NEC LCD Monitor, Manual

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21.2 Setting Copy Write
This command is used in order to write the setting of Setting Copy.
1) The controller requests the monitor to write Setting Copy.
Header Message Check code Delimiter
SOH-'0'-Monitor ID-
'0'-'A'-'1'-'0'
STX-'C'-'A'-'0'-'9'-0'-'1'-
T4-T3-T2-T1-ETX
BCC CR
Header
SOH (01h): Start of Header
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID of which you want to change a setting.
Ex.) If Monitor ID is '1', specify 'A'.
'0' (30h): Message sender is the controller.
'A' (41h): Message type is "Command".
'1'-'0'(31h,30h): Message length
Message
STX (02h): Start of Message
'C'-'A'-'0'-'9' (43h,41h,30h,39h): Setting Copy command
'0'-'1' (30h,31h): Target Write
T1
–
T4 : 00h (30h, 30h)
–
FFh (46h, 46h)
T1 : Setting Copy Target 4 (Bit12-Bit15)
T2 : Setting Copy Target 3 (Bit8-Bit11)
T3 : Setting Copy Target 2 (Bit4-Bit7)
T4 : Setting Copy Target 1 (Bit0-Bit3)
Bit0: ALL INPUT
Bit1: PICTURE
Bit2: ADJUST
Bit3: AUDIO
Bit4: SCHEDULE
Bit5: PIP
Bit6: OSD
Bit7: MULTI DISP
Bit8: PROTECT
Bit9: EXT-CTRL
Bit10: ADVANCED
Bit11: ADVANCED2
Bit12: HTTP
Bit13: Reserve
Bit14: Reserve
Bit15: Reserve
Ex.) Setting the following value for T4
Bit0: ALL INPUT is OFF (0).
Bit1: PICTURE is OFF (0).
Bit2: ADJUST is ON (1).
Bit3: AUDIO is ON (1).
Step 1: Put above bit in following order.
Bit3-Bit2-Bit1-Bit0
Value: 1100
Step 2: Write the value of Step 1 by a hexadecimal number.
Value: 0Ch
Step 3: Encode the value of Step 2 to ASCII characters.
Value: '0' and 'C' (30h and 43h)
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5
“
Check code
”
for a BCC calculation.
Delimiter
CR (0Dh): End of packet