Extron electronic GSS 100 user manual Host-to-GSS communications, Error responses, Timeout

SIS™ Control, cont’d

Auto-switch and slide show control

PasX@]

The GSS initiates the Pas message when a front panel change in the pass-through configuration takes place.

AutX$]

The GSS initiates the Aut message when a front panel change in the auto-switch and slide show on/off status takes place.

SliX#]

The GSS initiates the Sli message when a front panel change in the slide display duration takes place.

Front panel security lockout (executive mode)

ExeX@]

The GSS initiates the Exe message when a front panel change in the front panel lock on/off status takes place.

Host-to-GSS communications

SIS commands consist of one or more characters per field. No special characters are required to begin or end a command character sequence. When a command is valid, the GSS executes the command and sends a response to the host device. All responses from the GSS to the host end with a carriage return and a line feed (CR/LF = ]), which signals the end of the response character string. A string is one or more characters.

Error responses

When the GSS receives a valid SIS command, it executes the command and sends a response to the host device. If the GSS is unable to execute the command because the command is invalid or it contains invalid parameters, the GSS returns an error response to the host. The error response codes are:

E10] - Invalid command

E13] - Invalid value (out of range)

E14] - Not valid for this configuration

E17] - System timed out

E22] - Busy

E24] - Privilege violation

E25] - Device not present

E26] - Maximum number of connections exceeded

E27] - Invalid Event number

E28] - Bad Filename/File not found

Timeout

Pauses of 10 seconds or longer between command ASCII characters result in a timeout. The command operation is aborted with no other indication.

Using the command/response table

The command/response table begins on the next page. Uppercase or lowercase letters are acceptable in the command field. Symbols are used throughout the table to represent variables in the command/response fields. Command and response examples are shown throughout the table. The ASCII to HEX conversion table below is for use with the command/ response table.

ASCII to HEX Conversion Table

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