I.S. EN 61850-9-1:2003

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms
5 Principle of mapping to the serial unidirectional
  multidrop point to point link
  5.1 Communication stack
      5.1.1 Physical layer
      5.1.2 Link layer
      5.1.3 Network layer
      5.1.4 Transport layer
      5.1.5 Session layer
      5.1.6 Presentation layer
      5.1.7 Application layer
  5.2 Restrictions
6 Mapping of common types
  6.1 Object name
  6.2 Object reference
7 Mapping of the model for transmission of sampled
  values using mutlicast
  7.1 Mapping of the multicast sampled values services
  7.2 Mapping of the update of the sampled value buffer
  7.3 Additional definitions for the transmission of
      sampled analogue values
      7.3.1 Application layer functionality
      7.3.2 Presentation layer functionality
      7.3.3 Transport layer functionality
8 Mapping of the common data classes
8.1 Overview
8.2 Additional definitions for the mapping of the common
    data classes
Annex A (normative) Definition of data set instances and
         related multicast sampled value control instances
Annex B (informative) Calculation of required bandwidth
Annex C (informative) Definitions of logical node instance
        names and data names related to the data sets
Annex D (informative) Electronic transformers block diagram
        and configuration example

Describes the specific communication service mappings for the communication between bay and process level; specifies a mapping on a serial unidirectional multidrop point to point link in accordance with IEC 60044-8. Applies to the communication between merging units of electronic current or voltage-transformers and bay devices such as protection relays.