MAX_TREND_BUF

Be aware that increasing this parameter will affect system performance.

For Trending Project
Purpose To specify the maximum number of point values a point buffers for Trending. Point buffering is used when a chart is first displayed and there is some initial data. Note: If a value is entered in the Max samples field on the General tab in the Point Properties dialog box, the lower number ( or MAX_TREND_BUF) determines the ceiling of buffered values.
Value Number (of point values).
Default Value 200