Simple Instruction Set Control; Host-To Unit Instructions; Error Message; Timeout - Extron electronics DTP3 T 202 User Manual

Simple Instruction Set Control

Host‑to Unit Instructions
SIS commands consist of strings (one or more characters per command field). Upper and
lower case characters can be used interchangeably. Commands do not require any special
characters to begin or end the command string. Each response from the transmitter and
receiver ends with a carriage return and a line feed (CR/LF = ]]), which signals the end of
the response character string.

Error Message

When the transmitter or receiver receives a valid SIS command, it executes the command
and sends a response to the host device. If the transmitter or receiver is unable to execute
the command because the command is invalid or it contains invalid parameters, the
transmitter or receiver returns an error response to the host. The error response codes are:
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 below. 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.
Figure 13.

Symbol Definitions

] = CR/LF (carriage return with line feed)
| or } = Soft carriage return (no line feed)
•
E or W = Escape key
NOTE: If unit does not support or recognize the entered commands, nothing happens
ASCII to Hex Conversion Table
= Space
and no response is issued.
DTP3 T 202 / DTP3 R 201 • SIS Configuration and Control 17