Sepasoft MES Module Suite
Parallel Phases Recipe Structure
When two or more of the same type of phase are between an And Begin and And End, it is considered a parallel phases. This is not valid for a recipe because the phases will be fighting to set tag values to different values.
The following example is valid because it is at the Procedure level and even though both steps are Unit Procedures, they are not allocated to the same mixer at the same time.
Below is an example of an invalid recipe because if steps UP3 and UP4 are running at the same time they will each write to the same exposed tags.
Sepasoft MES Module Suite