【PP MRP】MRP参数详解

一、RUN MRP

   T-code:MD01 MD02 

  

Processing key（处理代码） :
NETCH (净变化计划):即只计划上次计划以后计划相关内容发生变动的物料(注意,某些物料的参数发生变动了,系统也认为计划内容没有发生变动).

-->NETCH只对“上一次MRP运行后有物料移动或MRP参数改变或有需求变化”的物料运行MRP。

NETPL(计划周期内的净变化计划):即只在计划周期内执行净变化计划,周期外将不进行计划.

-->NEUPL就是对该工厂下所有的物料运行MRP。

NEUPL(重新计划):所有的物料不管有没有变动都再次计划. 如果没有Performance的考量,建议每次都选NEUPL(注意某些单项计划不能选择NEUPL),其次选NETCH.

-->NETPL是对“上一次MRP运行后有物料移动或MRP参数改变或在planning horizon内有需求变化”的物料运行MRP。

Create Purchase req.(创建采购申请):
1:计划结果直接生成采购申请(PR);
2:只在未清期间内生成采购申请(PR),未清期间外生成计划订单(Planned Order);
3:全部生成计划订单(Planned Order).

Delivery Schedule(交货计划表):如果MM模块启用了计划行(Schedule Line),则MRP结果如下处理:
1:不生成计划行(Schedule Line);
2:只有在未清期间内生成计划行(Schedule Line);
3:全部生成计划行(Schedule Line);

Create MRP List(创建MRP清单):设置MRP运算是否更新MRP清单(MRP List):
1:不生成/更新
2:根据例外信息决定
3:全部更新/生成MRP清单(MRP List)

Planning Mode(计划模式):
1:不清空原先的计划订单(Planned Order);
2:不清空,但是要重新展开他们的BOM和Routing(即按照最新的BOM和Routing);
3:全部清空未确认的计划订单(Planned Order),重新生成.

Scheduling(调度):
1:按物料主数据的提前期(Lead Time)进行排产
2:按工艺路线(Routing)进行排产

运行T.code MD21你可查看物料+工厂的NETCH和NETPL的标志。

planning horizon （计划区间）可以设置的，一个时间范围(workdays)
设置在： spro->mm->consumption-based planning->plant parameters->carry .....

看下图:

 二、MRP List

T-code:MD04(stock/requirement list)   MD05(MRP list)

MD04

Stock/Requirement list is a dynamic list,which shows current status of requirements & sources of  the material;So any changes in the procuments  or needs will be shown in this list.

MD05  

MRP list it is a static list,which shows the status of requirements & sources  after the MRP run.This list is not updated till the next MRP run.

• From the MRP list , choose  Goto>Stock/requirements list comparison > . 

• From the stock/requirement list , choose  Goto >MRP list comparison > .

   

Result

You now branch into the comparison screen for both lists.

The system displays the date of the last planning run in the Comparison screen area.

In the Period totals screen area, the system shows the planning result in the period totals display. There are two of each column, that is, one for each list type. They can be told apart optically.

By choosing  Stock/requirements list, you branch into the period totals display of the stock/requirements list and by choosing MRP list , you branch into the MRP list.

By double-clicking on a period, you call up the individual line display for the selected period in the lower part of the screen. The system lists all the MRP elements for this period individually.