Trend tag scan intervals

When you select a trend tag for a device profile (Add / Edit Device Profile screen), the tag will be scanned at the “long” interval” (every 15 minutes, with FIFO storage of 12 months); but certain trend tags have an additional “short” scan interval. This interval is set by default at 5 seconds, with FIFO storage of two weeks.

The default tags are: Current A, Current B, Current C, Voltage A-B, Voltage B-C, Voltage C-A, Power Factor Total, Apparent Power Total, Reactive Power Total, Real Power Total, and Frequency. When you choose one of these tags for trending, you will get both long and short interval trending. The long interval trend will use the trend tag name from the Profile Editor. The short interval trend tag will have the same name as the long tag with an “s” appended to it.

You can edit the Profile Editor.exe.config file to add or delete tags that will have short scan intervals, and to change the short scan interval for all of the tags that are listed.

To edit short scan interval settings:

  1. In Notepad, open Profile Editor.exe.config. It is located in: [Project Drive]\ProgramData\Schneider Electric\Power Operation\v2024\Applications\Profile Editor
  2. To change the short scan interval:
    1. Scroll to the "TrendShortIntervalSamplePeriod" setting. The default value is 00:00:05, or 5 seconds (HH:MM:SS). Changing this rate will change the interval for all of the tags that are listed in the setting in step 3.
  3. To change the tags that are included in the short scan interval:
    1. Scroll to the "TrendShortIntervalTags" setting. The numbers listed (defaults: 1003,1004,1005,1050,1046,1042,1014,1015,1016,1001,1034) are the tag IDs. You can add or delete tags. Tag IDs are listed on the Define Device Type Tags tab (when the Advanced Properties option checked).

    4. NOTE: If you choose a device that includes the tags in this list, you will always have these short scan interval tags included.

    For example, if you wanted to change the scan interval to ten seconds and add Overcurrent A for a CM4000, you would edit these two lines in this way:

    "TrendShortIntervalSamplePeriod" value="00:00:10"

    "TrendShortIntervalTags" value="1003,1004,1005,1050,1046,1042,1014,1015,1016,1001,1034,19"