ViewSonic IFP9850 IFP9850 User Guide - Page 109

Remote Control Pass-through Mode, IR Pass Through-Func°on format, Reply: Command Type=p

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Remote Control Pass-through Mode When the PC sets the Display to Remote Control Pass through mode, the Display shall send a 7-byte packet (followed by "CR") in response to remote control unit (RCU) button activation. In this mode the remote control shall have no effect on the Display function. For example: "Volume+" will not change the volume of the Display, but instead only sends the "Volume+" code to the PC over the RS232 port. IR Pass Through-Function format Reply: (Command Type="p") Name Length ID Command Type Byte 1 Byte 2 Count Byte Bytes 1 2~3 order 1 Byte 4 RCU Code1 RCU Code2 (MSB) (LSB) 1 Byte 1 Byte 5 6 CR 1 Byte 7 Example 1: Remote Control Pass-through when "VOL+" key is pressed for Display (#5) Send (Hex Format) Name Length ID Command Type Hex 0x36 0x30 0x70 0x35 RCU Code1 RCU Code2 (MSB) (LSB) 0x31 0x30 CR 0x0D Key 1 2 3 4 5 6 7 8 9 0 RECALL (LAST) INFO (DISPLAY) ASPECT (ZOOM, SIZE) VOLUME UP (+) Code (HEX) 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 Basic *3.1.1 V V V V V V V V V V V Optional *3.1.1 V V V V 109

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109
Remote Control Pass-through Mode
When the PC sets the Display to Remote Control Pass through mode, the Display
shall send a 7-byte packet (followed by “CR”) in response to remote control unit
(RCU) bu²on ac°va°on. In this mode the remote control shall have no effect on
the Display func°on. For example: “Volume+” will not change the volume of the
Display, but instead only sends the “Volume+” code to the PC over the RS232 port.
IR Pass Through-Func°on format
Reply: (Command Type=“p”)
Name Length
ID
Command Type
RCU Code1
(MSB)
RCU Code2
(LSB)
CR
Byte
Count
1 Byte
2
Byte
1 Byte
1 Byte
1 Byte
1 Byte
Bytes
order
1
2~3
4
5
6
7
Example 1: Remote Control Pass-through when “VOL+” key is pressed for Display
(#5)
Send (Hex Format)
Name Length
ID
Command Type
RCU Code1
(MSB)
RCU Code2
(LSB)
CR
Hex
0x36
0x30
0x35
0x70
0x31
0x30
0x0D
Key
Code (HEX)
Basic
*3.1.1
Op°onal
*3.1.1
1
01
V
2
02
V
3
03
V
4
04
V
5
05
V
6
06
V
7
07
V
8
08
V
9
09
V
0
0A
V
-
0B
V
RECALL (LAST)
0C
V
INFO (DISPLAY)
0D
V
0E
ASPECT (ZOOM, SIZE)
0F
V
VOLUME UP (+)
10
V