Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 5)

Contents
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iii
Chapter 3
Setting up OPC and DDE communications
Overview of OPC communications ........................................................ 3-3
Overview of DDE communications ........................................................ 3-4
Summary of steps .............................................................................................. 3-5
Creating an OPC node .................................................................................... 3-5
Creating a DDE node ..................................................................................... 3-12
Changing node information at runtime ............................................ 3-16
Scanning for new tag values ................................................................... 3-17
Chapter 4
Creating tags
Tags and the tag database ......................................................................... 4-1
Tag types ................................................................................................................. 4-2
Data sources ......................................................................................................... 4-3
Device............................................................................................................................ 4-3
Memory ......................................................................................................................... 4-3
Organizing tags ................................................................................................... 4-3
Naming tags.................................................................................................................. 4-4
Using folders to group tags ........................................................................................ 4-4
The tag database editor ............................................................................... 4-5
Using the Accept and Discard buttons .................................................................... 4-6
Using the form ..................................................................................................... 4-6
Using the query box ......................................................................................... 4-6
Using the folder hierarchy .......................................................................... 4-7
Creating a folder........................................................................................................... 4-7
Opening a folder .......................................................................................................... 4-8
Adding tags to a folder................................................................................................ 4-9
Nesting a folder............................................................................................................ 4-9
Duplicating a folder................................................................................................... 4-10
Deleting a folder ........................................................................................................ 4-11