Table Of Contents - Beckhoff EL28 Series Documentation

Table of contents

1 Foreword .................................................................................................................................................... 5
1.1 Product overview: EtherCAT digital HD output terminals .................................................................. 5
1.2 Notes on the documentation.............................................................................................................. 5
1.3 Safety instructions ............................................................................................................................. 7
1.4 Documentation issue status .............................................................................................................. 8
1.5 Version identification of EtherCAT devices ....................................................................................... 8
1.6 Non-reactive Bus Terminals ............................................................................................................ 13
2 Product overview..................................................................................................................................... 17
2.1 EL2808 ............................................................................................................................................ 17
2.1.1 Introduction ...................................................................................................................... 17
2.1.2 Technical data ................................................................................................................. 18
2.1.3 Pin assignment and LEDs ............................................................................................... 19
2.2 EL2828 ............................................................................................................................................ 20
2.2.1 Introduction ...................................................................................................................... 20
2.2.2 Technical data ................................................................................................................. 21
2.2.3 Pin assignment and LEDs ............................................................................................... 22
2.3 EL2809, EL2889 ............................................................................................................................. 23
2.3.1 Introduction ...................................................................................................................... 23
2.3.2 Technical data ................................................................................................................. 24
2.3.3 Pin assignment and LEDs ............................................................................................... 25
2.4 EL2872, EL2872-0010..................................................................................................................... 26
2.4.1 Introduction ...................................................................................................................... 26
2.4.2 Technical data ................................................................................................................. 27
2.4.3 Pin assignment and LEDs ............................................................................................... 28
2.5 EL2819 ............................................................................................................................................ 29
2.5.1 Introduction ...................................................................................................................... 29
2.5.2 Technical data ................................................................................................................. 30
2.5.3 Pin assignment and LEDs ............................................................................................... 31
2.5.4 Overload protection ......................................................................................................... 32
2.5.5 Operating modes and settings......................................................................................... 33
2.5.6 Object description and parameterization ......................................................................... 40
3 Basics communication ........................................................................................................................... 52
3.1 EtherCAT basics.............................................................................................................................. 52
3.2 EtherCAT cabling - wire-bound....................................................................................................... 52
3.3 General notes for setting the watchdog ........................................................................................... 53
3.4 EtherCAT State Machine ................................................................................................................. 55
3.5 CoE Interface................................................................................................................................... 57
3.6 Distributed Clock ............................................................................................................................. 62
4 Mounting and wiring................................................................................................................................ 63
4.1 Instructions for ESD protection ........................................................................................................ 63
4.2 Installation on mounting rails ........................................................................................................... 63
4.3 Installation instructions for enhanced mechanical load capacity ..................................................... 67
4.4 Connection ...................................................................................................................................... 67
EL28xx-xxxx Version: 2.2
Table of contents
3