FOREWORD
1 General
  1.1 Scope and general description
      1.1.1 Slot Communication Network Management (SCNM)
      1.1.2 EPL key features
      1.1.3 Integration
      1.1.4 Modular Machines
  1.2 Normative references
  1.3 Definitions and Abbreviations
      1.3.1 Definitions
      1.3.2 Abbreviations
2 Modelling
  2.1 Reference Model
      2.1.1 Application Layer
  2.2 Device Model
      2.2.1 General
      2.2.2 The Object Dictionary
  2.3 Communication Model
      2.3.1 Master/Slave relationship
      2.3.2 Client/Server relationship
      2.3.3 Producer/Consumer relationship - Push/Pull model
      2.3.4 Superimposing of Communication Relationships
3 Physical Layer
  3.1 Topology
      3.1.1 Hubs
      3.1.2 Switches
  3.2 Network Guidelines
  3.3 Connectors
      3.3.1 RJ-45
      3.3.2 M12
      3.3.3 Cross Over Pin Assignment
  3.4 Cables (recommendation)
4 Data Link Layer
  4.1 Modes of Operation
  4.2 EPL Mode
      4.2.1 Introduction
      4.2.2 EPL Nodes
      4.2.3 Services
      4.2.4 EPL Cycle
      4.2.5 Recognizing Active Nodes
  4.3 Basic Ethernet Mode
  4.4 MAC Addressing
      4.4.1 MAC Unicast
      4.4.2 MAC Multicast
      4.4.3 MAC Broadcast
  4.5 EPL Addressing
  4.6 Frame Structures
      4.6.1 Integration with Ethernet
  4.7 Error Handling Data Link Layer (DLL)
      4.7.1 Possible Error Sources and Error Symptoms
      4.7.2 Error Handling Table for CN
      4.7.3 Error Handling Table for MN
      4.7.4 Error Handling Registration
      4.7.5 Physical Layer Error Sources
      4.7.6 Rx MAC buffer overflow/Tx MAC buffer underrun
      4.7.7 Communication Error Symptoms detected by the MN
      4.7.8 Communication Error Symptoms detected by the CN
      4.7.9 Error Handling Parameters
5 Network/Transport Layer
  5.1 Internet Protocol (IP)
      5.1.1 IP Host Requirements
      5.1.2 IP Addressing
      5.1.3 Address Resolution
      5.1.4 Hostname
      5.1.5 Object description
  5.2 EPL conformant UDP/IP format
  5.3 EPL Sequence Layer
6 Application Layer
  6.1 Data Types and Encoding Rules
      6.1.1 General Description of Data Types and Encoding
             Rules
      6.1.2 Data Type Definitions
      6.1.3 Bit Sequences
      6.1.4 Basic Data Types
      6.1.5 Compound Data Types
      6.1.6 Extended Data Types
  6.2 Object Dictionary
  6.3 Service Data (SDO)
      6.3.1 UDP Layer
      6.3.2 SDO EPL Message Type
      6.3.3 SDO Sequence Layer
      6.3.4 SDO Command Layer
      6.3.5 SDO Embedded in PDO
      6.3.6 Object Description
  6.4 Process Data Object (PDO)
      6.4.1 PDO Mapping Version
      6.4.2 Container
      6.4.3 Multiplexed timeslots
      6.4.4 Transmit PDOs
      6.4.5 Receive PDOs
      6.4.6 PDO Error Handling
      6.4.7 Object Description
  6.5 Synchronisation (SYNC)
  6.6 Error Handling and Diagnostics
      6.6.1 Error Signalling
  6.7 Program Download
      6.7.1 EPL manager owned objects
  6.8 MN Configuration Manager
      6.8.1 DCF storage
      6.8.2 Concise configuration storage
      6.8.3 Check configuration process
      6.8.4 Request configuration
      6.8.5 "DEVICE DESCRIPTION FILE" storage
  6.9 Input from a Programmable Device
      6.9.1 Basics
      6.9.2 Dynamic index assignment
      6.9.3 Object dictionary entries
7 NMT
  7.1 NMT State Machine
      7.1.1 Overview
      7.1.2 Common Initialisation NMT State Machine
      7.1.3 MN NMT State Machine
      7.1.4 CN NMT State Machine
  7.2 NMT CN Objects
      7.2.1 Object 1000h: NMT_DeviceType_U32
      7.2.2 Object 1006[h]: NMTCycleTime_U32
      7.2.3 Object 1008[h]: NMT_ManufactDevName_VS
      7.2.4 Object 1009[h]: NMT_ManufactHwVers_VS
      7.2.5 Object 100Ah: NMT_ManufactSwVers_VS
      7.2.6 Object 1010h: NMT_StoreParam_REC
      7.2.7 Object 1011[h]: NMT_RestoreDefParam_REC
      7.2.8 Object 1016h: NMT_ConsumerHeartbeatTime_AU32
      7.2.9 Object 1018h: NMT_IdentityObject_REC
      7.2.10 Object 1030[h]- 103Fh: NMT_ItfGroup_Xh_REC
      7.2.11 Object 1F98[h]: NMT_CycleTiming_REC
      7.2.12 Object 1F99[h]: NMT_CnStateMachineTimeouts_REC
  7.3 NMT MN Objects
      7.3.1 NMT Master Start Up Behaviour
      7.3.2 NMT Master Network Node Lists
      7.3.3 Network Timing
      7.3.4 CN NMT State Surveillance
  7.4 Network Management Services
      7.4.1 NMT State Command Services
      7.4.2 NMT Managing Command Services
      7.4.3 NMT Response Services
      7.4.4 NMT Info Services
      7.4.5 NMT Guard Services
      7.4.6 Requesting NMT Services by an CN
  7.5 Boot-Up CN
  7.6 Boot-Up MN
      7.6.1 EPL Managing Node, Terms and Definitions
      7.6.2 Boot-Up Procedure
8 Routing
  8.1 Routing Type 1
      8.1.1 Core Tasks of an EPL Router
      8.1.2 Reference Model
      8.1.3 Data Link Layer
      8.1.4 Network Layer
      8.1.5 Security
      8.1.6 Additional Services of an EPL Router
      8.1.7 Object description
      8.1.8 EPL Router MIB
  8.2 Routing Type 2
9 Device Description
Annex 1 (informative) Summary Object Library
Annex 2 (informative) Constant Value Assignments
Annex 3 (informative) ETHERNET Powerlink Timing Examples
Annex 4 (informative) Router MIB example
Bibliography