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Contents
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National Instruments Corporation
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How Do You Create a Tag? .................................................................................. 3-5
How Do You Edit a Tag? ...................................................................................... 3-5
How Do You Delete a Tag? .................................................................................. 3-5
What are Network Tags? .......................................................................................3-6
How Do You Add Network Tags? ........................................................................ 3-7
How Do You Set Default Values for Tag Configuration Fields? ......................... 3-7
How Do You Use Spreadsheet Files for Tag Configuration? ............................... 3-8
Analog Tags .......................................................................................... 3-10
Discrete Tags......................................................................................... 3-10
Bit Array Tags....................................................................................... 3-10
String Tags ............................................................................................ 3-11
General ................................................................................................................ 3-11
Connection........................................................................................................... 3-12
I/O Group Configuration....................................................................... 3-14
I/O Group Configuration Options...........................................3-15
Server Configuration Options.................................................3-16
Item Configuration Options—Configuring
Item Names ..........................................................................3-18
Item Configuration Options—Configuring
Item Resources.....................................................................3-18
What Is a Memory Tag?........................................................................ 3-19
When Should You Use a Memory Tag?.................................3-19
How Do You Automatically Generate Tags
from Server Information? .................................................................. 3-20
What Is Deadband? ............................................................................... 3-24
How Do You Use Deadband to Increase Engine Throughput? ............ 3-24
How Do You Configure a Tag to Log Its Data or Events?................... 3-25
How Do You Set Initial Tag Value at Startup? .................................... 3-25
Example—Linear Scaling ......................................................3-27
Example—Square Root Scaling ............................................3-28
How Do You Assign Units to an Analog Tag?.....................................3-28
Discrete Tags......................................................................................... 3-28
Bit Array Tags....................................................................................... 3-29