BECKHOFF BK5200 User Manual

0 (0)

DeviceNet Coupler

BK5200, BK5210, LC5200

Technical Documentation

Version 1.3 2006-10-24

Please note the following

Target group	This description is only intended for the use of trained specialists in control
	and automation engineering who are familiar with the applicable national
	standards.
Safety requirements	The responsible staff must ensure that the application or use of the
	products described satisfy all the requirements for safety, including all the
	relevant laws, regulations, guidelines and standards.

The documentation has been prepared with care. The products described are, however, constantly under development. For that reason the documentation is not in every case checked for consistency with performance data, standards or other characteristics, and does not represent an assurance of characteristics in the sense of § 459, Para. 2 of the German Civil Code. In the event that it contains technical or editorial errors, we retain the right to make alterations at any time and without warning. No claims for the modification of products that have already been supplied may be made on the basis of the data, diagrams and descriptions in this documentation.

©This manual is copyrighted. Any reproduction or third party use of this protected publication, whether in whole or in part, without the written permission of Elektro Beckhoff GmbH, is forbidden.

BK52x0

Table of contents

1. Foreword	4
Notes on the documentation	4
Liability Conditions	4
Delivery conditions	4
Copyright	4
Safety Instructions	5
State at Delivery	5
Description of safety symbols	5
2. Basic Principles	6
The Beckhoff Bus Terminal System	6
The interfaces	8
Power supply	8
Power contact feed points	9
Power contacts	9
Fieldbus connection	9
Configuration interface	9
K-Bus contacts	9
Electrical isolation	10
Operating modes of the Bus Coupler	11
Mechanical construction	12
Technical data	14
Peripheral data in the process image	16
Start-up procedure and Diagnostics	18
3. BK5200, BK5210, LC5200 DeviceNet	20
Introduction to the system	20
Configuring the Bus Coupler	22
Connector Pin assignment / DeviceNet connection	23
Data exchange	24
Light-emitting diodes	25
Vendor ID	26
DeviceNet Group	26
Bus cable: length, assignment	27
Electrical isolation	28
4. Appendix	29
Example: composition of a process image in the Bus Coupler	29
5. Support and Service	32
Beckhoff's branch offices and representatives	32
Beckhoff Headquarters	32

BK52x0

Foreword

Notes on the documentation

This description is only intended for the use of trained specialists in control and automation engineering who are familiar with the applicable national standards. It is essential that the following notes and explanations are followed when installing and commissioning these components.

Liability Conditions

The responsible staff must ensure that the application or use of the products described satisfy all the requirements for safety, including all the relevant laws, regulations, guidelines and standards.

The documentation has been prepared with care. The products described are, however, constantly under development. For that reason the documentation is not in every case checked for consistency with performance data, standards or other characteristics. None of the statements of this manual represents a guarantee (Garantie) in the meaning of § 443 BGB of the German Civil Code or a statement about the contractually expected fitness for a particular purpose in the meaning of § 434 par. 1 sentence 1 BGB. In the event that it contains technical or editorial errors, we retain the right to make alterations at any time and without warning. No claims for the modification of products that have already been supplied may be made on the basis of the data, diagrams and descriptions in this documentation.

Delivery conditions

In addition, the general delivery conditions of the company Beckhoff Automation GmbH apply.

BK52x0

Foreword

Safety Instructions

State at Delivery

All the components are supplied in particular hardware and software configurations appropriate for the application. Modifications to hardware or software configurations other than those described in the documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH.

Description of safety symbols

The following safety symbols are used in this documentation. They are intended to alert the reader to the associated safety instructions..

This symbol is intended to highlight risks for the life or health of personnel.

Danger

This symbol is intended to highlight risks for equipment, materials or the

environment.

Attention

This symbol indicates information that contributes to better understanding.

