Runco RS232 Przewodnik Instalacji Pobierz pdf (Strona 4)

How to Form Commands

4 RS232 Control

How to Form Commands

Basic Rules

• RS232 commands consist of a string of ascii characters.

• All numeric values are decimal; you do not need to use hex or binary digits in the

commands.

• Spaces or tabs may be used in the commands to separate the parts and make

them easier for humans to read. This “white space” is ignored by the command

reader in the Runco WindowWall.

• You cannot use commas, slashes, or other punctuation as separators. Periods

have a special purpose in commands.

• Commands are not case sensitive, so you can use upper and lower case letters as

you wish, EXCEPT the first two letters of every command must be both upper or

both lower case. After that, it doesn’t matter.

• When a command requires a response, wait for the response before sending

another command to another tile.

• All commands must end with a carriage return character, shown as [CR] in the rest

of this document. Depending on your serial communications program,

commands may automatically be ended with a [CR]. If you are uncertain whether

your application automatically does this, send a test command such as ky 00

menu without a [CR]. If the menu displays on screen, you will not need to insert a

[CR]. If nothing happens, you will need to add a [CR] at the end of each

command.

Types of Commands

Key Commands

Key commands simulate pressing a key on the remote control. This is not very useful

unless you can see the screen, because you won’t know where the selector is in the

menu.

Operation Commands

Tip: Operation commands are more flexible and easier to use than Key commands

Operation commands tell the tile exactly what to do.

• Set green in the white color balance to 27

• Save the current settings into memory slot 23

• Recall memory slot 7

Operation commands can ask questions and get answers, such as:

• What is the state of the backlights? (on, off, failed, etc.)

• Which connector is used if memory slot 3 is recalled?

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Runco RS232 Przewodnik Instalacji Strona 4