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DVC 501 SD • Remote Configuration and Control 21
Remote
Configuration and
Control
This section describes the connections through which the DVC 501 SD can be configured
and controlled remotely via SIS commands, and describes the commands that are available.
Topics include:
• Communication Ports
• Using SIS Commands
• Command and Response Table
Communication Ports
The DVC 501 SD can be remotely controlled via a host computer or other device (such as
a control system) that is connected to the rear panel RS-232 port or the front panel USB
Config port. With an RS-232 or USB connection, you can configure and control the DVC
using SIS commands.
The protocol for the rear panel RS-232 port is 9600 baud, 1 stop bit, no parity, and no flow
control. See “Connecting to the RS-232 Port” in the “Installation” section for information
on wiring to this connector.
See “Connecting to the USB Config Port” for information on making a USB connection.
Using SIS Commands
SIS commands consist of one or more characters per command field. They do not require
any special characters to begin or end the command character sequence. When the DVC
determines that a command is valid, it executes the command and sends a response to the
host device. Each converter response to an SIS command ends with a carriage return and a
line feed (CR/LF = ]), which signals the end of the response character string. A string is one
or more characters.
DVC-initiated Messages
When a local event (such as a front panel selection) takes place, the converter responds by
sending a message to the host. No response is required from the host.
The following converter-initiated message is displayed:
© COPYRIGHT 2011, EXTRON ELECTRONICS DVC 501 SD, Vn.nn, 60-1033-01 ]
The DVC sends the copyright message when powering up while connected to the computer.
Vn.nn is the firmware version number.