Please ensure Javascript is enabled for purposes of website accessibility
Powered by Zoomin Software. For more details please contactZoomin

AVEVA™ Historian

aaSnapshotDetailUpdate

  • Last UpdatedFeb 03, 2022
  • 1 minute read

Updates the SnapshotDetail table.

Syntax

aaSnapshotDetailUpdate StorageSize, SnapshotSize, ImageTime, ThresholdTime

where:

Argument

Description

StorageSize

The storage size, in bytes, of the tag value:

-1 = Blob

0 = Variable length string

1 = 1 byte

2 = 2 byte

4 = 4 byte

8 = 8 byte

This value is of data type int, with no default.

SnapshotSize

The maximum size of the snapshot, in bytes. If this limit is reached, a new snapshot is created. This value is of data type int, with no default.

ImageTime

The interval, in seconds, between updates to the snapshot file. The snapshot file is updated with tag value information from the snapshot buffer, which resides in memory. This value is of data type int, with no default.

ThresholdTime

The maximum amount of time, in seconds, that can elapse before a new snapshot is automatically created, provided that the value for the snapshot size has not been reached. This value is of data type int, with no default.

Permission

Execute permission defaults to the aaAdministrators group.

In This Topic
Related Links
TitleResults for “How to create a CRG?”Also Available in