IEC 81346-1:2009, published jointly by IEC and ISO, establishes general principles for the structuring of systems including structuring of the information about systems. Based on these principles, rules and guidance are given for the formulation of unambiguous reference designations for objects in any system. The reference designation identifies objects for the purpose of creation and retrieval of information about an object, and where realized about its corresponding component. This edition includes the following substantial changes with respect to the previous one: – a new introductory clause providing a description and explanation to the concepts used elsewhere in the publication; – a more comprehensive description of the structuring principles and rules for structuring are provided; – “other aspects” are introduced, and the prefix sign # is assigned to these aspects; – the concept of reference designation group has been deleted; – the specific term “transition” has been avoided and been replaced by an improved textual description of this phenomenon in annex D; – a new clause about labelling is introduced; – the old annexes have been removed with the exception of the annex showing an example of the application of reference designations within a system; – a new annex explaining the manipulation of objects is introduced; – 4 new annexes are introduced as rearrangement of detailed examples or explanatory information. It has the status of a horizontal standard in accordance with \/2.<\/p>\n
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| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Figure 1 \u2013 International standards providing a consistent system for designation, documentation and presentation of information <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4 Concepts 4.1 Object Figure 2 \u2013 Illustration of an object <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.2 Aspect <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 4.3 Technical system Figure 3 \u2013 Aspects of an object <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 4.4 Structuring 4.5 Function 4.6 Products and components Figure 4 \u2013 Illustration of a function and its sub-functions <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 4.7 Location <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 4.8 Types, occurrences and individuals <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Figure 5 \u2013 Illustration of the concepts product, component, type, individual and occurrence Table 1 \u2013 Identification of types, occurrences and individuals within different contexts <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5 Structuring principles 5.1 General Figure 6 \u2013 Illustration of structural decomposition of an object from different aspects <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 5.2 Forming structures (i.e. types and occurrences) Figure 7 \u2013 Illustration of a function-oriented decomposition and product-oriented composition <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Figure 8 \u2013 Structure tree of object A (alternative 1) Figure 9 \u2013 Structure tree of object A (alternative 2) <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 10 \u2013 Constituents in one aspect of object type 1 Figure 11 \u2013 Constituents in one aspect of object type 2 Figure 12 \u2013 Constituents in one aspect of object type 5 <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 5.3 Function-oriented structure Figure 13 \u2013 Structure tree of object type 1 <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 5.4 Product-oriented structure Figure 14 \u2013 Illustration of a function-oriented structure <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 5.5 Location-oriented structure Figure 15 \u2013 Illustration of a product-oriented structure <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 5.6 Structures based on \u201cother aspects\u201d Figure 16 \u2013 Illustration of a location-oriented structure <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 5.7 Structures based on more than one aspect Figure 17 \u2013 Example of the use of \u201cother aspect\u201d Figure 18 \u2013 Illustration of an object accessible from three aspects, and where these aspects are used also for internal structuring <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 6 Construction of reference designations 6.1 General 6.2 Format of reference designations Figure 19 \u2013 Illustration of an object identified by means of one aspect and with sub-objects identified by means of another aspect <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Figure 20 \u2013 Examples of single-level reference designations Figure 21 \u2013 Relation between a multi-level reference designation and its single-level reference designations <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | 6.3 Different structures within the same aspect Figure 22 \u2013 Examples of multi-level reference designations with multiple prefix signs <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 7 Reference designation set Figure 23 \u2013 Example of reference designation sets <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 8 Designation of locations 8.1 General 8.2 Assemblies <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Figure 24 \u2013 Example of designation of mounting planes inside a factory build assembly <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 9 Presentation of reference designations 9.1 Reference designations Figure 25 \u2013 Examples of designation of locations inside a factory build assembly <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 9.2 Reference designations set Figure 26 \u2013 Examples of presentations of multi-level reference designations <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | 9.3 