Procentec ProfiHub A5 Manuale utente

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 1 / 59

User Manual

ProfiHub A5/B5

5 Channel DP Spur and Repeater component

5 Isolated Channels.

Transparent for all PROFIBUS DP protocols.

RS 485 specifications for each channel.

Max. 12 Mbps.

Max. 31 devices per channel.

Max. 1200 m spur line length.

No limit in serial placement.

No address required.

Integrated termination facilities.

Configurable grounding system.

IP 65 classification (ProfiHub A5).

IP 20 classification (ProfiHub B5).

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Version 2.1.1 –June 2014 Page 2 / 59

Safety Guidelines

This manual contains notices which you should observe to ensure your own personal safety, as well

as to protect the product and connected equipment. These notices are highlighted in the manual by a

warning sign and are marked as follows according to the level of danger:

Draws your attention to important information on handling the product, a particular part of the

documentation or the correct functioning of the product.

Warning

This device and its components may only be used for the applications described in this manual and

only in connection with devices or components that comply with PROFIBUS and an RS 485 interface.

This product can only function correctly and safely if it is transported, stored, set up, installed,

operated and maintained as recommended.

Qualified Technicians

Only qualified technicians should be allowed to install and work with this equipment. Qualified

technicians are defined as persons who are authorized to commission, to ground, to tag circuits and

systems in accordance with established safety practices and standards. It is recommended that the

technicians carry a Certified PROFIBUS Installer or Certified PROFIBUS Engineer certificate.

Disclaimer of Liability

We have checked the contents of this manual as much as possible. Since deviations cannot be

precluded entirely, we cannot guarantee full agreement. However, the content in this manual is

reviewed regularly and any necessary corrections included in subsequent editions. Suggestions for

improvement are welcomed.

transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or

otherwise, without the prior written permission of the publisher.

PROCENTEC

Klopperman 16

2292 JD WATERINGEN

The Netherlands

Tel.: +31-(0)174-671800

Fax: +31-(0)174-671801

Email: info@procentec.com

Web: www.procentec.com

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 3 / 59

Important Information

Purpose of the Manual

This manual explains how to put the ProfiHub A5 and ProfiHub B5 into operation.

Recycling and Disposal

The parts of the ProfiHub can be recycled. For further information about environment-friendly recycling

and the procedure for disposing your old equipment, please contact:

PROCENTEC

Klopperman 16

2292 JD WATERINGEN

The Netherlands

Tel.: +31-(0)174-671800

Fax: +31-(0)174-671801

Email: info@procentec.com

Document Updates

You can obtain constantly updated information on PROCENTEC products on the Internet at

www.procentec.com

You can also contact PROCENTEC Customer Support:

- by phone at +31-(0)174-671800

- by fax at +31-(0)174-671801

- by email at sup[email protected]

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 4 / 59

Contents

1Product Description...................................................................................................................... 5

1.1 Product Features.................................................................................................................... 6

1.2 Application areas.................................................................................................................... 7

1.3 Additional Benefits ................................................................................................................. 7

1.4 Channel Structure .................................................................................................................. 8

1.5 Grounding System ................................................................................................................. 8

1.6 Cable lengths for PROFIBUS DP........................................................................................... 9

1.7 Cable types for PROFIBUS DP............................................................................................ 10

1.8 Status Display ...................................................................................................................... 11

1.9 Comparison table................................................................................................................. 12

2Installation Instructions ProfiHub A5 ....................................................................................... 26

2.1 Location................................................................................................................................ 26

2.2 Position................................................................................................................................. 26

2.3 Mounting............................................................................................................................... 26

2.4 Power Supply....................................................................................................................... 27

2.5 Backbone ............................................................................................................................. 28

2.6 Spur Segments..................................................................................................................... 29

2.7 Termination .......................................................................................................................... 30

2.8 Baudrate switch.................................................................................................................... 31

3Installation Instructions ProfiHub B5 ....................................................................................... 32

3.1 Location................................................................................................................................ 32

3.2 Position................................................................................................................................. 32

3.3 Mounting............................................................................................................................... 32

3.4 Power Supply....................................................................................................................... 32

3.5 Backbone ............................................................................................................................. 33

3.6 Spur Segments..................................................................................................................... 34

3.7 Termination .......................................................................................................................... 35

3.8 Baudrate switch.................................................................................................................... 36

4Technical Data ProfiHub A5....................................................................................................... 37

5Technical Data ProfiHub B5....................................................................................................... 39

6Sales offices and Distributors................................................................................................... 41

7Order codes................................................................................................................................. 41

8Glossary....................................................................................................................................... 47

9Certificates .................................................................................................................................. 50

10 Revision History.......................................................................................................................... 53

11 Next version ................................................................................................................................ 54

12 Notes............................................................................................................................................ 55

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 5 / 59

1 Product Description

ProfiHub A5 and B5 are advanced, flexible

and robust network components for

PROFIBUS DP installations, to implement

long multi-device spur lines and backbone

structures with star/tree segments.

PROFIBUS DP is a high speed communication

bus that has to comply with strict rules

concerning spur lines, because of possible

reflections that could lead to communication

disturbances. If spur lines or star segments are

required, costly investments in repeaters have

to be done.

