Hi DilaniThank you for the feedback and clarification. I agree with you on the fact that Predicted Value at Maintenance can use Linear regression considering only a given number of measurements. My point was on the Due Date, referring to this topic. The system calculates a Due Date for next PM as well as the Planned Value. I don’t think we should consider that the same calculation method is used for Planned Value and Due Date. Regards Francis
Hi @Dilani May be you are right but I have done couple of scenario using Linear regression with tips provided but the Due date was never near IFS calculation. I sent you some scenario for you to confirm that your statement could be verified, I understand you said it would take time to check.Using the above formula, I was able to get the dates right so what to conclude? What to do if I am getting two different statements from IFS? I am running IFS Apps 10 Upd 11, may be what you are saying is in other IFS versions. Regards,Francis
Hi Indik,I struggled to understand the calculations, with help from an IFS employee, I found that:The calculation doesn’t use Linear regression All measurements are included in the calculation, unless a Calculation Start date is provided on the Test point.The formula to obtain Next PM Due Date = Last Measurement date + Duration for next plan (*)(*) Duration for next plan = Interval from Condition criteria / Average running hours per day (**)(**) Average running hours per day = (Last reading - First reading) / (Last measurement date - First measurement date)Hope this helps.Regards,Francis
Hi DilaniThank you, I am discussing with consulting team to get details on calculations.Regards,Francis
Hi Dilani,We have been trying to recalculate Due Dates using Linear regression but we still cannot get exact dates provided by IFS. I have used your hints from message above but my dates still do not match with IFS calculations.The equipment used has Planned Value based = NO. Are you able to review attached file and let me know if we are missing something in the manual calculation? Are there other parameters included in the calculation apart from measurements and date variations? Thank you,Francis
Hello @INIYBALI I might be mistaken but what you are trying to achieve cannot be done without a work order.If your condition based PM will generate work order in a week but you need to reserve items in advance, the only way I have found is to use the Maintenance planning Plan Analysis and manually generate the Work Order. The Maintenance Plan on PM Action in this case gives us a forecast that can be used to plan work but we are not waiting to reach the desired value (Km or Hours) in order to get a work order. We generate Work orders based on our planning window. Hope this helps. Francis
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