Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 5)

Chapter
1
1Ć1
Introduction
The PLC–3 Communication Adapter Module (cat. no. 1775–KA) is an
optional module used in the PLC–3 main chassis or expander chassis. It
serves two purposes:
1. Interfacing the PLC–3 processor with the Allen–Bradley Data
Highway
2. Interfacing the PLC–3 processor with an intelligent RS–232–C
device
This manual describes the installation, programming, and operation of the
1775– KA module. This manual assumes that you are already thoroughly
familiar with the programming and operation of the PLC–3 processor. It
does not assume that you have any prior knowledge of the Allen–Bradley
Data Highway.
Organization
The remaining chapters of this manual are organized as follows:
Chapter 2 – describes installation of the 1775–KA module.
Chapter 3 – presents concepts and terminology for operating the
1775–KA module on the Data Highway.
Chapter 4 – presents general rules for specifying the data addresses you
use in message procedures.
Chapter 5 – explains how you create and edit message procedures and
commands for the 1775–KA module.
Chapter 6 – describes the command language you use in programming
message procedures.
Chapter 7 – describes how the 1775–KA module detects and reports
various types of errors.
Chapter 8 – presents detailed examples of 1775–KA module commands
and message procedures.
Chapter 9 – introduces a layered approach to writing a driver to enable
a computer to communicate to the 1775–K’s RS–232–C channel.
General
About This Manual