1、FactoryTalk Historian Live Data Tag Attributes and Excel Import/ExportLesson 4Copyright 2009 Rockwell Automation, Inc. All rights reserved.PointsCreate a Point (Tag) for every source of data that the FactoryTalk Historian System needs to track. Each point has about 50 attributes that define exactly

2、how the data should be collected for that point. System Management Tools (SMT) has tools to manage Points.Copyright 2009 Rockwell Automation, Inc. All rights reserved.Point Builder in the SMTGeneral TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.General TabThe Name of the point/tag.

3、 Can click “Rename” to change the name, keeping association with any data archived for this point. If type into this field, a “new” tag will be created.Copyright 2009 Rockwell Automation, Inc. All rights reserved.General TabThe FactoryTalk Historian Server to be usedCopyright 2009 Rockwell Automatio

4、n, Inc. All rights reserved.General TabDescription is optionalCopyright 2009 Rockwell Automation, Inc. All rights reserved.General TabSource of the tag, FTLD stands for FactoryTalk Live DataCopyright 2009 Rockwell Automation, Inc. All rights reserved.General TabIf this is an “event-triggered read” t

5、ag, this identifies the “event” (such as a specific tag incrementing).Copyright 2009 Rockwell Automation, Inc. All rights reserved.General TabIf this is an “output” tag, this specifies the source of the data and the “trigger” (the tag specified changing will trigger a “write” to another tag)Archive

6、TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.The Typical Value is used only for documentation.Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.Zero is required on numeric data and indicates the tags minimum valueArchive TabCopyright 2009 Rockwell Automation,

7、 Inc. All rights reserved.Span is the difference between the min and max of the tagthe tags “range”.Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.If Scan is off, tag will not be updated.Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.Archiving will n

8、ot take place when set to off.Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.When Compressing is set to off every value in the snapshot is sent to the archive.Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.Exception Deviation is used to filter values

9、 sent to the snapshot from the interface. Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.An exception is generated if the event value has changed more that the deviationArchive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.or the event has occurred over tim

10、e greater than the Max Time specified. Both Exception and Compression Deviations can be specified in “Percent of Span” rather than in “Eng. Units”.Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.Compression deviation is used to determine what data to send from the snapshot to

11、 the archive.Archive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.If the event value has changed more than the deviationArchive TabCopyright 2009 Rockwell Automation, Inc. All rights reserved.or the event has taken place greater than the Max Time.Archive TabClassic TabCopyright 20

12、09 Rockwell Automation, Inc. All rights reserved.Classic TabLocation where the data is coming from if this is an “input” Tag. Location being written to if an “output” tag.Copyright 2009 Rockwell Automation, Inc. All rights reserved.Classic TabIdentifies the Interface(FTLD2 in this case)Copyright 200

13、9 Rockwell Automation, Inc. All rights reserved.Classic TabNot used with FTLD tagsCopyright 2009 Rockwell Automation, Inc. All rights reserved.Classic TabType of Tag0 = Polled or Event (input)1 = Advised (input) - default2 = OutputCopyright 2009 Rockwell Automation, Inc. All rights reserved.Classic

14、TabScan Class1 = 1 second - defaultSee Interface ConfigurationUtility for others.Copyright 2009 Rockwell Automation, Inc. All rights reserved.Classic Tab0: Polled from cache1: Polled from deviceCopyright 2009 Rockwell Automation, Inc. All rights reserved.Deleting Points When you delete a point, very

15、 difficult and perhaps impossible to access data previously archived for that point.It may be safer to “ mission” a pointdo not delete, but turn “Scan” off.Note that Tag or Point will still count towards number of allowed FTLD or Third-Party tags.Copyright 2009 Rockwell Automation, Inc. All rights reserved.Using Excel Tag ConfiguratorInstalling Factory Talk Historian Server installs a PITagCnf.xla fil