Extron electronics DTP T HWP 232 D, Руководство пользователя

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Extron DTP T HWP D and DTP T UWP D Series • Remote Control 18
Extender-Initiated Messages
When a local event occurs, such as a front panel operation, loss or restoration of an input
signal, or an error condition, the extender responds by sending a message to the host.
Examples of the extender-initiated messages are listed below:
©
Copyright 20 yy
,
Extron Electronics DTP T HWP 232 D
,
V x
.
xx
,
60
-
nnnn
-
nn
]
The extender issues the copyright message when it first powers on.
V x
.
xx
is the firmware
version number and
60
-
nnnn
-
nn
is the part number.
In
n
All
]
The extender also sends the In
n
message whenever the selected input is changed.
n
is the
input number. A
0
in the
n
field indicates no input is selected.
Error Responses
When the extender receives a valid SIS command, it executes the command and sends a
response to the host device. If the extender is unable to execute the command because the
command is invalid or it contains invalid parameters, the extender returns an error response
to the host. The error response codes are:
E01 — Invalid input channel number (out of range)
E06 — Invalid channel change
E10 — Invalid command
E13 — Invalid parameter
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 and Response Table
The Command and Response Table begins on page 20. Symbols are used throughout
the table to represent variables in the command and response fields. Command and
response examples are shown throughout the table. The ASCII to HEX conversion table
below is for use with the command and response table.
NOTE: Upper and lowercase text can be used interchangeably unless otherwise stated.
ASCII to Hex Conversion Table
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