Global Accumulation
The Global Accumulation constraint is used to specify a minimum or maximum constraint for any item in the model, on a period by period basis. This constraint can be used to limit such items as ore tonnes, total tonnes, drilling hours, acid consumption or contaminant levels.
Note:
The upper limit is a hard constraint Evolution must obey this constraint when generating a schedule. and the lower limit is a soft constraint Evolution attempts to satisfy this constraint when generating a schedule but it is not forced..
