User Guide

3. Set Time example

Time: 16:27:59

Send: 0x 38 30 31 73 57 48 31 36 0D (“H16＂)

Send: 0x 38 30 31 73 57 4D 32 37 0D (“M27＂)

Send: 0x 38 30 31 73 57 53 35 39 0D (“S59＂)

9.3.2 Get-Function Listing

The PC can interrogate the LFD for specific information. The Get-Function packet

format consists of 9 bytes which is similar to the Set-Function packet structure. Note

that the “Value＂ byte is always = 000

Get-Function description:

Length: Total Byte of Message excluding “CR＂.

TV/DS ID Identification for each of TV/DS (01~98; default is 01).

Command Type Identify command type,

“g＂ (0x67h) : Get Command

“r＂ (0x72h) : Valid command Reply

“-“ (0x2Dh) : Invalid command Reply

Command: Function command code: One byte ASCII code.

Value[1~3]: Three bytes ASCII that defines the value.

CR 0x0D

Get-Function format

Send: (Command Type=＂g＂)

Name Length ID Command

Type

Command Value1 Value2 Value3 CR

Byte

Count

1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte

Bytes

order

1 2~3 4 5 6 7 8 9

Reply: (Command Type=＂r＂ or “-＂)

If the Command is valid, Command Type =＂r＂