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【Planning】R3 - 关于Lot size

原创 ERP 作者：edison_tc 时间：2016-12-28 19:21:26 0 删除 编辑

Purpose

Lot size是planning过程中另一非常重要且必须的步骤。其实在R3与APO中，处理类似，无论是static lot-size，periodic lot-size还是optimzed lot-size；另外，lot-size同MRP type的联系也是需要考虑。


Content:


Case 1 - static and period lot-size(daily)


新建一个lot size

Machine generated alternative text:
Change View 揂lRP Lot-Sizing Procedures? Details
at? NewEntries f2 
Lot size Ri?lot-for-lot, no split qta - long terrr4
E Last lot exact
Horizon lot-for-lot ord qty
Lot Size in Short-Term Horizon
Lot-sizing procedure Static lot-sizing procedure No. of periods
Lot-size indicator i1 Lot-for-lot order quantity
Max. Stock Level
Scheduling Requirements date := delivery date
Date Interpretation
Overlapping 慐 Splitting quota
End of Short-TerrrijStart of Long-Term Horizon
Perlnd: LT Lot Size i1 Monthly Number of periods 3 ?
Lot Size in Long-Term Horizon
Long-Term LSP Period lot-sizing procedure No. of periods r?
Lot-Size Indicator Hf Daily lot size
Scheduling Requirements date := delivery date E Check Min. Loz Size
Date Interpretation E Check Max. Lot Size
Overlapping flSplitting quota
Lot Size: MtO Lot-for-lot order quantity


Short term (3个月内；由end of short-term/start of long-term horizon来定义)：按EX来


而long-term：按5天daily来 


先看一下MD04


Machine generated alternative text:
Date
82240153
6533
[j2ol6.O6.3O PlOrd.
2016.06.30 IndReq
2016.07.01 PlOrd.
2016.07.01 IndReq
2016.07.02 PlOrd.
2016.07.02 IndReq
2016.07.03 PlOrd.
2016.07.03 IndReq VSF
2016.07.04 PlOrd.
r
201407.04 Req
L. J
2016.07.05 PlOrd.
2016.07.05 IndReq
2016.07.06 PlOrd.
2016.07.06 IndReq
2016.07.07 PlOrd.
2016.07.07 IndReq
2016.07.08 PlOrd.
2016.07.08 IndReq VSF
2016.07.09 PlOrd.
2016.07.09 IndReq
2016.07.10 PlOrd.
2016.07.10 IndReq
72
72?
75
75?
74
74?
74
74?
75
75?
74
74?
74
74?
74
74?
75
75?
74
74?
74
74?
533 0 B726
461 0
536 0 B726
461 0
535 0 B726
461 0
535 0 B726aJ
461 0
536 0 B726
461 0
535 0 B726EJ
461 0
535 0 B726
461 0
535 0 B726
461 0
536 0 B726
461 0
535 0 B726
461 0
535 0 B726
461 0
Stock/Requirements List as of 16:09 hrs
Show Overview Tree & Q] 3 e 
jj Material ________ WHISPER PAD LN-XLN BSX7S MAXI AL UG
Plant MRP type PD Material Type FERT Unit CS
MRP ... MRP element data Reschedu[i... E.. Receipt/Reqmt Available Qty S... Su... A..
6118622168 / SDeb
VSF
6118622169f SDeb
?5F
6118622170/SDeb
VSF
6118622171/SDeb
6118622172/SDeb
VSF
6118622173f SDeb
?SF
6118622174f SDeb
?5F
6118622175f SDeb
?5F
6118568174/ SDeb
6118622176f SDeb
VSF
6118622177f SDeb
VSF


可以看出即使在3月后还是ex 


我们修改一下lot-size


Machine generated alternative text:
Material r8224o153 WHISPER PAD LN-XLN 8SX75 MAXI AL UGI
Plant 6533 MANDIDEEP CSC-PG HYGIENE & HC
General Data
Base Unitol Measure Case MRP group 4O?
Purchasing Group ABC Indicator H
Plant-sp.matl status Valid from
MRP procedure
MRP Type MRP
Reorder Point Planning time fence fl
Planning cycle MRP Controller [dd1
data lot-for-lot, no split qta - long term
Minimum Lot Size ? Maximum Lot Size

