How to set the preventive maintenance plan replacement?

How to set the preventive maintenance plan replacement?

On the maintenance plans of a preventive maintenance, it is possible to select the replacement criteria. The replacement criteria can be the following:
  1. None
  2. main (Multiplier)
  3. Replacement
The plan replacement rules are the following:
  1. All maintenance plans with a main replacement criteria must have at least an associated replacement maintenance plan.
  2. A main maintenance plan cannot be associated to another main maintenance plan.
  3. A maintenance plan must have a main plan associated.
  4. The replacement plans cannot have a recurrence defined.
  5. The several replacement plans for the main plan must have a different number of events.
  6. The number of events, on a replacement plan, must be higher than 0.
Examples
  1. Maintenance by recurrence with replacement plan, multiplier criterion: 
Preventive maintenance created on 07/04/2020, with the following maintenance plans.

Maintenance plan
Recurrence
Main Plan
Event
PM0001
Every month, on the 27th at 09:00


PM0003

PM0001
3
PM00012

PM0001
12

Event
Maintenance Plan
Expected Date
1
PM0001
27/04/2020 09:00
2
PM0001
27/05/2020 09:00
3
PM0003
27/06/2020 09:00
4
PM0001
27/07/2020 09:00
5
PM0001
27/08/2020 09:00
6
PM0003
27/09/2020 09:00
7
PM0001
27/10/2020 09:00
8
PM0001
27/11/2020 09:00
9
PM0003
27/12/2020 09:00
10
PM0001
27/01/2021 09:00
11
PM0001
27/02/2021 09:00
12
PM0012
27/03/2021 09:00
...
--
--

As this scenario shows, every 3 events (3, 6, 9, …) it is replaced by the plan PM00003 and every 12 by the PM00012 (12, 24, 48, …)
  1. Maintenance by recurrence with replacement plan, multiplier criterion and initial event:
Preventive maintenance created on 22/4/2020, with the following maintenance plans:

Maintenance Plan
Recurrence
Main Plan
Events
Starts at
PM00001
Every month, on the 27th at 09:00


2
PM00006

PM00001
62

EventMaintenance PlanExpected Date
1PM0000127/04/2020 09:00
2PM0000627/05/2020 09:00
3PM0000127/06/2020 09:00
4PM0000127/07/2020 09:00
5PM0000127/08/2020 09:00
6PM0000127/09/2020 09:00
7PM0000127/10/2020 09:00
8PM0000627/11/2020 09:00
9PM0000127/12/2020 09:00
10PM0000127/01/2021 09:00
11PM0000127/02/2021 09:00
12PM0000127/03/2021 09:00

In this case, the first replacement occurrence will occur on Monday, not Friday. That is to say, replacements are advanced compared to the normal plan.


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