Rockwell-automation 9301 Series RSView32 Users Guide Manual de usuario descargar pdf (Pagina 5)

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Contents  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

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Rockwell-automation 9301 Series RSView32 Users Guide Manual de usuario Pagina 5

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