WIP Scheduling : Rounding of Resource Usage is calculating unexpected WIP Job duration (Doc ID 1625228.1)

Last updated on SEPTEMBER 30, 2024

Applies to:

Goal

You have defined very precise timings for Operation Resource Usage (see below), so why are WIP Jobs not being scheduled as expected?
 
- Routing Setup

    Item: TEST_assembly01

    Operation:10 Department:MT_DEP1

    Operation Resource:
      Seq:10
      Resource:RES127
      UOM:sec (Second)
      Amount:0.5

- Profile Setup
   BOM: Time Unit of Measure Class = Time
   BOM: Hour UOM = hr
   WIP: Round Off Resource Usage to Minutes in Lead Time Calculations = No

- UOM Setup
   Class: Time/ Base Unit: Minutes

  Second (sec)
     1 sec = 0.0166666666 Minutes

   Hour(hr)
     1 hr = 60 Minutes

With the above settings, you expect that if you create a WIP job for 3840 qty, it should have a duration of 32 minutes. (0.5 Sec * 3840 = 1920 sec)

However in this case you will find that the WIP Job is actually scheduled longer than expected (33 minutes in this case).

WIP job12702
Assembly Item:TEST_assembly01

 Quantity:3840
 Start Date:01/27/2014 00:00:00
 Completion date:01/27/2014 00:33:00 (1980 sec)
 

Solution

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