Rockwell Automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM - Manual (Page 5)

1 Publication AG-UM008C-EN-P - February 2005
Table of Contents
Preface
What SCADA Information Is Available?. . . . . . . . . . . . . . . . 1-1
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Contents of this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Address Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Chapter 1
Designing Communication Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Choosing a Polling Mode for DF1 Half-Duplex Master . . . . 1-2
Message-Based Polling Mode . . . . . . . . . . . . . . . . . . . . 1-2
Standard Polling Mode . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
About Polled Report-by-Exception . . . . . . . . . . . . . . . . 1-4
About Slave-to-Slave Messaging . . . . . . . . . . . . . . . . . . 1-5
Addressing Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Communication Scheme Design Using Standard-Mode . . . . 1-8
Designing a Polling Scheme . . . . . . . . . . . . . . . . . . . . 1-11
Planning for Timing Issues . . . . . . . . . . . . . . . . . . . . . 1-13
Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Communication Scheme Design Using
Message-Based Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Designing Communication
for DF1 Full-Duplex Protocol. . . . . . . . . . . . . . . . . . . . . . . 1-16
Designing Communication for DF1 Radio Modem Protocol . 1-17
Determining When to Use DF1 Radio Modem Protocol . 1-17
What to Do Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Chapter 2
Configuring Enhanced PLC-5
Processors Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installing the Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Configuring a DF1 Half-Duplex Standard Mode
Master Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Define the Communication Driver Characteristics . . . . . 2-5
Displaying System (Master) Channel Status . . . . . . . . . . 2-7
Create Station Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Monitor Active Stations . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Configuring a DF1 Half-Duplex Message-based
Mode Master Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Configuring the Processor as a Slave Station. . . . . . . . . . . . 2-15
Displaying Slave System Channel Status . . . . . . . . . . . . 2-18