Rockwell Automation 2755-SNx Adaptascan Bar Code Readers - Manual (Page 57)

Chapter
4
Publication 2755-6.8
Downloading Match Codes via
DH485 Protocol with an SLC
5/03t or SLC 5/04t Controller
This application describes how to download match codes to the bar
code reader from an SLC 5/03 or SLC 5/04 controller using DH485
protocol in master and slave modes.
DH485 Master is used for bar code data traveling at medium or slow
speeds. Data is sent to the SLC 5/03 or SLC 5/04 controller whether
it was requested or not by the SLC 5/03 or SLC 5/04 controller.
DH485 Slave is used for bar code data traveling at high speeds. The
SLC 5/03 or SLC 5/04 controller initiates the request for bar code
data.
Refer to chapter 3 for a listing of additional host commands and
response codes.
The hardware items required for this application are:
•
2755-SN3, -SN5, or -SN8 AdaptaScan Bar Code Reader
•
2755-PW46 or -PW47 Power Supply
•
2755-NC43 or -NC48 Configuration Cable
•
2755-NB40 or -NB41 Wiring Base (Ser. A/Rev. B or higher)
•
1747-L532, -L541, -L542, or -L543 SLC Processor
•
1746-A4, -A7, -10, or -A13 Chassis
•
1746-P3 Power Supply
•
1747-CP3 RS-232 Programming Cable
•
1747-AIC Isolated Link Coupler or 1761-NET-AIC Advanced
Interface Converter
•
1747-PIC RS-232/DH-485 Converter
•
Computer running Windows 3.1 (or later) or Windows 95
•
9-to-25 Pin Adapter (for computers with a 25-pin COM port)
The software requirements for this application are:
•
2755-ASN AdaptaScan Offline Programming Software
•
9323-PA2E Advanced Programming Software. (The original
ICOM SLC software is not compatible with this AdaptaScan
network.)
Overview
Hardware Requirements
Software Requirements