7 - message format parameters, Chapter objectives, Message format – Rockwell Automation 2755-G6-D Scanner with RS-232 Option User Manual

Page 54: Message format parameters

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A–B

7

Chapter

7–1

Message Format Parameters

This chapter defines parameters that control the
format of transmitted bar code messages including:

Prefix and Suffix

Scanner Identifier

Code Identifier

Preamble and Postamble

A message transmitted from the scanner upon a
successful decode has the following format:

Prefix

Scanner Identifier

Code Identifier

Data

Postamble

Suffix

Preamble

Some of these message parameters may not be
required or may vary from one host system to
another. You select parameters based on the
requirements of your application and the host system.

To select message parameters, you scan the
appropriate bar code labels in each section.

Note: Throughout this chapter, default settings for
parameters are flagged by an * (asterisk).

Chapter
Objectives

Message
Format

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