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:
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.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or
otherwise, without the prior written permission of the publisher.
Draws your attention to important information on handling the product, a particular part of the
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
You can obtain constantly updated information on PROCENTEC products on the Internet at
www.procentec.com
You can also contact PROCENTEC Customer Support:
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. 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.
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.
ProfiHub A5/B5 User Manual
No address required.
Integrated termination facilities (switches).
Configurable grounding system (direct or capacitive).
IP 65 classification (ProfiHub A5).
IP 20 classification (ProfiHub B5).
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
ProfiHub A5/B5 User Manual
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.
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”.
Saksa Automaatika OUT: +372 605 2526
Peterburi Tee 49 F: +372 605 2524
Tailinn E:
in
fo@saksa-automaatika.ee
EE-11415 Estonia I: www.saksa-automaatika.ee
FINLAND
Hantekno Oy T: +358 40 8222 014
Kalliotie 2 E:
in
fo@hantekno.com
04360 Tuusula I: www.hantekno.fi
Finland
FRANCE
AGILiCOM T: +33 247 76 10 20
Bâtiment B F: +33 247 37 95 54
1, rue de la Briaudière E:
jy
.bois@agilicom.fr
Z.A. La Châtaigneraie I: www.agilicom.fr
37510 BALLAN-MIRE
France
INDIA
UL Engineering Services & Software Pvt Ltd T: +91-202 696 0050
Nirman Classic, F: +91-202 696 2079
Katraj-Kondhwa Road, E:
di
leep.miskin@ulepl.com
Katraj, Pune-411046 I: www.ulepl.com
India
IRELAND
PROFIBUS Ireland T: +353-61-202107 or +35361240240
Automation Research Centre F: +353-61-202582
University of Limerick E:
in
fo@profibus.ie
National Technology Park, Plassey I: www.profibus.ie
Limerick
Ireland
ISRAEL
Instrumetrics Industrial Control T: +972-9-8357090
8 Hamlacha St. F: +972-9-8350619
New Industrial Zone E:
in
fo@instrumetrics-ic.co.il
Netanya, 42170 I: www.inst-ic.co.il
Israel
ITALY
PROCENTEC Italy T: +39 030 200 8610
Via Branze n. 43/45 F: +39 030 238 0059
25123 Brescia E:
w
Genoa FIELDBUS Competence Centre Srl T: +39 010 86 02 580
Via Greto di Cornigliano, 6R/38 F: +39 010 65 63 233
16152 Genova E:
p
rocentec@gfcc.it
Italy
W:
w
ww.gfcc.it
JAPAN
TJ Group T: +81-3-6450-3739
C/O Japanese PROFIBUS Organisation F: +81-3-6450-3739
West World Building 4F E:
in
fo@profibus.jp
3-1-6 Higashi-Gotanda,
Shinagawa-ku,
Tokyo, 141-0022
Japan
KOREA
Hi-PRO Tech. Co., Ltd. T: +82 82-31-216-2640
#2802, U-Tower, 1029 F: +82 82-31-216-2644
Youngduk-dong, Giheung-gu E:
c
hays@hiprotech.co.kr
Yongin-Si, Kyunggi-do, I: www.profibus.co.kr
446-908 Korea
Jr. Los Silicios 5409 F: +51 1528 0454
Los Olivos - L39 E:
in
fo@controlware.com.pe
Peru I: www.controlware.com.pe
POLAND
INTEX Sp. z o.o. T: +48 32 230 75 16
ul. Portowa 4 F: +48 32 230 75 17
44-102 Gliwice E:
in
tex@intex.com.pl
Poland I: www.intex.com.pl
ROMANIA
S.C. SVT Electronics S.R.L. T: +40 365 809 305
Brǎila 7F: +40 365 809 305
540331 Tg-Mure E:
s
ajgo.tibor@svt.ro
Romania I: www.svt.ro
SAUDI ARABIA
ASM Process Automation T: +966 2 691 2741
Al-Zahra Dist. – Attas st. F: +966 2 682 8943
cross section with helmy Kutby St. E:
in
fo@asmestablishment.com
Villa no.25 I: www.asmestablishment.com
Jeddah-21553
Saudi Arabia
SINGAPORE / SOUTH EAST ASIA
Allegro Electronics T: +65 62878063