When an optimiser point is displayed the value minutes to next switch is large.
The optimiser is unable to calculate minutes to next switch correctly.
The time schedule may be in a "Manual" condition
The optimiser point has been correctly crossed referenced to a time schedule.
However the time schedule has been crossed referenced to another point e.g. a programmable point either by the Low Action (LA) or High Action (HA) or the Holiday point where the holiday schedule is not a holiday point. Therefore the Optimiser is unable to calculate the next switch and applies a large value.
Consider putting the overrides or actions at a lower level in the software.
Instead of: Holiday > Overrides (e.g. Prg points) > Time Schedule > Optimiser > Plant Level
Consider: Holiday > Time Schedule > Optimiser > Overrides (e.g. Prg points) > Plant Level
Instead of: Overrides (e.g. Prg points) > HA or LA xref > Time Schedule > Optimiser > Plant Level
Consider: Time Schedule > Optimiser > Overrides (e.g. Prg points) > Plant Level