Allen-Bradley 1756-DHRIO - Page 9

Publication 1756-UM514B-EN-P - February 2003
Table of Contents iii
Chapter 6
Messaging Between ControlLogix
Controllers and PLC-5s or
SLC-5/04s
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . 6-1
Local DH+ Messaging: ControlLogix Controller in a
Single Chassis to a PLC-5. . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Set the Module Switches. . . . . . . . . . . . . . . . . . . . . . . . 6-3
Configure Message Instructions . . . . . . . . . . . . . . . . . . 6-3
DH+ Messaging: ControlLogix Controller to a SLC-5/04 Over
ControlNet and DH+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Set the Module Switches. . . . . . . . . . . . . . . . . . . . . . . . 6-5
Set-Up a Routing Table for the 1756-DHRIO Module . . . 6-5
Configure Message Instructions . . . . . . . . . . . . . . . . . . 6-6
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 6-6
Chapter 7
Messaging Between ControlLogix
Controllers
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . 7-1
CIP Messaging Between ControlLogix Controllers
Over One Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Set the Module Switches. . . . . . . . . . . . . . . . . . . . . . . . 7-2
Configure Message Instructions . . . . . . . . . . . . . . . . . . 7-2
CIP Message Routing Between ControlLogix Controllers
Over Two Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Set the Module Switches. . . . . . . . . . . . . . . . . . . . . . . . 7-4
Configure Message Instructions . . . . . . . . . . . . . . . . . . 7-4
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 7-4
Chapter 8
Using the 1756-DHRIO Module in
Remote I/O Applications
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . 8-1
Introduction to Remote I/O . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Selecting Devices That You Can Connect . . . . . . . . . . . . . . 8-3
Designing a Remote I/O Network . . . . . . . . . . . . . . . . . . . 8-4
Network Design Guidelines . . . . . . . . . . . . . . . . . . . . . 8-4
Cable Design Guidelines . . . . . . . . . . . . . . . . . . . . . . . 8-5
Trunk Line/Drop Line Considerations . . . . . . . . . . . . . . 8-5
1756-DHRIO Module Operation in a
Remote I/O Application . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Exchanging I/O Data Between the 1756-DHRIO Module
and Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Exchanging I/O Data Between the 1756-DHRIO Module and
the ControlLogix Controller . . . . . . . . . . . . . . . . . . . . . 8-8
I/O Configuration Tree in RSLogix 5000
Controller Organizer . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Remote I/O Scanner Status . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Adapter Module I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10