Rockwell Automation 2755-SNx Adaptascan Bar Code Readers - Manual (Page 129)

Chapter
8
Publication 2755-6.8
Communicating with a PLCĆ5
R
over an RSĆ232 or RSĆ422 Link
The New Generation PLC-5 processors from Allen–Bradley have a
user port that can be used to interface a single point AdaptaScan Bar
Code Reader using either RS-232 or RS-422 communication.
This document includes cable diagrams and configuration
information for the AdaptaScan readers. It also includes an example
PLC-5 program which is needed to establish communication through
Channel 0 on the new PLC-5 platform.
The hardware items required for this application are:
•
2755-SN3, -SN5, or -SN8 AdaptaScan Bar Code Reader
•
2755-NB40 or -NB41 Wiring Base
•
2755-PW46 or -PW47 Power Supply
•
2755-NC43 or -NC48 Configuration Cable
•
1785 PLC-5 processor
•
1771 chassis
•
1771 power supply
•
appropriate cables to program the PLC-5 and to configure the
AdaptaScan Bar Code Reader
•
1784-KT or equivalent card installed in your personal computer
to enable you to program the PLC-5
The software requirements for this application are:
•
2755-ASN AdaptaScan Offline Programming Software
•
PLC-5 programming software
Publications you might want to refer to include:
Publication Description
2755-837 AdaptaScan Bar Code Readers User Manual
2755-838 AdaptaScan Software User Manual
In addition, you may want to refer to the PLC-5 Hardware and
Software User Manuals.
Overview
Hardware Requirements
Software Requirements
Related Publications