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Beckhoff EL28 Series User Manual

Beckhoff EL28 Series
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Documentation
EL28xx-xxxx
Digital HD Output Terminals
2.2
2019-01-03
Version:
Date:

Table of Contents

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Beckhoff EL28 Series Specifications

General IconGeneral
Relative humidity95 %, no condensation
Protection classIP20
Electrical isolation500 V
Storage temperature85 °C
Number of channels8

Summary

Foreword

Product overview: EtherCAT digital HD output terminals

Overview of EtherCAT digital HD output terminals, their types, and specifications.

Notes on the documentation

Guidance for users regarding the documentation's intended audience, disclaimers, and trademarks.

Documentation issue status

Details changes and updates made to document versions.

Version identification of EtherCAT devices

Explains the 14-digit designation system for Beckhoff EtherCAT devices.

Non-reactive Bus Terminals

Defines non-reactive terminals and lists terminals with their hardware versions.

Product overview

EL2808

Introduction to the EL2808 EtherCAT terminal, its features, and basic specifications.

EL2828

Introduction to the EL2828 EtherCAT terminal, its features, and basic specifications.

EL2809, EL2889

Introduction to EL2809 and EL2889 EtherCAT terminals, their features, and specifications.

EL2872, EL2872-0010

Introduction to EL2872 and EL2872-0010 EtherCAT terminals, features, and specifications.

EL2819

Introduction to the EL2819 EtherCAT terminal with diagnostics, its features, and specifications.

Overload protection

Explains terminal overload protection mechanisms, current limitation, and thermal switch-off.

Operating modes and settings

Discusses operating modes, parameterization, and process data for the EL2819 terminal.

Diagnostics per channel

Details channel-specific diagnostics like Open Load, Short Circuit, and Overtemperature.

Device diagnostics

Describes device-level diagnostics such as General Error, Overtemperature, Undervoltage, and Voltage Loss.

Settings via the CoE directory

Explains how to configure terminal settings using the CoE directory in TwinCAT.

Object description and parameterization

Introduces EtherCAT XML Device Description and parameterization methods.

Restore object

Describes restoring default parameters and backup objects to the terminal's delivery state.

Configuration data

Details safe state active and safe state value configurations for channels.

Command object

Explains command objects for DIG command and related status/response information.

Input data

Lists input data objects for diagnostics like Overtemperature, Open Load, Overcurrent, and Short Circuit.

Output data

Defines output data objects for DIG Outputs, including status and output states.

Standard objects

Covers standard objects like Device Type and Device Name.

Basics communication

EtherCAT basics

Refers to the EtherCAT System Documentation for fieldbus basics.

EtherCAT cabling – wire-bound

Details EtherCAT cabling requirements, cable length, connectors, and recommended cables.

General notes for setting the watchdog

Explains SM and PDI watchdog settings for terminal output safety and communication monitoring.

EtherCAT State Machine

Describes the EtherCAT State Machine (ESM) states and their control flow.

CoE Interface

Explains the CANopen over EtherCAT (CoE) interface for parameter management.

Distributed Clock

Details the characteristics and synchronization of distributed clocks in EtherCAT slaves.

Mounting and wiring

Instructions for ESD protection

Provides instructions for preventing electrostatic discharge damage to devices during handling.

Installation on mounting rails

Covers safe installation procedures for mounting terminals on DIN rails.

Installation instructions for enhanced mechanical load capacity

Details additional installation steps for terminals requiring enhanced mechanical load capacity.

Connection

Introduces connection options for the Bus Terminal system.

Connection system

Explains different connection options like standard and pluggable wiring.

Wiring

Describes how to connect solid or finely stranded cables to terminal points using spring force technology.

Shielding

Advises on connecting shielded, twisted-paired wires for sensors and actuators.

Installation positions

Discusses constraints and recommendations for terminal installation positions and ventilation.

Positioning of passive Terminals

Guides on correct positioning of passive terminals in the bus terminal block for optimal data transfer.

UL notice

Provides UL application and examination notices for Beckhoff EtherCAT modules.

ATEX - Special conditions (standard temperature range)

Outlines special conditions for using components in potentially explosive areas at standard temperatures.

ATEX - Special conditions (extended temperature range)

Outlines special conditions for using components in potentially explosive areas with extended temperature ranges.

ATEX Documentation

Directs users to additional documentation for ATEX terminal systems.

Commissioning

TwinCAT Quick Start

Introduces TwinCAT as a development environment for real-time control and configuration.

TwinCAT 2

Details the startup process and user interfaces for TwinCAT 2 System Manager.

TwinCAT 3

Describes the startup process and user interface for TwinCAT 3, integrating with Visual Studio.

TwinCAT Development Environment

Explains the TwinCAT Development Environment, its versions, and features.

Installation of the TwinCAT real-time driver

Guides on installing the Beckhoff real-time driver for IPC controllers.

Notes regarding ESI device description

Explains the importance and installation of ESI (EtherCAT Slave Information) files.

TwinCAT ESI Updater

Describes how to use the TwinCAT ESI Updater for managing device descriptions.

Distinction between Online and Offline

Differentiates between online (scanning existing hardware) and offline (manual configuration) methods.

OFFLINE configuration creation

Details the process of creating an EtherCAT device configuration offline.

ONLINE configuration creation

Explains how to detect and scan EtherCAT devices for online configuration.

EtherCAT subscriber configuration

Guides on configuring EtherCAT subscribers (terminals) within TwinCAT.

General Notes - EtherCAT Slave Application

Provides general notes on EtherCAT slave operation, diagnosis, and status within TwinCAT.

Appendix

EtherCAT AL Status Codes

Refers to EtherCAT system documentation for AL status codes.

Firmware compatibility

Details firmware compatibility between hardware and firmware versions for Beckhoff EtherCAT devices.

Firmware Update EL/ES/EM/EPxxxx

Describes the process for updating firmware on Beckhoff EtherCAT slaves.

Device description ESI file/XML

Explains the importance and update process for ESI device descriptions.

Firmware explanation

Explains how to determine firmware versions via laser inscription and System Manager.

Updating controller firmware *.efw

Guides on updating controller firmware files (*.efw) for EtherCAT slaves.

FPGA firmware *.rbf

Describes how to update FPGA firmware files (*.rbf) for EtherCAT communication.

Simultaneous updating of several EtherCAT devices

Explains how to update firmware and ESI for multiple devices simultaneously.

Firmware compatibility - passive terminals

Notes that passive terminals have no firmware to update.

Restoring the delivery state

Details how to restore terminal delivery state using CoE object Restore default parameters.

Support and Service

Provides contact information for Beckhoff support, branch offices, and service.

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