Extron electronic SW RGB manual Switcher-initiated unsolicited messages, Error responses, Timeout

Switcher-initiated (unsolicited) messages

When a local event, such as a front panel operation or error condition, occurs, the switcher responds by sending a message to the host. The switcher-initiated messages are listed below.

(C) Copyright 2002, Extron Electronics, SW6 RGBHV {or appropriate model}, Vx.xx

The switcher issues the copyright message when it first powers on. Vx.xx is the firmware version number.

Inn•All

The switcher issues the Inn message when a front panel input selection operation occurs. n is the input number.

Reconfig

The switcher initiates the Reconfig message when there is a change in an audio model’s audio gain setting.

Sig•n•n•n•n•n•n

The switcher initiates the Sig message when there is a change in the status of an input. n = 1 indicates a video signal is present, n = 0 indicates a video signal is not preset. There are as many ns in the switcher-initiated message as the maximum number of inputs for the models (2, 4, or 6). For example: Sig•1•1•1•0•1•0 , in which the input signal is present on inputs 1, 2, 3, and 5 and no signal is present on inputs 4 and 6.

Error responses

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

E01 - Invalid input channel number (out of range)

E06 - Invalid input channel change (autoswitch mode active)

E09 - Invalid function (mode) parameter

E10 - Invalid command

E13 - Invalid value (out of range)

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 is on the next page. With the exception of the set audio gain and attenuation commands (G and g) , the SIS commands are not case sensitive. 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 on the next page is for use with the command/response table.

SW RGB and YUV A Switchers • Remote Control 4-3