ViewSonic CDE4200-L User Manual page 42

Other Information
POWER Lock 1. Lock "POWER" key of front and RCU.
2. The SET_POWER on/off should be workable via RS232, but does not mean
the POWER lock will be released under this case.
3. Can not be un-locked by reset in OSD setting
4. Will auto AC power-on in power-lock
5. Under power-lock, the set will not enter power saving when no PC signal and
neither not turn off when no other video signals after 15min.
Remote control Lock the keys on RCU, but keep the buttons of front panel workable.
disable
3.2 Get-Function Listing
The PC can interrogate the display 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 = 00.
Get-Function description:
Length:
Total Byte of Message excluding "CR"
ID: Identification for each of display
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
Byte Count 1 Byte
Bytes order 1
Reply: (Command Type= "r" or "-")
If the Command is valid, Command Type = "r"
Length
Name
Byte Count 1 Byte
Bytes order 1
ID Command Command
Type
2 Byte 1 Byte
2~3 4
ID Command Command
Type
2 Byte 1 Byte
2~3 4
Value1 Value2
1 Byte 1 Byte 1 Byte
5 6
Value1 Value2
1 Byte 1 Byte
5 6
33
Value3 CR
1 Byte 1 Byte
7 8 9
Value3 CR
1 Byte 1 Byte 1 Byte
7 8 9