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5
RS-232C Interface (Continued)
The command between this unit and the computer consists of
“
Header
”
,
“
Unit ID
”
,
“
Command
”
,
“
Data
”
and
“
End
”
.
●
Header (1 byte), Unit ID (2 bytes), Command (2 bytes), Data (n bytes), End (1 byte)
■
Header
This binary code indicates the start of communication.
Binary code
Type Description
21 Operating command PC
→
This unit
3F
Response command PC
→
This unit
40 Reference command This unit
→
PC
06 ACK
This unit
→
PC
(When the command is accepted without error, it
returns to PC)
■
Unit ID
This code species the unit. The binary code is xed at
“
8901
”
.
■
Command and data
Operating command and data (Binary code)
Command Type Description
0000
Connection check
Check whether communication is available between this
unit and the PC during standby.
5057
Power supply
During standby
31: Turn on the power.
During power on
30: Turn off the power. (Standby mode)
4950
Input
During power on
32: COMP.
33: PC
36: HDMI 1
37: HDMI 2
5243
Remote Control
Sends the same code as the supplied remote control.
●
“
Remote control code
”
(Reference page: 89)
Command Format
90
70