Helmholz PROFIBUS Compact Repeater User manual

PROFIBUS Compact Repeater
700-972-0RB12
Instruction Manual
Edition: 3 / 30.11.2009
Order number of instruction manual: 900-972-0RB12/en
Systeme Helmholz GmbH zHannberger Weg 2 zD-91091 Großenseebach
Phone: [phone] zFax: [phone] zE-mail: [e-mail] zInternet: www.helmholz.com

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and reproduction of this manual, or parts thereof. No part of this
manual may be reproduced, processed, copied, or transmitted in
any way whatsoever (photocopy, microfilm, or other method)
without the express written permission of Systeme Helmholz
GmbH, not even for use as training material, or using electronic
systems. All rights reserved in the case of a patent grant or
registration of a utility model or design.
Copyright ©2009 by
Systeme Helmholz GmbH
Hannberger Weg 2, 91091 Grossenseebach, Germany
Note:
We have checked the content of this manual for conformity with
the hardware and software described. Nevertheless, because
deviations cannot be ruled out, we cannot accept any liability for
complete conformity. The information in this manual is regularly
updated. When using purchased products, please heed the latest
version of the manual, which can be viewed in the Internet at
www.helmholz.de, from where it can also be downloaded.
Our customers are important to us. We are always glad to receive
suggestions for improvement and ideas.
STEP and SIMATIC are registered trademarks of SIEMENS AG

Revision history of this document:
Edition Date Revision
1 30.08.2007 First edition
1.1. 25.02.2008 Lower modifications
2 15.07.2009 Lower modifications
2.1 26.10.2009 New pictures and lower modifications
3 30.11.2009 Lower modifications

Contents
1Safety Information 6
1.1 General 6
1.2 Restriction of access 7
1.3 Target group for these instructions 7
1.4 Use as intended 7
1.5 Avoiding use not as intended! 7
1.6 Symbols used 7
2Installation and Mounting 8
3Short Description of the PROFIBUS Compact Repeater 9
3.1 Application and function description 9
3.2 The LED display and its meaning 9
3.3 Connections 10
3.4 Examples of circuits 11
4Technical Data 13
4.1 Operating conditions 13
4.2 Transmission rates 13
4.3 Accessories 14
5Further Documentation 15
PROFIBUS Compact Repeater 5

1Safety Information
The safety information indicates possible hazards and provides
information about how you can avoid hazardous situations.
Therefore please observe the safety information given for your
own and other people's safety.
1.1 General
The PROFIBUS Compact Repeater is only used as part of a complete
system.
!
The operator of a machine system is responsible for observing
all safety and accident prevention regulations applicable to the
application in question.
During configuration, safety and accident prevention rules
specific to the application must be observed.
Emergency OFF facilities according to EN 60204 / IEC 204
must remain active in all modes of the machine system. The system
must not enter an undefined restart.
Faults occurring in the machine system that can cause damage
to property or injury to persons must be prevented by additional
external equipment. Such equipment must also ensure entry into a safe
state in the event of a fault. Such equipment includes electromechanical
safety buttons, mechanical interlocks, etc. (see EN 954-1, risk
estimation).
Never execute or initiate safety-related functions using the
operator terminal.
Attention!
1. Use 60/75 °C copper wire only
2. Suitable for pollution degree 2 environment only.
3. Connect to 5 V bus only or Connect to 24 V bus only for devices
700-690-0CA12, 700-690-1BA12 and 700-690-1BB12.
4. See manual for all input and output ratings
5. Maximum surrounding air temperature is 60 °C
6 PROFIBUS Compact Repeater

1.2 Restriction of access
The PROFIBUS Compact Repeater is an open item of equipment
and must only be installed in electrical equipment rooms,
cabinets or housings. Access to the electrical equipment rooms,
barriers, or housings must only be possible using a tool or key and
only permitted to personnel having received instruction or
authorization. See also Chapter 2.
Only authorized persons
must have access to the
P
ROFIBUS Compact
R
epeaters!
1.3 Target group for these instructions
These instructions are addressed to project planners and installers
of PROFIBUS Compact Repeater.
It is intended as a reference work for project planners. It provides
the installing technician with all the necessary data.
The PROFIBUS Compact Repeater is intended for use in a
PROFIBUS network only. For that reason, the configuring
engineer, user, and installing technician must observe the
standards, safety and accident prevention rules applicable in the
particular application. The operator of the automation system is
responsible for observing these rules.
1.4 Use as intended
The PROFIBUS Compact Repeater must only ever be used as
described in these instructions.
1.5 Avoiding use not as intended!
Safety-related functions must not be controlled using the
PROFIBUS Compact Repeater alone.
1.6 Symbols used
The following symbols are used in this manual.
!
Caution, indicates hazards and sources of error
Hazard, general or specific
Danger of electric shock
i
Gives information
PROFIBUS Compact Repeater 7

2Installation and Mounting
The PROFIBUS Compact Repeater must be installed according to
VDE 0100 IEC 364. The PROFIBUS Compact Repeater has degree
of protection IP20.
Ambient temperature: 0 ºC – 60 ºC.
Before you start installation work, all system components must
be disconnected from their power source. Danger of electric shock!
During installation, the safety and accident prevention rules
that apply to the specific application must be followed (e.g. protection
against static discharges).
The PROFIBUS Compact Repeater is plugged directly into the SUB
D female connector of the PROFIBUS station instead of the
normal PROFIBUS device connector. It is locked in place with the
two screws on the sides.
Via the SUB D female connector, a diagnostic device or a stub line
can be connected. The front panel must be accessible in this case.
The cables of the PROFIBUS are routed downward out of the
repeater housing. There must be room for the PROFIBUS cables
here.
If the PROFIBUS Compact Repeater is at the end of a segment, the
termination must be ON.
If the PROFIBUS Compact Repeater is in the middle of a segment
(e.g. to start a stub line), you must switch the termination OFF.
8 PROFIBUS Compact Repeater

