Overview

Standard values are used in scheduling, capacity planning and costing to determine dates, capacity requirements and costs (see also Integration of CAPP Standard Values Calculation in Production Planning and Control ). They generally have the dimension "time". However, in the PP system you can calculate standard values not only with the dimension "time" but also with any dimension in the SI system. This can be useful, for example, for calculating the necessary volume of an annealing furnace.

Standard values can be determined in several ways:

In contrast to the procedures listed above, CAPP is a mathematical procedure using formulas and methods.

The following graphic displays the basic data, which CAPP uses in calculating standard values. The calculation details can also be generated.

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You can trigger the calculation of one or more standard values for an operation when you are within the create or change transaction for routings or when you are creating a production order. During this calculation both the technical data and one or more processes at the work center where the operation is executed are taken into account.

Standard values are calculated using methods that are allocated to the process(es). The method is used to specify the standard value to be calculated. When calculating methods the system accesses formulas that can in turn access other formulas and/or tables.

The following graphic displays the structure of the standard values calculation; it shows the CAPP elements and their hierarchical arrangement.

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