i Note

BK52x0

Basic Principles

	The Beckhoff Bus Terminal System
	The Bus Terminal system is the universal interface between a fieldbus
	system and the sensor / actuator level. A unit consists of a Bus Coupler as
Up to 64 Bus Terminals	the head station, and up to 64 electronic series terminals, the last one
	being an end terminal. For each technical signal form, terminals are
each having 2 I/O channels	available each having two I/O channels, and these can be mixed in any
for each signal form	order. All the terminal types have the same mechanical construction, so
	that difficulties of planning and design are minimised. The height and depth
	match the dimensions of compact terminal boxes.
	Fieldbus technology allows more compact forms of controller to be used.
	The I/O level does not have to be brought to the controller. The sensors
de-centralised wiring of the	and actuators can be wired de-centrally, using minimum cable lengths. You
I/O level	can locate the controller installation anywhere within the plant. The use of
	an Industrial PC as the controller means that the operating and observing
IPC as controller	element can be implemented in the controller’s hardware. The controller
	can therefore be located at an operating panel, in a control room, or at
	some similar place. The Bus Terminals form the de-centralised input/output
	level of the controller in the control cabinet and the subsidiary terminal
	boxes. The power sector of the plant is also controlled over the bus system
	in addition to the sensor/actuator level. The Bus Terminal replaces the
	conventional series terminal as the wiring level in the control cabinet. The
	control cabinet can have smaller dimensions.

Bus Couplers for all usual bus systems

The Beckhoff Bus Terminal system unites the advantages of a bus system with the possibilities of the compact series terminal. Bus Terminals can be driven within all the usual bus systems, thus reducing the controller parts count. The Bus Terminals then behave like conventional connections for that bus system. All the performance features of the particular bus system are supported.

Standard C - rail assembly	The easy, space-saving, assembly on a standard C-rail, and the direct
	wiring of actuators and sensors, without cross-connections between the
	terminals, standardises the installation. The consistent labelling scheme
	also contributes.
	The small physical size and the great flexibility of the Bus Terminal system
	allows it to be used wherever a series terminal is also used. Every type of
	connection, such as analog, digital, serial or the direct connection of
	sensors can be implemented.
Modularity	The modular assembly of the terminal strip with Bus Terminals of various
	functions limits the number of unused channels to a maximum of one per
	function. The presence of two channels in one terminal is the optimum
	compromise of unused channels and the cost of each channel. The
	possibility of electrical isolation through potential feed terminals also helps
	to keep the number of unused channels low.
Display of the channel state	The integrated LEDs show the state of each channel at a location close to
	the sensors and actuators.
K-Bus	The K-Bus is the data path within a terminal strip. The K-Bus is led through
	from the Bus Coupler through all the terminals via six contacts on the
End terminal	terminals‘ side walls. The end terminal terminates the K-Bus. The user
	does not have to learn anything about the function of the K-Bus or about
	the internal workings of the terminals and the Bus Coupler. Many software
	tools that can be supplied make project planning, configuration and
	operation easy.
6	BK52x0

Basic Principles

Potential feed terminals for The operating voltage is passed on to following terminals via three power electrically isolated groups contacts. You can divide the terminal strip into arbitrary isolated groups by means of potential feed terminals. The feed terminals play no part in the control of the terminals, and can be inserted at any locations within the

terminal strip.

Up to 64 terminals may be located in a terminal strip, including the potential feed terminals and end terminal.

The principle of the Bus Terminal

Bus couplers for various fieldbus systems

BK52x0

DeviceNet	Power supply	Potential
Bus Coupler for the		feed	Bus end
BK5200	Bus Coupler	terminal	terminal

K-Bus
DeviceNet
OVERFL
MS
RUN
BUS OFF
NS
CONNECT
I/O RUN
I/O ERR
BK5200
Power	Potential
contacts	isolation

Various Bus Couplers can be used to couple the electronic terminal strip quickly and easily to different fieldbus systems. It is also possible to convert to another fieldbus system at a later time. The Bus Coupler performs all the monitoring and control tasks that are necessary for operation of the connected Bus Terminals. The operation and configuration of the Bus Terminals is carried out exclusively by the Bus Coupler. Fieldbus, K-Bus and I/O level are electrically isolated.

If the exchange of data over the fieldbus fails for a time, counter states are retained, digital outputs are cleared, and analogue outputs take a value that can be separately configured for each output when commissioning.

Basic Principles

The DeviceNet Coupler

BK5200 / BK5210

The interfaces

A Bus Coupler has six different methods of connection. These interfaces are designed as plug connectors and as spring-loaded terminals.

DeviceNet connector

Configuration-

Interface

DeviceNet

OVERFL

MS RUN

BUS OFF

CONNECT

I/O RUN

I/O ERR

BK5200

Power LEDs

Bus Coupler / Power contacts

K-Bus

Power supply Bus Coupler 24 V DC / GND

Input

Power contacts

The DeviceNet coupler LC5200

BK5200, BK5210:

24 V DC to the topmost terminals “24 V” and “0 V”

The LC5200 Bus Coupler integrates the bus connection into the springloaded terminals.

