Beckhoff EL28 Series User Manual

Table of contents
EL28xx-xxxx 3Version: 2.2
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

Beckhoff EL28 Series Specifications

General

Brand	Beckhoff
Model	EL28 Series
Category	Touch terminals
Language	English