Run planning

Machine generated alternative text:
________ WHISPER PAD LN-XLN 8SX75 MAXI AL UG
PD MaterialType FERT Unit CS?
Date MRP ... MRP element data Rescheduli... E.. Receipt/Reqmt Available Qty
[j2016.0s.2e PlOrd. 6118622136/SDeb 74 74
2016.05.2e IndReq ?3F
2016.05.29 PlOrd. 6118622137/SDeb 73
2016.05.29 IndF 73?
2016.05.30 rd. 6118622138/SDeb 74
r
2016.05. 0 ndReq ?SF 74?
L J
2016.05. PlOrd. 6118622139/SDeb 73
2016.05.31 73?
2016.06.01 PlOrd. 363
2016.06.01 IndReq 73?
2016.06.02 IndReq ?SF 72?
2016.06.03 IndReq VSF 73?
2016.06.04 IndRe ?3F 72
2 . 6.05 IndReq VSF 73?
201. PlOrd.
2016.06.07 IndReq VSF 73?
2016.06.08 IndReq ?SF 72
2016.06.09 IndReq VSF 73?
2016.06.10 I 72?
2016.06.11 d. 6118622149/SDeb 362
2016.06.11 IndReq VS 73?
Material
Plant
82240153
6533
MRP type
74?
611862214 0/SDeb
?SF
6118 623b
VSF
S... Su...
O B726
00
73 0 B726
00
74 0 B726
00
73 0 B726
00
363 0 B726
290 0
218 0
145 0
73 0
00
362 0 B726
290 0
217 0
145 0
72 0
00
362 0 B726
289 0
I


可以看出：在3月内，都是EX，而在long term中，则按5天的daily进行。

 


Case 2 - period lot-size(planning calendar)

Lot size:

Machine generated alternative text:
Change View 揗RP Lot-Sizing Procedures? Details
? New Entries Lf . t 1I I1 
Lot size PK? PERIOD LOT SIZE ACC. TO PLNG CALENDAR
慙ast lot exact
Horizon lot-for-lot ord qty
Lot Size in Short-Term nri7nn ________
Lot-sizing procedure Period lot-sizing procedure No. of periods 1I 
Lot-size indicator Period lot size as in PPC planning calen
Max. Stock Level
Scheduling Requirements date := delivery date
Date Interpretation
Overlapping Splitting quota
End of Short-TernIStart of Long-Term Horizon 
Perlnd: LT Lot Size Initial value Number of periods
Lot Size in Long-Term Horizon
Long-Term LSP No. of periods


 

MD25 create new planning calendar

Machine generated alternative text:
Display Planning Calendar
?鐠 Periods
r ?--
Plant JO17 [jI ,PE GIRARDEAU-PLANT-PG PAPER
L J
Planning calendar ZT1 Edison AOV Test planning calendar 1
Global Dates
Valid From iO2/2Ol6 Minimum period O
Valid to h12/28/2O11 Actual period 366
Start of Period Not a Working Day
?) Do r
Q Following working day
O Previous working day
ONo new period
Calculation Rule for Determination of Period
Period: weekly
Periods begin on the following week days
Week day Week day
1 Monday
3 Wednesday
5 Friday

Machine generated alternative text:
Create Planning Calendan Periods
Plant 3O17i?PE GIRARDEAU-PLANT-PG PAPER
L__1 I
Ping calendar 慫n Edison AOV Test planning calendar 1
From date Period to Period Year Firmed
12)02/2016 12/04/2016 1 2016 u
12/05/2016 12/06/2016 2 2016 n
12/07/2016 12/08/2016 3 2016 fl
12/09/2016 12/11/2016 4 2016 n
12/12/2016 12/13/2016 5 2016 fl
12/14/2016 12/15/2016 6 2016 n
12/16/2016 12/18/2016 7 2016 n
12/19/2016 12/20/2016 8 2016 n
12/21/2016 12/22/2016 9 2016 n
12/23/2016 12/25/2016 10 2016 n
12/26/2016 12/27/2016 11 2016 n
12/28/2016 12/29/2016 12 2016 n
12/30/2016 01/01/2017 13 2016 n
01/02/2017 01/03/2017 1 2017 n
01/04/2017 01/05/2017 2 2017 n
01/06/2017 01/08/2017 3 2017 n
01/09/2017 01/10/2017 4 2017 n
01/11/2017 01/12/2017 5 2017 n
01/13/2017 01/15/2017 6 2017 fl
01/16/2017 01/17/2017 7 2017 n
01/18/2017 01/19/2017 8 2017 n
01/20/2017 01/22/2017 9 2017 n
01/23/2017 01/24/2017 10 2017 n
01/2512017 01126/2017 11 2017 fl