Innovative components for such applications are

the ProfiHub A5 and B5. These are perfect

economic solutions to implement reliable spur

lines in high speed DP networks. They have the

functionality of 5 galvanic isolated transparent

repeaters. This allows network structures with

extended spur lines that individually can handle a

maximum of 31 devices and a length equal to the

main bus. The ProfiHub A5 and B5 refresh a

received message on one Channel and

transfer it to all the other Channels (chicken

foot topology).

Because the ProfiHub A5 and B5 create isolated

segments, the devices can now be removed and

added during operation. Also electrical bus

problems and EMC disturbances in a spur do not

spread to the other segments. The intelligent

logic and isolation circuits of the ProfiHubs do not

change the bit width. This means the ProfiHubs

do not have limitations in serial placement. The

logic also detects the transmission speed

automatically.

To assist the installation work, termination is

integrated and can be switched on/off. The

grounding concept is also selectable: direct or

capacitive grounding. The ProfiHubs are powered by a 10 to 32 DC Voltage (110/230V AC versions

are also available). For troubleshooting, maintenance and commissioning the ProfiHubs are equipped

with a display on the outside, which indicate the status of each Channel (Data and Error).

Fig. 1 - ProfiHub A5 (IP65)

Fig. 2 - ProfiHub B5 (IP20)

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Version 2.1.1 –June 2014 Page 6 / 59

1.1 Product Features

5 Galvanic isolated channels (repeater

segments).

Transparent for all PROFIBUS DP

protocols.

DP - RS 485 specifications for each

channel.

9,6 Kbps to 12 Mbps.

31 devices per channel.

1200 m spur line length (depends on

transmission speed).

No limit in serial placement or cascading of

ProfiHubs.

No address required.

Integrated termination facilities (switches).

Configurable grounding system (direct or capacitive).

IP 65 classification (ProfiHub A5).

IP 20 classification (ProfiHub B5).

Fig. 3 - Long spur lines to instruments and the possibility to remove/insert them during

operation. Short circuit protection on each spur line is automatically provided.

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 7 / 59

1.2 Application areas

Dynamic spur lines to actuators, flow meters and pH analyzers.

Removable drives and motors.

Pull/Plug motor control centers (drawers).

Roof mounted devices in tank farms.

Dirty and humid environments.

Barrier for non galvanic isolated equipment.

Large star/tree structured networks.

Outdoor applications with device and cable stress (ProfiHub A5).

1.3 Additional Benefits

Hot slave insertion and removal during operation.

Short circuit protection on each Channel.

Compact and robust construction.

Status and error display (per Channel).

Suitable for all DP cables.

Conveniently arranged networks.

Easy extendable installations.

Standard glands can be replaced with M12 (ProfiHub A5).

On-board DB9 female connector for maintenance activities (ProfiHub A5).

Cost Savings.

Fig. 4 - Because of the isolation and intelligence the ProfiHub provides, it can be used as

a barrier for electrically sensitive segments. This keeps the backbone and other

Channels clean.

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 8 / 59

1.4 Channel Structure

Every Channel is electrically isolated and internally connected to the transparent intelligent backbone.

The termination is switchable and powered by the ProfiHub. The shielding of the PROFIBUS cable can

be directly grounded or indirectly grounded (see the next paragraph).

1.5 Grounding System

The ProfiHubs can be grounded by 3 methods:

1) Direct grounding

2) Indirect grounding (through a capacitor)

3) Combination of direct and indirect.

In most cases it is recommended always to use Direct Grounding with the power supply and the

shielding of the PROFIBUS cables. If you do not want to ground all or some cables to the common

ground, the cable shielding should be connected to pin ‘I’. A capacitor with a parallel high value

resistor will separate the 2 potentials (Fig. 5).

If by accident on 1 channel the Direct Grounding is connected with the Indirect Grounding, the Direct

Grounding “wins”.

Fig. 5 - Channel structure

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 9 / 59

1.6 Cable lengths for PROFIBUS DP

The cables on the Channels and the Main-Channel should comply with the PROFIBUS DP cable

specifications for RS 485 (Fig. 6).

Fig. 6 - Cable lengths for PROFIBUS DP

ProfiHub A5/B5 User Manual

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Version 2.1.1 –June 2014 Page 10 / 59

1.7 Cable types for PROFIBUS DP

The cable type should comply with the PROFIBUS DP cable specifications for RS 485 (Fig. 7).

The ProfiHub A5 can handle cables based on multiple protection sheaths with a diameter between 6 to

12 mm (Fig. 8).

Parameter

Value

Wires

2 (twisted)

Impedance

135 .. 165 Ohm at 3 to 20 MHz

Capacity

< 30 pF/m

Loop resistance

< 110 Ohm/km

Wire diameter

> 0.64 mm

Wire area

> 0.32 mm2

FRNC cable

Shipboard cable

Festoon cable

Flexible cable

Food cable

Robust cable

Trailing cable

Hybrid cable

Fig. 8 - Cables with different protection sheaths.

Fig. 7 - PROFIBUS DP cable specifications

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