	X001	002	left:
			fieldbus LEDs
Address			right:
Address	C+	C-	K-Bus LEDs
selector	C+	C-
selector			K-Bus
			CAN-H, CAN-L
	+	+
			V+
			Power supply for
			Bus Coupler
			and field level
			V-
	S	S

Screen

LC5200 Power contacts

Beckhoff

Power supply

The Bus Couplers require a 24 V DC supply for their operation. In the case of the BK52x0 Bus Couplers the connection is made by means of the upper spring-loaded terminals labelled “24 V” and “0 V”. This supply voltage feeds not only the Bus Coupler electronics via the K-Bus, but also the Bus Terminals. In the BK52x0 Bus Couplers the voltage supply for the bus coupler electronics and that of the K-bus are electrically isolated from the field level potentials.

BK52x0

Basic Principles

LC5200:

24V DC to the centre terminal pairs

The LC5200 Bus Coupler is supplied via the two central terminal pairs. The power contacts pass the supply voltage on to the field level.

	Power contact feed points
Bottom 3 terminal pairs for The bottom six connections with spring-loaded terminals can be used to
feed	feed the supply for the peripherals. The spring-loaded terminals are joined
	in pairs to a power contact. The feed for the power contacts has no
	connection to the voltage supply for the bus coupler (BK52x0). The design
Maximum 24 V	of the feed permits voltages of up to 24 V. The assignment in pairs and the
	electrical connection between feed terminal contacts allows the connection
	wires to be looped through to various terminal points. The current drawn
Maximum 10 A	from the power contact must not exceed 10 A for long periods. The current
	rating between two spring-loaded terminals is identical to that of the
	connecting wires.

Power contacts

On the right hand face of the Bus Coupler there are three spring contacts Spring contacts on the side for the power contact connections. The spring contacts are hidden in slots so that they can not be accidentally touched. By attaching a Bus Terminal the blade contacts on the left hand side of the Bus Terminal are connected to the spring contacts. The tongue and groove guides on the top and bottom of the Bus Coupler and of the Bus Terminals guarantees that the

power contacts mate securely.

	Fieldbus connection
BK5200, BK5210: 5 pin	The BK52x0 Bus Couplers have a recessed front surface on the left hand
open style connector	side. The DeviceNet connection plug can be inserted here. A full
	description of the fieldbus interfaces is found elsewhere in this manual.
LC5200: Bus connection	In the LC5200 Bus Coupler the bus is connected directly at the upper
via spring loaded terminals	terminal pair.

	Configuration interface
Serial interface under the	The BK52x0 Bus Couplers have an RS232 interface at the bottom of the
front cover	front face, whereas on the LC5200 it is located under the cover on the side.
	The miniature connector can be joined to a PC with the aid of a connecting
	cable and the KS2000 configuration software. The interface allows the
	analog channels to be configured and also permits firmware updating.
	The functionality of the configuration interface can also be reached via the
	fieldbus using the object attributes for the register communication.

K-Bus contacts

In order to connect the Bus Coupler and Bus Terminals the Bus Coupler 6 contacts on the side has gold contacts on the right hand side. When the Bus Terminals are pushed together the gold contacts automatically make the connection between the Bus Terminals. The voltage supply to the K-Bus electronics in the Bus Terminals and the data exchange between the Bus Coupler and the Bus Terminals is carried out by the K-Bus. A part of the data exchange takes place via a ring structure within the K-Bus. Opening the K-Bus, e.g. by pulling out one of the Bus Terminals, opens the ring. Data exchange is no longer possible. Special mechanisms nevertheless allow the Bus

Coupler to identify the location of the interruption and to report it.

BK52x0

Basic Principles

	Electrical isolation
BK5200, BK5210:	The Bus Couplers operate by means of three independent potential
3 potential groups:	groups. The supply voltage feeds the K-Bus electronics in the Bus Coupler
Fieldbus	and the K-Bus itself, which are electrically separate. The supply voltage is
K-Bus	also used to generate the operating voltage for the fieldbus.
Peripheral level
	Remark: All the Bus Terminals are electrically isolated from the K-Bus. The
	K-Bus is thus electrically isolated from everything else.

BK5200, BK5210: Structure of the potential levels in the Bus Terminal system

Bus Coupler

Bus Terminals

K-Bus

Fieldbus

Periphery level

24 V DC

LC5200: The LC5200 does not provide electrical isolation from the fieldbus and peripheral level. If the peripheral level nevertheless needs to have an electrically isolated implementation, this can easily be achieved through the use of isolating terminals (KL9xxx).

BK52x0

+ 22 hidden pages