Material master

Machine generated alternative text:
[ 4j Change Material 84960004 (Finished product)
? 4AdditionalData 錙rg.LeveLs CheckScreen Data 8
Purchase order text
General Data ________
Base Unit of Measure [Ei1
Purchasing Group
PLant-sp.matl status
MRP procedure
MRP Type
Reorder Point
Planning cycle
Lot size data
Lot size
Minimum Lot Size
Fixed lot size
Ordering costs
Assembly scrap (%)
Rounding ProNe
I Inkk n? Mnn rn flrn
MRP1 MRP2 MRP3 MRP4 Fo...
Case MRP group
ABC Indicator
Valid from
Planning time fence
MRP Controller
Material
Plant
ri4960004
UO 17
?960002 follow upi
CAPE GIRARDEAU-PLANT-PG PAPER
MRP
LOT SIZE ACC. TO PLNG CALENDAR
Maximum Lot Size
Maximum stock level
Storage costs md.
Takt time
Rounding value


Machine generated alternative text:
Material 84960004 84960002 follow up Li
Plant U017 CAPE GIRARDEAU-PLANT-PG PAPER
Procurement
Procurement type X Batch entry
Special procurement Prod. stor. location
Quota arr. usage il Default supply area
Backflush H Storage bc. for EP
JIT delk,ery sched. Stock determ. group
Co-product [ Joint production
Bulk Material Vend, material class
Scheduling ______
In-house production days Planned Deliv. Time 1 days
GR Processing Time days Planning calendar
SchedMargin key
Net requirements calculation


Now MD04

Machine generated alternative text:
Stock/Requirements List as of 23:57 lits
ShowOveMewTree ?? L t e51 
[JMateriaI ?84960004 S4960002 follow up
Plant IuOl7j MRP type 慖F Material Type FERT Unit
A.. Date MRP ... MRP element data Rescheduli... E.. ReceiptjReqmt Available Qty
[j12/27/2ol6 Stock
EJl2/27f2ol6 IndReq VSF 100? 100?
l2/28f20l6 IndReq VSF loo? 200?
l2/29f2Ol6IndReqVSF 100? 300?
12/30/2016 ndReq VSF 100? 400?
l2/3l/2Ol6IndReqVSF 100? 500?
0l/0lf20l7 IndReq ?SF 100? 600?
01/02/2017 IndReq ?SF 100? 700?
0l/03/2Ol7 IndReq ?5F 100? 800?
0l/04/20l7 IndReq ?SF 100? 900?
Ol/05/2Ol7 IndReq ?SF 100? 1,000?
0l/O6/2Ol7 IndReq ?SF 100? 1,100?
0l/07/2017 IndReq VSF 100? 1,200?


Machine generated alternative text:
4 December, 2016
Su Mo Tu We Th Fr Sa
27 28 29 30 1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27(j[)29 30 31
1234567

