Maximum Capture Points

The maximum capture point maintains the maximum value encountered for a point. The maximum capture point can be either a signed integer, an unsigned integer or a floating point data type. The maximum capture point is determined by comparing the current source point value with the maximum value, and if the current value is greater than the maximum value, the current value is then stored as the maximum capture point. The maximum value is maintained in the maximum capture point until a Reset condition occurs.

A Reset condition occurs when the reset point is changed causing the maximum capture point to reset. The reset causes the maximum capture point to be reset to the configured init_value from derived_point.dat and, if the init_value is not present, then the maximum point has no value until a new data value is received. The reset point could be activated by an operator or automatically by the system.

Specifications:The maximum capture point is a derived point with the calculation_type set to 4.

More information

Derived point file (DERIVED_POINT).