Kramer VP-774, User Manual

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66 VP-774 - The VP-774 RS-232 Communication Protocol
12.2.2 Using the Communication Protocol with Legacy Protocol
Set Command:
Type in: Y

Control_Type

Function

Param[CR]
Reply: Z

Control_Type

Function

Param[CR][LF]
Get Command:
Type in: Y

Control_Type

Function[CR]
Reply: Z

Control_Type

Function

Param[CR][LF]
When sending a command, a blank character may precede [CR] if desired
Example:
Example 1: set brightness value as 32
Send: Y

0

410

32[CR]
Reply: Z

1

410

32[CR][LF]
Example 2: get current output resolution. (4 = SVGA)
Send: Y

1

631[CR]
Reply: Z

1

631

4[CR][LF]
Character Symbols Definitions
Symbol Meaning
Space
[CR] Carriage Return, ASCII code 0x0D
[LF] or > Line Feed, ASCII code 0x0A
12.2.3 Protocol Table: Mimicking OSD
You can associate a function number to its description and valid parameters
intuitively by navigating the OSD menu according to the following logic:
A function number is directly related to its location in the OSD menu.
For example, the third menu on the OSD is Process (3 in the hundreds). The
second menu item in Process is Film Mode (2 in the tens), therefore the function
number for it will be 320 (3
rd
item on the Main Window Control and the 2
nd
item in
the Process submenu (see also Section
6.1
). When navigating in the OSD MENU
you will be able to see the Film Mode valid parameters. The following table defines
the protocol commands: