Orion OLS-8410NL, User Manual

Page: 34 / 45

-64- -65-
08
. PROTOCOL
Introduction
-
This document contains the communication PROTOCOL between LCD and its control devices for better use.
- It focuses on the brief functional explanation and communication protocol without detailed technical matters.
1 . Communication Setting
-
Transmission type: Asynchronous Serial Communication
- Baud Rate: Select one rate among 9600 bps, 14400 bps, 19200 bps, 38400 bps, 57600 bps, or 115200 bps
-
Parity bit: None
- Stop bits: 1
2 . Protocol Format
2
.
1
. Send To LCD
STX CMD Ex CMD Length Data ETX
1
byte
1
byte
1
byte
1
byte Variable
1
byte
Group ID Multi ID Other Data
1
byte
1
byte N byte
- It is a commanding format to LCD. The command will be effective only for the set of the designated ID.
-
STX (
0
x
02
) : Code for initiation. It means the beginning of Protocol. (Fixed value)
- CMD: Code for actual command. (Variable)
-
Ex CMD: Code for expanded code. (Fixed value
0
x
01
)
- Length: The length of "Data" area. (Variable: 0 ~ 255 )
-
Data: The areas for "ID" and the other Data (Variable)
- Group / Multi ID: Code for distinguishing LCD sets. Group ID : 0 x 01 / Multi ID : 0 x 01 (Fixed).
-
ETX(
0
x
03
) : Code for the end of Protocol (Fixed value)
2
.
2
. Receive From LCD
STX CMD Ex CMD Length Data Check Sum ETX
1
byte
1
byte
1
byte
1
byte Variable
1
byte
1
byte
Group ID Multi ID Other Data
1
byte
1
byte N byte
-
Response format to a certain command from the designated set among LCD sets. The difference from "Send to LCD" is "Check sum".
- STX( 0 x 02 ) : Code for initiation. It means the beginning of Protocol. (Fixed value)
-
CMD: Code for actual command. (Variable)
- Ex CMD: Code for expanded code. (Fixed value
0
x
01
)
-
Length: The length of "Data" area. (Variable:
0
~
255
)
- Data: The areas for "ID" and the other Data (Variable)
-
ID: Code for distinguishing LCD sets. Group ID :
0
x
01
/ Multi ID :
0
x
01
(Fixed).
- Check sum: Execute "Not" operation after adding all the values in "STX~Data" area.
-
ETX(
0
x
03
): The end of the code. (Fixed value)
■
Communication Sequence
- Wait for
50
msec for response after sending the command. If there is no response, it is recommended to resend the command.
-
Do not send the other command or change input resolution during command transmission.
Command Transmission


Response Transmission
3
. Basic Command
3 . 1 . Status
-
This is the command for checking the current status of LCD.
- It is available only during Power On status.
-
CMD :
0
x
87
- Send To LCD
STX CMD Ex CMD Length
Data
ETX
Group ID Multi ID Mode
Value
0
x
02 0
x
87 0
x
01 0
x
03
Variable Variable Variable
0
x
03
*Group ID/Multi ID Range (Program) : Group ID : 0 x 01 / Multi ID : 0 x 01 Fixed
*Mode : Read(Get) –
0
x
00
(
0
)
- Receive From LCD
STX CMD Ex CMD Length
Data
Check Sum ETX
Group ID Multi ID Mode Status
Value
0
x
02 0
x
87 0
x
01 0
x
1
C Variable Variable Variable
………
Variable
0
x
03
*Group ID/Multi ID Range (Program) : Group ID : 0 x 01 / Multi ID : 0 x 01 Fixed
*Mode : Read(Get) –
0
x
00
(
0
)
*Check Sum: Execute "Not" operation after adding all the values in "STX~Data" area.
- Status (
25
Byte)
No. Data Length Explanation
1 Display Model 10 Byte
Ex) OLS- 8410 NL
0
x
4
F
0
x
4
C
0
x
53 0
x
2
D
0
x
38 0
x
34 0
x
31 0
x
30 0
x
4
E
0
x
4
C
2
Firmware Version
10
Byte
Ex) 0 . 80 . 01 A.O
0
x
00 0
x
2
E
0
x
38 0
x
30 0
x
2
E
0
x
30 0
x
31 0
x
41 0
x
2
E
0
x
4
F
3
IP Address
4
Byte
Ex) 192 . 168 . 00 . 04
0
xC
0 0
xA
8 0
x
00 0
x
04
4
Input Source
1
Byte
0
x
11
: HDMI
1
A ,
0
x
12
: HDMI
1
B,
0
x
13
: HDMI
1
C,
0
x
14
: HDMI
1
D,
0
x
15
: HDMI
2
A,
0
x
16
: HDMI
2
B,
0
x
17
: HDMI
2
C,
0
x
18
: HDMI
2
D,
0 x 31 : UHD 1 , 0 x 32 : UHD 2
3
.
2
. Power On/Off
- Power On/Off
-
Power On command is available only during Power Off (Stand-by) status.
- Power Off command is available only during Power On (Operative) status.
-
CMD :
0
x
10