Rockwell Automation 1756-IH16ISOE ControlLogix Sequence of Events Module - Manual (Page 7)

1 Publication 1756-UM528A-EN-P - April 2004
Table of Contents
Chapter 1
What is the ControlLogix
Sequence of Events Module? What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . 1-1
What does Sequence of Events Module Do? . . . . . . . . . . . . 1-1
Timestamping Using the Coordinated System Time (CST) 1-1
On-Board Data Storage . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Two Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . 1-3
What Else Does the Sequence of Event Module Do? . . . . . . 1-3
Understanding the Module’s Physical Features . . . . . . . . . . 1-4
Using Module Identification and Status Information . . . . . . 1-5
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 1-6
Chapter 2
How Does the Sequence of Events
Module Operate in a ControlLogix
System? What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . 2-1
Differences Between Sequence of Events Module
and Standard Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Similar Functionality to Standard ControlLogix DC
Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Propagating a Signal From Field Device to Backplane . . . . 2-4
Sequence of Events Module in a Local Chassis . . . . . . . . . . 2-6
Requested Packet Interval (RPI) . . . . . . . . . . . . . . . . . . 2-6
Enable CST Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Sequence of Events Module in a Remote Chassis . . . . . . . . 2-8
Remote Input Module Connected Via ControlNet . . . . . 2-8
Remote Input Modules Connected Via EtherNet/IP . . . . 2-10
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 2-10
Chapter 3
Installing the Sequence of
Events Module What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . 3-1
Installing the Sequence of Events Module. . . . . . . . . . . . . . 3-1
Keying the Removable Terminal Block. . . . . . . . . . . . . . . . 3-3
Connecting Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Wiring the RTB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Recommendations for Wiring Your RTB . . . . . . . . . . . . 3-5
Wiring the Sequence of Events Module . . . . . . . . . . . . . . . 3-6
Assembling The Removable Terminal Block and
the Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Choosing the Extended-Depth Housing . . . . . . . . . . . . . . . 3-8
Recommendations for Using the
Extended-Depth Housing . . . . . . . . . . . . . . . . . . . . . . . 3-9
Cabinet Size Considerations With the
Extended-Depth Housing . . . . . . . . . . . . . . . . . . . . . . . 3-9
Installing the Removable Terminal Block . . . . . . . . . . . . . . 3-10
Removing the Removable Terminal Block . . . . . . . . . . . . . 3-12
Removing the Module from the Chassis . . . . . . . . . . . . . . . 3-13
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 3-14