LG Electronics M2550D, M2450D, M2250D, M1950D, DM2350D Transmission / Receiving protocol

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98EXTERNAL CONTROL DEVICE SETUP

Transmission / Receiving protocol

Transmission

[Command1][Command2][ ][Set ID][ ][Data][Cr]

[Command 1] : First command to control the set.(j, k, m or x)

[Command 2] : Second command to control the set.

[Set ID] : You can adjust the set ID to choose desired monitor ID number in option menu. Adjustment range is 1 to 99. When selecting Set ID ‘0’, every connected set is controlled. Set ID is indicated as decimal (1 to 99) on menu and as Hexa decimal (0x0 to 0x63) on transmission/receiving protocol.

* [DATA] : To transmit command data.

Transmit ‘FF’ data to read status of command.

*[Cr] : Carriage Return ASCII code ‘0 x 0D’

*[ ] : ASCII code ‘space (0 x 20)’

OK Acknowledgement [Command2][ ][Set ID][ ][OK][Data][x]

The set transmits ACK (acknowledgement) based on this format when receiving normal data. At this time, if the data is data read mode, it indicates present status data. If the data is data write mode, it returns the data of the PC computer.

Error Acknowledgement [Command2][ ][Set ID][ ][NG][Data][x]

*The set transmits ACK (acknowledgement) based on this format when receiving abnormal data from non- viable functions or communication errors. Data 00: Illegal Code