANGUAGE/LANG./SPRACHE)
0001: Menu 2 (CLOCK SET)
0010: Menu 3 (TITLE SET)
0011: Menu 4 (ALARM SET)
0100: Menu 5 (VIDEO SENSOR SET)
0101: Menu 6 (TIMER SET)
0110: Menu 7 (DISPLAY SET)
0111: Menu 8 (VIDEO LOSS SET)
1111: Menu 9 (ALARM DATA)
Second byte
Bit Bit state information
7 EXT/ALARM
indication
EXTERNAL ALARM is ON
6 VIDEO LOSS
indication
VIDEO LOSS is ON
5 SENSOR indication SENSOR is ON
4 Reserved 0
3 4-bit indication of the
display mode
0000: Normal display mode
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
mode
ALARM STATUS SENSE(D5)
The external, video loss and video sensor alarm states are
indicated by a 6-byte response (see Table 2).
ALARM STATUS SENSE(D5) byte assignment
(Table 2)
First byte Second byte
Bit Bit
7 ALARM ON 8 7 0
6 ALARM ON 7 6 0
5 ALARM ON 6 5 0
4 ALARM ON 5 4 0
3 ALARM ON 4 3 0
2 ALARM ON 3 2 0
1 ALARM ON 2 1 0
0 ALARM ON 1 0 0
Third byte Fourth byte
Bit Bit
7 SENSOR 8 7 0
6 SENSOR 7 6 0
5 SENSOR 6 5 0
4 SENSOR 5 4 0
3 SENSOR 4 3 0
2 SENSOR 3 2 0
1 SENSOR 2 1 0
0 SENSOR 1 0 0
Fifth byte Sixth byte
Bit Bit
7 VIDEO LOSS 8 7 0
6 VIDEO LOSS 7 6 0
5 VIDEO LOSS 6 5 0
4 VIDEO LOSS 5 4 0
3 VIDEO LOSS 4 3 0
2 VIDEO LOSS 3 2 0
1 VIDEO LOSS 2 1 0
0 VIDEO LOSS 1 0 0
D7
d1 d2 d3 d4 d5
RXD
TXD
D5
d1 d2 d3 d4 d5 d6
RXD
TXD
L8QR5/XE (VQC-801P, VQM-801P GB) 1999. 12. 2
English 29