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In order to represent machine failure times for the two mills, NC_301L and NC_302L, we click on the DT... button in the Location edit table shown below. This brings up another edit table for specifying a downtime based on machine usage. For more information about defining location downtimes, see Location Downtimes.
In the example above, we have defined failures to occur according to an exponential distribution with a mean of 30 minutes. When a machine fails, resource CellOp is required to service the machine.