Lg HECTO User Manual download pdf (Page 90)

Serial Communication Function

Communication Parameter Setup

Baud Rate: 9600 bps(UART)

Data Length: 8 bit

Parity: none

Stop bit: 1 bit

Flow Control: none

Communication code: ASCII code

Data Structure

10 16

10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16 10 16

0 00

1 01 11 0B 21 15 31 1F 41 29 51 33 61 3D 71 47 81 51 91 5B

2 02 12 0C 22 16 32 20 42 2A 52 34 62 3E 72 48 82 52 92 5C

3 03 13 0D 23 17 33 21 43 2B 53 35 63 3F 73 49 83 53 93 5D

4 04 14 0E 24 18 34 22 44 2C 54 36 64 40 74 4A 84 54 94 5E

5 05 15 0F 25 19 35 23 45 2D 55 37 65 41 75 4B 85 55 95 5F

6 06 16 10 26 1A 36 24 46 2E 56 38 66 42 76 4C 86 56 96 60

7 07 17 11 27 1B 37 25 47 2F 57 39 67 43 77 4D 87 57 97 61

8 08 18 12 28 1C 38 26 48 30 58 3A 68 44 78 4E 88 58 98 62

9 09 19 13 29 1D 39 27 49 31 59 3B 69 45 79 4F 89 59 99 63

10 0A 20 14 30 1E 40 28 50 32 60 3C 70 46 80 50 90 5A 100 64

Communication

Protocol

1. Transmission

[Command1] [Command2] [ ] [Set ID] [ ]

[Data] [Cr]

[Command1]: The first command to control the

Laser TV (k. j, x, m, n, ASCII code, 1

Character)

[Command2]: The second command to control the

Laser TV (ASCII code, 1 character)

[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 (hexadecimal).

Transmit ‘FF’ data to read status of

command.

[Cr]: Carriage Return

It corresponds to ASCII code ‘0x0D’.

[ ] : ASCII code ‘space (0x20)

2. 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.

3. Error Acknowledgement

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

If a set receives an abnormal piece of data

such as a non-supported function or there is a

communication error, it returns ACK in the above

format.

Data [00]: illegal code

(This command is not supported.)

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Lg HECTO User Manual Page 90

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