Extron electronic MTP SW6 Remote Control, cont’d, Unit-initiated messages, Error responses

Remote Control, cont’d

Unit-initiated messages

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

(c)Copyright 2008, Extron Electronics "MTP SW6", x.xx]]

The connected unit issues the appropriate copyright message (above) when it first powers on. x.xx is the firmware version number.

AllX!]

The unit sends the All message as a unit-initiated message under two conditions:

•You press a front panel input button.

•An input selection occurs via auto switch mode.

NThe switcher returns the All message for every press of an input button, even if no switch occurs. No switch will occur if you press an already selected button or if the switcher is in auto switch mode (front panel input selection is disabled).

FX1$]

The unit sends the F message whenever the switch mode is changed from the front panel.

IlvlX!*X@]

The unit sends the Ilvl message whenever the level adjustment is changed from the front panel.

IpekX!*X#]

The unit sends the Ipek message whenever the peaking adjustment is changed from the front panel.

IseqX!*X%*X%*X%]

The unit sends the Iseq message whenever the skew settings have been changed from the front panel. The X%values are the red, green, and blue skew values, in that order.

Zpk]

The unit sends the Zpk message whenever the skew settings have been reset from the front panel.

Error responses

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

E10 - Invalid command]

E11 - Invalid preset number]

E13 - Invalid parameter]

E14 - Invalid command for this configuration]

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 page 3-6. Lower case letters are acceptable in the command field except where indicated for the audio level (gain and attenuation) commands. 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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