DIN EN 81714-2:2007-08

1 Scope
2 Normative references
3 Definitions
4 Markers
      4.1 Markers for reference points and connect nodes
      4.2 Markers for alignment of text
5 Reference symbols
6 Specifications for symbols including symbols for a reference
      library
      6.1 General
      6.2 Versions of graphical symbols
             6.2.1 General
             6.2.2 Examples of versions of graphical symbols
             6.2.3 Versions of composite graphical symbols
      6.3 Scaling
      6.4 Module sizes in reference libraries
      6.5 Use of layer technique
      6.6 Constructs used in the creation of graphical symbols
             6.6.1 General
             6.6.2 Spline
             6.6.3 Lines
             6.6.4 Grouping of lines
             6.6.5 Colours
             6.6.6 Fill area
      6.7 Text
             6.7.1 Default values
             6.7.2 Lettering
             6.7.3 Text font
             6.7.4 Set of characters
             6.7.5 Character justification
             6.7.6 Control functions in text strings
             6.7.7 General labels in graphical symbols
             6.7.8 Graphical symbols associated with data element
                      type definitions
      6.8 Connect nodes
             6.8.1 Connect node classification
             6.8.2 Position of schematic connect nodes
             6.8.3 Connect block
             6.8.4 Location and justification of the textfield for
                      the product terminal designation
             6.8.5 Location and justification of the textfield for
                      the function terminal designation
      6.9 Reference point of reference symbols
      6.10 Identification of schematic connect nodes
      6.11 Routing and placing of symbols
             6.11.1 General
             6.11.2 Embedded area of graphical symbols
             6.11.3 Directions for drawing connecting lines onto
                      schematic connect nodes
             6.11.4 Graphical swapping on schematic connect nodes
      6.12 Identifying block
             6.12.1 Openings
             6.12.2 Defaulted sequence and justification of textfields
      6.13 Descriptive data block
             6.13.1 Openings
             6.13.2 Defaulted sequence and justification of textfields
      6.14 Defaulted location of identifying and descriptive block
      6.15 Creation of reference symbols not shown in IEC 60617 and in
             ISO 146173
      6.16 Classification of graphical symbols
      6.17 Description of symbol functions
             6.17.1 Language versions of symbol function description
      6.18 Reference symbol name
             6.18.1 General
             6.18.2 Symbol name of reference symbols of IEC 60617 and
                      of ISO 14617
             6.18.3 Symbol name of reference symbols not included in
                      IEC 60617 and in ISO 14617
             6.18.4 Examples of symbol names
             6.18.5 Additional symbol names
Annex A (informative) Relations to IEC 60617 and ISO 14617
Annex B (informative) Interchange of diagrams and symbol libraries
Annex C (informative) Application reference model
Annex D (informative) Product identification
Annex E (normative) Data types, value formats, recommended lengths,
                    defaults
Annex F (normative) Requirements concerning lines
Annex G (normative) Requirements concerning text
Annex H (informative) Examples of pattern definitions
Annex J (normative) Library versions - Conformance requirements
Annex K (normative) Requirements concerning global definitions in a
                    library
Annex L (informative) Bibliography
Annex M (informative) Data element type specification
Annex ZA (normative) Normative references to international publications
                     with their corresponding European publications

Defines requirements for graphical symbols to be included in a reference symbol library in a computer sensible form, and requirements for their interchange among computer aided tools.