Rockwell Automation 2707-NP DTAM Programming Software - Manual (Page 145)

A–B
18
Chapter
18–1
DTAM Plus ASCII Bar Code Input
This chapter describes how to input ASCII bar code data through the optional
printer port of the DTAM Plus.
Section Page
Printer Form Builder 17–1
Printer Control 17–1
Print Form Builder Function Keys 17–2
Creating a Printer Form 17–3
Versions of the DTAM Plus with the optional printer port allow ASCII data
to be written to a data entry display. The ASCII data may be from a variety
of sources, including Allen-Bradley decoded bar code scanners:
•
Hand-Held Scanners (Catalog No. 2755-G3-D or -G6-D)
•
Fixed Mount Scanners (Catalog No. 2755-LD1-D or -LD2-D)
Allen-Bradley bar code scanners transmit data after a successful decode in
the following format:
Prefix Scanner ID Preamble Code ID Data Postamble Suffix
The DTAM Plus supports the following fields of the bar code message
format.
Field Field Name Contents DTAM Plus Support
1 Prefix STX Only STX is supported.
2 Scanner ID Two character ASCII identifier
form 01 to 99. user can specify whether or
not the scanner ID field is
used by the DTAM.
3 Preamble None No preamble is supported.
This is the default setting of
the scanners.
4 Code ID None No code ID is supported. This
is the default setting of the
scanners.
5 Data 1 to 32 ASCII characters. This field is variable and con-
tains the exact number of
characters scanned.
5 Postamble None No postamble is supported.
This is the default setting of
the scanners.
7 Suffix CR LF
(Carriage Return / Line Feed)
CR LF is the default setting of
the scanners.
Chapter Objectives
ASCII Input
Allen-Bradley Bar
Code Message Formats