Calculation stops when there is abnormal data, such as an overrange of an argument in the formula. If you suspect abnormal data, we recommend that you make a selection regarding error data processing (SKIP or ERROR) in SETUP mode. If you select SKIP, the abnormal data is ignored, and calculation continues. If you select ERROR, calculation stops when abnormal data occurs. With power integration, you need to take regenerated energy (minus) into account. With the span settings, take into account minus regenerated energy in the lower limit value.