Extron electronic IN1404XT manual Scaler Responses, Using the Command/Response Table

The scaler’s default leading delimiter code is a left bracket ( [ ). The default ending delimiter code is a right bracket ( ] ).

Example: [CH3] — where “[“ is the leading code, “CH3” is the command (select input 3), and “]” is the ending code.

The scaler can be set to recognize one of six different delimiters: parentheses ( ), brackets [ ], braces { }, slashes \ / less-than and greater-than symbols < >, and the ! and # signs. If desired, several Extron products that use this command set protocol can be connected together on one RS-232 serial control line, with each device set for a different delimiter pair. Each unit only responds to codes sent with the appropriate deliminators and ignores all other codes.

See Delimiters screen in chapter 3, Operation to change the delimiters to which the scaler responds.

Scaler Responses

When the scaler receives an RS-232 command and determines that it is valid, it performs the command and sends a response to the host device. If the scaler is unable to perform the command because the command is invalid or contains invalid parameters, the scaler returns an error response to the host. The error response codes are:

Invalid parameter — The scaler received a parameter outside the valid range

Not available — The scaler received a parameter that is within the valid range, but is not allowed given the current settings

E10 — Invalid command

E11 — Invalid preset number (too large)

E12 — Invalid output number (too large)

E13 — Invalid value (out of range)

Using the Command/Response Table

The command/response table begins on the next page. Upper or lower case letters are acceptable in the command field. The table below shows the hexadecimal equivalent of each ASCII command. All entries in the command/response table are shown using the [] delimiters, but any other valid delimiters could be used instead.

ASCII to HEX Conversion Table

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IN1404XT Video Scaler and Switcher • Programmer’s Guide 4-3