User Manual PLC-3 FAMILY I/0 Instruction Manual

Preface
P- 1
Using this Manual
This preface tells you how to use this manual properly and efficiently for
the tasks you have to perform. Read this chapter before you program a
PLC-3

family programmable controller.
Chapter/
Appendix
Title What's Covered
1 Using this Manual Manual's purpose, audience, and contents
2 Scanner Hardware
and Installation
Hardware components and procedures for installing a
scanner
3 Configuring the
Scanner Through LIST
Using the LIST function to configure the scanner
4 I/O Communication Timing and programming considerations when using
the scanner for I/O communication
5 DH and DH+
Communication
Concepts, programming, and timing considerations
6 Addressing DH and
DH+ Data Transfers
Specifying data addresses in message commands that
communicate over a DH or DH+
7 Programming DH and
DH+ Message
Procedures
Operating the message instruction to communicate
over a DH or DH+
8 Diagnostic Methods Techniques and indicators for monitoring scanner status
A Binary Command
Language
Commands used by an external control device to
communicate with a PLC3 family controller through
channel 0 of the front panel
B DH/DH+ Error Codes DH and DH+ error codes and meanings
C DH and DH+
Command Set
DH and DH+ commands supported by the scanner
D Specifications Scanner operating and environmental specifications
Manual Objectives
What this Manual Contains