Run planning

Machine generated alternative text:
Planning Result: Individual Lines
t2 Firm date D Procurement proposal D Production order
[p] Material Num 84960004 84960002 follow up _______
Plant uoi1 MRP Type PD MaterialType FERT? Base Unit 鑙 j_____
[! A.. Date MRP ... MRP element data Rescheduli... E.. Rec./reqd cjty Avail, quantity
12, 27/2016 Stock J
12/27/2O16 IndReq VS? 100? 100?
l2/28/2Ol6 IndReq VS? 100? 200?
12/29/2016 PlOrd. 000l27247/5tck ,12/27/201650 100 100?
12/29/2016 PlOrd. 1000127248/StckI 12/28/201650 200 100
l2/29/20l6 IndReq VS? 100? 0
l2/30/20l6 PlOrd. 1000127249/Stck 50 300 300
l2/30/20l6 IndReq VS? 100? 200
l2/3l/20l6 IndReq VS? 100? 100
0l/0l/20l7 IndReq VS? 100? 0
01/02/2017 PlOrd. 1000127250/Stck 50 200 200
0l/02/20l7 IndReq VS? 100? 100
0l/03/20l7 IndReq VS? 100? 0
01/04/2017 PlOrd. 1000127251/Stck 50 200 200
01/04/2017 IndReq VS? 100? 100
01/05/2017 IndReq VS? 100? 0
01/06/2017 PlOrd. 1000127252/Stek 50 200 200
01/06/2017 IndReq VS? 100? 100
01/07/2017 IndReq VS? 100? 0

今天是12/28，因为in-house time是1天，所以最近的PL应该是12/29;

  • 所以，在12/29处有2个PL，一个是reschedule in为12/27；一个是为12/28的(for 12/28 + 12/29)
  • 然后从12/30开始就按planning calendar开始了。



   如果PK：

Machine generated alternative text:
ts? i抏rrormance t&ssLstanz r L_J
Change View 揗RP Lot-Sizing Procedures ? Details 
W62 NewEntries [j 
Scheduling for period lot sizes in short-term area
Lot size W PERIOD LOT SIZE ACC. TO PLNG CALENDAR
H Last lot exact This indicator defines the time in the period the system is to create the availability date or the
start date for the lot for period lot-sizing procedures.
Horizon lot-for-lot ord qty . .. . . . . . .
The availability date is the date on which the material, including the goods receipt processing
time, is available again. In the MRP list, the availability date is equal to the MRP date.
Lot Size in Short-Term Horizon
Lot-sizing procedure Period lot-sizing procedure No. of periods In in-house production. the start date is the order start date, in external procurement the start
date is the release date.
Lot-size indicator Rl Period lot size as in PPC planning calen
Max. Stock Level __________________________________ The following procedures exist:
Scheduling Cjiod start := start and period ejj ?,
. . Availability date equal to requirement date
Date Interpretation
Overlapping flSplitting quo ? Availability date at period start
End of Short-TerrrijStart of Long-Term Horizon ? Availability date at period end
Perlnd: LT Lot Size 慖nitial value Number of p .
. Start date at period start
Lot Size ? Long-Term Horizon ? Planned order start date at period start and availability date at period end
Long-Term LSP No. of periods
. . With this setting. the in-house processing time in the material master record is
Lot-Size Indicator ignored.
Scheduling Requirements date delivery date Check Min. L
Date Interpretation flCheck Max. Note
Overlapping Splitting quo
The following is valid in all cases:
If the start date lies in the past. the system switches to forward scheduling. The following
Lot Size: MtO Lot-for-lot order quantity example illustrates how the system procedes:
The period start is Monday and the period end is Friday. The planned delivery time is 8 days.
The indicator for determining the date is set to. 揳vailability date at period end?
Today is Monday. a requirement is planned on Wednesday. The system has to schedule
forwards. As the system works using date determination, today抯 date is not selected as the
start date. Instead, the system determines the next period end, and uses backward
scheduling to calculate a start date that does not lie in the past. This means that the end
date was planned for the Friday of next Week.


