Using open/close relations

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Using open/close relations

You can use the Open/Close Relations table to construct constraints that control how many sites or work centers are open or closed based on the states of sites and work centers in the model. The table uses an If... Then structure to define this relationship.

For example, assume that if you have at least 2 work centers from a specific set open in period 2, you want to have exactly 2 of the sites from your set of manufacturers open in that same time period. The Open/Close Relations table record would look like:

Period Name	If Type	If Value	If Site	If Work Center	If Condition	Then Type	Then Value	Then Site	Then Work Center	Then Condition	If And Only If
Period_002	At Least	2		WorkCenters_B (All)	Open	Equals	2	MFGs (All)		Open	No

The If... Then clauses would read like the following:

In Period_002, if at least 2 of WorkCenters_B (All) is Open, then equals 2 of MFGs (All) is Open.

Last modified: Friday May 12, 2023

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