Bthydplot Business Logic Tier (BLT)

The Batch Tracking Hydraulic Profile Plot (bthydplot) Business Logic Tier (BLT) is used to provide profile information to the AVEVA Enterprise SCADA Chart Control Configuration, but it can also be invoked through the AVEVA Enterprise SCADA Business Object Test Client. The bthydplot provides coordinate data for all types of trends that can be displayed on Hydraulic Profiles. The bthydplot BLT only returns a list of x-and y-axis coordinates. The type of trend that is returned depends on the value of the LineType argument.

The bthydplot BLT is called for each pen on the profile, so if you have six pens, for example, the BLT is called six times when the plot is redrawn. Each pen is then assigned to a different y-axis in the chart control. The BLT will, however, only return one x column and one y column.

The following table specifies the bthydplot BLT parameters.

For more information, see Understand the AVEVA Pipeline Operations for Liquids Hydraulic Profile.

For more information on Line Types, see Understand Hydraulic Profile line types