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How to use ISA95 part 3 for MES functional URS
| Attachment | Kind | Size |
|---|---|---|
DownloadPreview 2005-05-WBF_NA2005_0.doc | Word document | 1.74 MB |
DownloadPreview 2005-05-WBF_NA2005.ppt | PowerPoint presentation | 408.5 KB |
Shop floor activity execution control encompasses many management functionalities, addressing several types of manufacturing operations from the receipt of raw material to the shipping of finished goods, from production itself to equipment maintenance through inventory movements and material quality tests. These activities fall under different responsibilities, though they must operate collaboratively under the business management directions. When it comes to specifying such a global control/MES system, the user requirement specification (URS) may appear a difficult task, leading to confusing and complex documentation, and eventually project failure.
Since the ISA95 standard initial scope just covered B2M information flows between Production execution and Business systems, the SP95 committee had to pay attention to the execution layer functional duties. The first valuable contribution to sort the chaos within this large scope of functional requirements was the “11 functions” MESA model. Part 3 of the ISA95 standard defines a more elaborated functional model particularly suitable for URS development. This presentation describes a formal method for defining MES URS and system adequacy analysis based on ISA95. This method was used for very different projects such as: defining a global MES template for a major tire manufacturer; implementing a fully integrated Control/MES for an animal food company; specifying MES URS for a paper facility.
Intelligence and Transformation of Industrial Systems
