Rockwell Automation 1785-Lx0C15 ControlNet PLC-5 Programmable Controllers User Manual User Manual

Page 6

Table of Contents – ControlNet PLC-5 Programmable Controllers

1785-UM022C-EN-P - February 2008

Understanding Multicast Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Understanding Multicast Outputs . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Using Multicast Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Understanding ControlNet I/O Mapping . . . . . . . . . . . . . . . . . . . . . . 2-16

Reserving Space for Non-ControlNet I/O. . . . . . . . . . . . . . . . . . . . 2-16

Processor-Resident Local I/O . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Remote I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Supported ControlNet I/O Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Discrete I/O Data Transfer Mapping . . . . . . . . . . . . . . . . . . . . . 2-19
Non-Discrete I/O Data Transfer Mapping . . . . . . . . . . . . . . . . . 2-19
1771 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
1747 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
1794 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Other ControlNet Processors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Using I/O Mapping Techniques. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Understanding Discrete Mapping . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Optimizing the I/O Image Table . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Optimizing the I/O Image Table without Slot Complementary . . 2-23
Optimizing the I/O Image Table with Slot Complementary. . . . . 2-27

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Using the ControlNet PLC-5 Processor in a ControlNet I/O System . . 2-31

Distributed Keeper Functionality. . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

Converting from a Non-ControlNet Remote I/O System

to a ControlNet I/O System . . . . . . . . . . . . . . . . . . . . . . . . . 2-34

Converting from ControlNet Phase 1.0 or 1.25

to ControlNet Phase 1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35

Understanding the ControlNet
System Software

Chapter 3

Configuring and Programming Your ControlNet System . . . . . . . . . . . 3-1
Using ControlNet Message Instructions . . . . . . . . . . . . . . . . . . . . . . . 3-1

I/O Configuration Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Uploading and Downloading Software Projects. . . . . . . . . . . . . . . . 3-3
Using RSNetWorx to Perform Verification Activities. . . . . . . . . . . . . 3-4

For More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5