User Manual
Table Of Contents
- Logix5000 Controllers I/O and Tag Data
- Summary of changes
- Table of contents
- Preface
- Communicate with I/O modules
- Organize tags
- Force I/O
- Data access control
- Introduction
- External access
- Configure external access
- External access availability
- User-defined type considerations
- Add-on instructions external access considerations
- Tag mapping considerations
- Imported tag behavior
- Constant value tags
- Configure constant tags
- Constant check box availability
- Add-on instructions constant value considerations
- Index

Table of Contents
Studio 5000 environment...........................................................................................9
Additional resources.................................................................................................. 10
Chapter 1
Introduction................................................................................................................ 11
Requested packet interval ........................................................................................ 12
Communication format ........................................................................................... 12
Direct or rack-optimized connection ........................................................... 13
Ownership............................................................................................................ 14
Electronic Keying....................................................................................................... 15
Exact Match ......................................................................................................... 16
Compatible Keying ............................................................................................ 16
Disable Keying .................................................................................................... 17
More information .............................................................................................. 17
Address I/O data........................................................................................................ 18
Buffer I/O .................................................................................................................... 19
Chapter 2
Introduction................................................................................................................ 21
Tag type ........................................................................................................................ 22
Data type ...................................................................................................................... 23
Tag scope ...................................................................................................................... 25
Program parameter scope......................................................................................... 27
Guidelines for tags ..................................................................................................... 27
Create a tag .................................................................................................................. 31
Add extended properties to a tag.................................................................... 32
Create an array ............................................................................................................ 34
Configure an array ............................................................................................. 37
User-defined data types ............................................................................................ 38
Guidelines for user-defined data types.......................................................... 40
Create a user-defined data type....................................................................... 40
Add extended properties to a user-defined data type................................ 42
Describe a user-defined data type .......................................................................... 44
Activate pass-through and append descriptions......................................... 45
Paste a pass-through description .................................................................... 46
Address tag data.......................................................................................................... 47
Preface
Communicate with I/O
modules
Organize tags
Rock well Automati on Publication 1756- PM004E -EN-P - October 2014 5










