Rs-232 Programmer's Guide; Host-To-Interface Communications; Interface-Initiated Messages; Error Responses - Extron electronics RGB 580x User Manual

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Remote Control
There are two ways to control the horizontal shifting feature of
an RGB 580xi remote interface: by using the AAP horizontal
shift (H. shift) control, or by using an RS-232 remote control
device.

RS-232 Programmer's Guide

The interface can be remotely controlled via a host computer
attached to the rear panel's 3-pole captive screw RS-232
connector. A contact closure control system may also be used
by connecting a contact closure device to the front panel's
female 5-pole captive screw connector. The protocol is 9600
baud, 1 stop bit, no parity, and no flow control.
The RS-232 control device (host) can use
either Extron's Simple Instruction Set
(SIS™) commands or the graphical control
program for Windows. RS-232 control
software is included with the interface.
The rear panel's RS-232 3-pole female
connector has the following pin assignments:
Pin RS-232 function
1
Tx
2
Rx
3
Gnd

Host-to-interface communications

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

Interface-initiated messages

When a local event such as a front panel or contact closure
selection or adjustment takes place, the interface sends a
message to the host. No response is required from the host.
The interface-initiated messages are listed here (underlined).
(C) Copyright 2001, Extron Electronics, RGB 580xi, Vx.xx
The interface displays the copyright message when it first
powers on. Vx.xx is the firmware version number.
3-2
RGB 580xi • Remote Control
All manuals and user guides at all-guides.com
RS-232
Tx Rx
Captive Screw Pin Locations
Female
Description
Transmit data
Receive data
Signal ground
), which signals the end of
RECONFIG
When the remote interface's RGB video input is disconnected or
the horizontal shift control (H. shift) is adjusted from the AAP
device (RGB 580xi S/CCS AAP and RGB 580xi SI/CCSI AAP),
the interface sends the reconfiguration message. No response is
required from the RS-232 host, but the host may request a new
status listing via the request information command (I/i). See
the command/response table in this chapter for details.
Chn
A contact closure selection has been detected from the remote
AAP contact closure switch (RGB 580xi I AAP and
RGB 580xi SI/CCSI AAP).

Error responses

When the interface receives a valid SIS command, it executes the
command and sends a response to the host device. If the
interface is unable to execute the command because the
command is invalid or it contains invalid parameters, it returns
an error response to the host.
The error response codes and their descriptions are as follows:
E10 – Invalid command
E13 – Invalid value (the number is out of range)

Using the command/response table

The command/response table lists valid command ASCII codes,
the interface's responses to the host, and a description of the
command's function or the results of executing the command.
Lowercase characters are acceptable in the command field only
where indicated. The ASCII to HEX conversion table below is
for use with the command/response table.
ASCII to HEX Conversion Table
RGB 580xi • Remote Control
3-3

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