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Beckhoff BK3120 User Manual

Beckhoff BK3120
90 pages
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Documentation
BK3xx0
Bus Coupler for PROFIBUS-DP
4.3.0
2019-04-03
Version:
Date:

Table of Contents

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Beckhoff BK3120 Specifications

General IconGeneral
Product TypeBus Coupler
Product NameBK3120
Protection ClassIP20
Dimensions100 x 75 x 22.5 mm
Weight200 g
Power Supply24 V DC
Current ConsumptionTypically 70 mA
Electrical Isolation500 V
Operating Temperature0 °C to +55 °C
Storage Temperature-25…+85 °C
Relative Humidity95 %, no condensation

Summary

Foreword

Safety Instructions

Outlines safety regulations, exclusion of liability, and describes instruction symbols used.

Mounting and Wiring

ESD Protection Instructions

Provides instructions to prevent damage from electrostatic discharge during handling.

Mounting

Describes the procedure for mounting Bus Couplers and terminals on a DIN rail.

Connection System

Explains different connection system options for Bus Terminals.

Wiring

Provides instructions and guidelines for wiring Bus Terminals.

Power Supply

Details the power supply requirements and connections for Bus Couplers and terminals.

PROFIBUS Cabling

Explains PROFIBUS connection types, pin assignments, and cabling requirements.

ATEX

ATEX Special Conditions (Standard Temperature Range)

Outlines special conditions for using components in potentially explosive areas.

ATEX Special Conditions (Extended Temperature Range)

Specifies conditions for ET components in potentially explosive areas.

Parameterization and Commissioning

Bus Coupler UserPrmData

Explains the configurable settings within the Bus Coupler's UserPrmData.

Configuration

Introduces the overall configuration process for Bus Couplers.

Configuration - CfgData

Explains how CfgData is generated from DP configuration tools.

Configuration of Coupler Modules

Details how to add DP modules for Bus Coupler functions.

Configuration of Complex Modules

Guides on adding complex terminals in the DP configuration tool.

Configuration of Digital Modules

Explains the configuration process for digital terminals.

Configuration with Siemens S7 Controller

Details the configuration process when using a Siemens S7 controller.

PROFIBUS DP Communication

Diagnostics and Error Handling

DP Diagnostics

Provides an overview of DP diagnostic data and its interpretation.

DP Diagnostic Data (DiagData)

Explains the structure and content of DP standard and device-specific diagnostic data.

Errors during DP Start-up

Lists and explains potential errors occurring during the DP start-up phase.

Errors when checking CfgData

Details errors related to checking the CfgData integrity and content.

Extended Functions

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