Switcher Error Responses; Using The Command/Response Tables - Extron electronics MPX 866 A User Manual

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SIS ™ Programming and Control, cont'd
Typnn
The switcher initiates the Typ message when the video format for a video input is
changed from the front panel. "nn" is the input number,
format: 1 = composite video, 0 = S-video.
Vmtnn
The switcher initiates the Vmt message when a video output mute is toggled on
or off from the front panel. "nn" is the output number,
mute status: 1 = on, 0 = off.
Amtnn
The switcher initiates the Amt message when an audio output mute is toggled on
or off from the front panel. "nn" is the output number,
mute status: 1 = on, 0 = off.
Exen
The switcher initiates the Exe message when executive mode is toggled on or off
from the front panel. "n" is the executive mode status: 1 = on, 0 = off.

Switcher Error Responses

When the switcher receives an SIS command and determines that it is valid, it
performs the command and sends a response to the host device. If the switcher
is unable to perform the command because the command is invalid or contains
invalid parameters, the switcher returns an error response to the host. The error
response codes are:
E01 — Invalid input channel number (too large)
E10 — Invalid command
E11 — Invalid preset number
E12 — Invalid output number (too large)
E13 — Invalid value (out of range)
E14 — Illegal command for this confi guration
E17 — Timeout (caused only by direct write of global presets)
E24 — Privilege violation (Ethernet, Extron software only)

Using the Command/Response Tables

The command/response tables begin on page 4-8. Lower case letters are acceptable
in the command fi eld except where indicated for the gain and attenuation
commands. The table below shows the hexadecimal equivalent of each ASCII
character used in the command/response table.
ASCII to HEX Conversion Table
Space
Symbols are used throughout the table to represent variables in the command/
response fi elds. Command and response examples are shown throughout the table.
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MPX 866 A Media Presentation Matrix Switcher • SIS Programming and Control
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