    新的planning结果：

Machine generated alternative text:
Planning Result: Individual Lines
6? Firm date D Procurement proposal D Production order
[p] Material Num ;49600O4 496OOO2 follow up
Plant UOl7 MRP Type Material Type ?ERT1 Base Unit
A.. Date MRP ... MRP element data ReschedulL. E.. Rec./reqd qty Avail, quantity
l2/28/20l6 Stock O
l2/27/20l6 IndReq VS? 100? 100?
l2/28/20l6 IndReq VS? 100? 200?
l2/29/2Ol6 IndReq VS? loo? 300?
l2/30/20l6 IndReq VS? 100? 400?
l2/31/2Ol6 IndReq VS? 100? 500?
01/01/2017 PlOrd. 1000127254/Stck 12/27/201650 100 400?
0l/Ol/20l7 PlOrd. 1000127255/Stck 12/29/201650 200 200?
0l/0l/20l7 PlOrd. 1000127256/Stck 50 300 100
0l/0l/20l7 IndReq VS? 100? 0
0l/O2/20l7 IndReq VS? 100? 100?
0l/03/20l7 PlOrd. 1000127257/Stck 50 200 100
JO1/03/2O17 IndReq VS? 100? 0
01/04/2017 IndReq VS? 100? 100?
01/05/2017 PlOrd. 1000127258/Stck 50 200 100
01/05/2017 IndReq VS? 100? 0
01/06/2017 IndReq VS? 100? 100?
01/07/2017 IndReq VS? 100? 200?
01/08/2017 PlOrd. 1000127259/Stck 50 200 0

Machine generated alternative text:
rdy
Planned order
Pind order 1000127254 Order type Stck Make-to-stock Proc. type E E
r
Order qty 1001 h01/01f2017 AccAssgnTy
L _______ _____________
12/30/201
? Conversion
Scrap
Prod.plant Iuol7J Pind open. 12/3O/2016 Fixed
Stor. Loc. GR ProcTme Foc. expi.
BOMexpI.no 1
Version


  • 因为最近的一期是周五12/30，而结束日是01/01；所以在01/01处有2个PL for前面2个period;
  • 另外可以发现这个start为12/30即period的start


  如果PK跨2个period，如:

Machine generated alternative text:
Lot size
[JLast lot exact
Horizon lot-for-lot ord qty
nt cn抧 in chnrt-Thrm Horizon
it of Long-Term Horiz
Initial value
PR PERIOD LOT SEE ACC. TO FLNG CALENDAR
E
j Period lot-sizing procedure
Period lot size as in PPC planning calen
Period start
Number of periods for the short-term area
The requirements from this number of periods are grouped together into one lot size
Only valid for processing period lot sizes.


再run planning

Machine generated alternative text:
Planning Result: In di vidual Lines
? Firm date D Procurement proposal LI Production order
[pj Material Num 慿4960004 4960002 follow up
Plant 慤0171 MRP Type 慞D Material Type FERT Base Unit _________________________I
[t A.. Date MRP ... MRP element data Rescheduli... E.. Rec.Jreqd qty Avail, quantity
12/28/2016 Stock O
12/27/2O16 IndReq VSI 100? 100?
12/28/2O16 IndReq VSI 100? 200?
l2/29/20l6 IndReq VSI 100? 300?
12/30/2016 IndReq VSI 100? 400?
l2/3l/2Ol6 IndReq VSI 100? 500?
0l/0l/2Ol7 IndReq VSI 100? 600?
01/02/2017 IndReq VSI 100? 700?
0l/03/20l7 PlOrd. 1000127260/Stc]c 12/29/201650 300 400?
0l/03/2Ol7 PlOrd. 1000127261/Stck 50 500 100
O1/O3/2O17 IndReq VSI 100? 0
01/04/2017 IndReq VSI 100? 100?
01/05/2017 IndReq VSI 100? 200?
01/06/2017 IndReq VSI 100? 300?
01/07/2017 IndReq VSI 100? 400?
01/08/2017 PlOrd. 1000127262/Stck 50 400 0

Machine generated alternative text:
Page
Planned order
Pind order 1000127260 Order tvo? Stck, Make-to-stock Proc. type E E
Order qty dt??finish 01f03/2017J7?t.4ccAssgnTy
Scrap 
Prod.plant U0171 Pind open. 12/30/2016 IElRxed
Stor. Loc. I GR ProcTme Fix. expi.
BOMexpl.no Version Cap. disp. [Jj[J

因为根据schedule，都是要从12/29才有意义，所以

Machine generated alternative text:
12/28/2016 12/29/2016 12 2016
12/30/2016 :01/01/2017 LJ 13 2016
01/02/2017 01/03/2017 1 2017
01/04/2017 01/05/2017 2 2017
nl /A?1 7 Al 1n01)nl 7 )AI 7

正好是cover 2 period


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