Presentation of identifiers for the top-node Figure 27 \u2013 Presentation of reference designations of a reference designation set Figure 28 \u2013 Different objects on a site identified with top node identifiers <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | 10 Labelling Figure 29 \u2013 The common initial portion of reference designations Figure 30 \u2013 Labelling of reference designations <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Annex\u00a0A (informative) Historical background Figure A.1 \u2013 Scope of reference designation standards <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | Annex\u00a0B (informative) Establishment and life cycle of objects Figure B.1 \u2013 Development situations of an object <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | Figure B.2 \u2013 The object\u2019s life cycle <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Annex\u00a0C (informative) Manipulation of objects <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Figure C.1 \u2013 Integration of external information by copying <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | Figure C.2 \u2013 Integration of an external object by referencing Figure C.3 \u2013 Three independently defined objects <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | Figure C.4 \u2013 Three separate objects with mutual relations Figure C.5 \u2013 The three objects are merged into one <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | Figure C.6 \u2013 Overview of the process system <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | Figure C.7 \u2013 Tree-like structures of the technical system <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | Figure C.8 \u2013 Completed structures of the technical system Figure C.9 \u2013 Structures with designated sub-objects <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | Figure C.10 \u2013 Structures with some merged-and shared objects Table C.1 \u2013 Possible reference designation sets <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | Figure C.11 \u2013 Relations expressed by reference designation sets in which both designations are unambiguous Figure C.12 \u2013 Relations expressed by reference designation sets in which one designation is ambiguous <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | Figure C.13 \u2013 Situations in the beginning of an object\u2019s life cycle accessible from three aspects <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | Figure C.14 \u2013 Situations in the beginning of the life cycle of closely related objects, each accessible from one aspect <\/td>\n<\/tr>\n | ||||||
| 67<\/td>\n | Annex\u00a0D (informative) Interpretation of reference designations using different aspects Figure D.1 \u2013 Shift from function to product aspect Figure D.2 \u2013 Shift from product to function aspect <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | Figure D.3 \u2013 Shift from product to location aspect Figure D.4 \u2013 Shift from location to product aspect <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | Figure D.5 \u2013 Shift from function to location aspect Figure D.6 \u2013 Shift from location to function aspect <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | Annex\u00a0E (normative) Object represented with several top nodes in an aspect Figure E.1 \u2013 Object represented with several independent top nodes in one aspect <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | Figure E.2 \u2013 Example of multi-level reference designations using different aspects of an object with several independent top nodes in one aspect <\/td>\n<\/tr>\n | ||||||
| 72<\/td>\n | Annex\u00a0F (informative) Examples of multiple structures based on the same aspect Figure F.1 \u2013 Illustration of the concept of additional functional views of an industrial process plant <\/td>\n<\/tr>\n | ||||||
| 73<\/td>\n | Figure F.2 \u2013 Location-oriented structure of a plant Figure F.3 \u2013 Location-oriented structure within an assembly unit <\/td>\n<\/tr>\n | ||||||
| 74<\/td>\n | Figure F.4 \u2013 Location-oriented structures of the plant <\/td>\n<\/tr>\n | ||||||
| 75<\/td>\n | Figure F.5 \u2013 Example of additional product-oriented structures <\/td>\n<\/tr>\n | ||||||
| 76<\/td>\n | Annex\u00a0G (informative) Example of structures and reference designations Figure G.1 \u2013 Function-oriented structure of object type 1 Figure G.2 \u2013 Function-oriented structure of object type 2 Figure G.3 \u2013 Function-oriented structure of object type 5 <\/td>\n<\/tr>\n | ||||||
| 77<\/td>\n | Figure G.4 \u2013 Concatenated function-oriented structure tree of object type A <\/td>\n<\/tr>\n | ||||||
| 78<\/td>\n | Annex\u00a0H (informative) Example of reference designations within a system Figure H.1 \u2013 Process flow diagram for a material handling plant <\/td>\n<\/tr>\n | ||||||
| 79<\/td>\n | Figure H.2 \u2013 Overview diagram of part of the process system (=V1) and part of the power supply system (=G1) <\/td>\n<\/tr>\n | ||||||
| 80<\/td>\n | Figure H.3 \u2013 Structure tree for parts of the material handling plant <\/td>\n<\/tr>\n | ||||||
| 81<\/td>\n | Figure H.4 \u2013 Layout drawing of the components of the MCC =G1=W1 <\/td>\n<\/tr>\n | ||||||
| 82<\/td>\n | Figure H.5 \u2013 Layout drawing of the locations of the MCC =G1=W1 Figure H.6 \u2013 Motor starter <\/td>\n<\/tr>\n | ||||||
| 83<\/td>\n | Figure H.7 \u2013 Product- and location-oriented structure trees for the MCC <\/td>\n<\/tr>\n | ||||||
| 84<\/td>\n | Table H.1 \u2013 Reference designation set for the constituents of the products MCC and motor starter <\/td>\n<\/tr>\n | ||||||
| 85<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Industrial systems, installations and equipment and industrial product. Structuring principles and reference designations – Basic rules<\/b><\/p>\n |