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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)
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
mode indication
000: Full screen
5 001: 4 divisions split screen
4 010: Menu display
3 Monitor 1 displayed
channel depending
on the display mode
indication
(Full screen mode)
2 0000: Channel 1
1 0001: Channel 2
0 0010: Channel 3
0011: Channel 4
(4 divisions split screen)
0000: 4 divisions split screen (channels
1, 2, 3, 4)
(Menu display)
0000: (LANGUAGE/LANG./IDIO.) menu
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
indication
EXT and ALARM are ON
6 VIDEO LOSS
indication
VIDEO LOSS is ON
5 SENSOR indication SENSOR is ON
4 Reserved 0
3 Monitor 1 display
state mode indication
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
Third byte
Bit Bit state information
7 Reserved –
6 Reserved –
5 Monitor 2 operation MON2 setup
4 Monitor 2 operation 0: Full screen
1: Sequential display
3 Monitor 2 displayed
channel
0000: Channel 1
2 0001: Channel 2
1 0010: Channel 3
0 0011: Channel 4
ALARM STATUS SENSE(D5)
The external and video loss 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
70 70
60 60
50 50
40 40
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
70 70
60 60
50 50
40 40
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
70 70
60 60
50 50
40 40
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
L8FH5/US (MPX-CD4 GB) 1999. 6. 4
36 English