LG 27HK510S-W.AWP Owner's Manual page 40

Transmission/Reception Protocol
Transmission
(Command1)(Command2)( )(Set ID)( )(Data)(Cr)
(Command 1): j, k, m, x, d
(Command 2): This command is used to control the monitor.
(Set ID): Used to identify the monitor being controlled. (Set ID) can be assigned to each monitor under [General]
in the Settings Menu.
A value from 1 to 10 can be assigned. By selecting '0' for the (Set ID) value in the protocol format, you
can control all connected monitors.
The value is displayed as base 10 on the OSD menu and used as base 16 (0x00 - 0x63) in the
transmission/reception protocol for remote control.
(Data): Transmits a setting value (Data) required for the command described previously. (base 16)
When the Data 'FF' is sent, the setting value corresponding to the specific command is read (Data read
mode).
(Cr): Carriage return, which is '0x0D' in ASCII code.
( ): Space, which is '0x20' in ASCII code.
OK Acknowledgment
(Command2)( )(Set ID)( )(OK)(Data)(x)
When the Data has been successfully received, the monitor sends an ACK response signal in the above format.
The Data showing the current state is received in the Data read mode. The Data from the PC is simply returned
in the Data write mode.
40
Error Acknowledgment
(Command2)( )(Set ID)( )(NG)(Data)(x)
When the set receives an abnormal piece of Data for an unsupported function or there is a communication error,
it returns ACK in the format above.
Data 00: Illegal code
Actual Data Structure (Base 16 Base 10)
• See the table below when inserting a base-16 value in (Data).
• The channel setup command (ma) uses a 2-byte base-16 value (Data) for channel number input.
00: Step 0 32: Step 50 (Set ID 50)
01: Step 1 (Set ID 1) 33: Step 51 (Set ID 51)
... ...
0A: Step 10 (Set ID 10) 63: Step 99 (Set ID 99)
... ...
0F: Step 15 (Set ID 15) C7: Step 199
10: Step 16 (Set ID 16) C8: Step 200
... ...
* Commands may work differently depending on the model and signal.
FE: Step 254
FF: Step 255
...
01 00: Step 256
...
27 0E: Step 9998
27 0F: Step 9999
...