3Short Description of the PROFIBUS Compact
Repeater
3.1 Application and function description
The PROFIBUS Compact Repeater is a normal PROFIBUS Compact
Repeater despite its small dimensions. It regenerates the electrical
signal arriving on the bus line and retransmits it. The level, edge
steepness, and mark-to-space ratio of the signals are reproduced
exactly. At the same time, it electrically isolates the receive lines
from the transmit lines.
These functions can be used
1.) to add a further segment to an existing PROFIBUS (in series or
as a stub line). This increases the possible number of stations on
the PROFIBUS by another 32.
2.) to cover long cable distances without any reduction in data
transmission rate. Up to three PROFIBUS Compact Repeaters can
be connected in series.
The PROFIBUS Compact Repeater is looped into the PROFIBUS in
place of a normal PROFIBUS connector. This permits the
extension, segmentation or branching of the PROFIBUS without
extensive installation. The device is plugged into the PROFIBUS
Compact Repeater and supplies the PROFIBUS Compact Repeater
with the necessary power (+5V). This is done via the SUB D
connector.
The PROFIBUS Compact Repeater permits transmission rates of
9.6 Kbps to 12 Mbps.
3.2 The LED display and its meaning
The front of the housing of the PROFIBUS Compact Repeater
contains a small white surface (see Fig. on Page 8). Behind this
white surface, you will find three LEDs that show you the
operating status of the PROFIBUS Compact Repeater and the
connected PROFIBUS Segment 2.
Meanings:
Color Flashing
/continuous
Meaning
Flashing Repeater is detecting the baudrateBlue
Continuous Baudrate has been detected
Green Flashing or
continuous
Data exchange is in progress on Segment
2
Red Flashing or
continuous
Repeater finds one or more errors on
Segment 2
PROFIBUS Compact Repeater 9

3.3 Connections
The PROFIBUS is connected to the PROFIBUS Compact Repeater
via a terminal block, see Fig. 3-1. To do this, the PROFIBUS
Compact Repeater must be opened. The shielding is grounded via
the metallized repeater casing.
Power supply via Sub D connectors of the PROFIBUS station
Segment 1 A1 green cable
B1 red cable
Segment 2 A2 green cable
B2 red cable
SUB D female connector
An operator panel or programming unit can be connected to the
Sub D female connector of the PROFIBUS Compact Repeater. The
SUB D female connector can also be used for a PROFIBUS stub
line. The SUB D female connector is connected to Segment 1.
Pin assignment
Pin PROFIBUS / SUB D connector 9-way
1 -
2 M 24 V
3 DATA B
4 -
5 GND
6 +5V
7 +24 V
8 DATA A
9 -
10 PROFIBUS Compact Repeater

3.4 Examples of circuits
The combinations that are possible to derive bus structures can be
derived from the block diagram, see Fig. 3-2:
!
The bus cables are
always connected as
stub lines. Do not
connect Ax/Bx and
A
x'/Bx' by cable!
Fig. 3-1:
Block diagram of the
repeater
For long bus lines, repeaters can be connected in series (up to
three repeaters):
Fig. 3-2:
Application example of
a long bus line
PROFIBUS Compact Repeater 11

For complex bus structures, the bus can be constructed with
hierarchical or star topology using repeaters.
Fig. 3-3:
Application example of
more than 32 stations
Up to 32 stations can be connected to one repeater in a
subnetwork. The number of stations can be increased still further
by interposing further repeaters.
Fig. 3-5:
Application example for
maximum baudrate and
maximum length up to
1 km
12 PROFIBUS Compact Repeater

4Technical Data
4.1 Operating conditions
Dimensions in mm (LxWxH) 64 x 40 x 17
Weight approx. 40 g
Housing IP 20
Power supply
Voltage +5 V DC
Current consumption typically 100 mA
Permissible ambient conditions
•Ambient temperature during operation 0 °C ... +60 °C
•Temperature during transportation and
storage
-25 °C ... +75 °C
PROFIBUS interface
Transmission rate 9.6 Kbps to 12 Mbps,
automatic detection
Protocol PROFIBUS DP per EN 50 170
Connector SUB D 9-way
Special features
Quality assurance per ISO 9001:2000
Maintenance Maintenance-free, no
battery
4.2 Transmission rates
The transmission rates on the bus segment are automatically
detected by the PROFIBUS Compact Repeater.
Transmission rate Max. segment length
9.6 Kbps 1000 m
19.2 Kbps 1000 m
45.45Kbps 1000 m
93.75Kbps 1000 m
187.5Kbps 1000 m
500 Kbps 400 m
1.5 Mbps 200 m
3 Mbps 100 m
6 Mbps 100 m
12 Mbps 100 m
PROFIBUS Compact Repeater 13

4.3 Accessories
Manual, German/English 900-972-0RB12/de
900-972-0RB12/en
EasyConnect®PROFIBUS connector without PG 700-972-0BA50
EasyConnect®PROFIBUS connection with PG 700-972-0BB50
EasyConnect®PROFIBUS connector for flexible
cables, without PG 700-972-0FA50
EasyConnect®PROFIBUS connector for flexible
cables, with PG 700-972-0FB50
EasyConnect®PROFIBUS connector axial
for solid cable 700-972-0CA50
EasyConnect®PROFIBUS connector axial
for flexible cable 700-972-0CF50
EasyConnect®PROFIBUS connector with
diagnostic LED without PG 700-972-7BA50
EasyConnect®PROFIBUS connector with
diagnostic LED with PG
Bus connector for PROFIBUS 90° without PG 700-972-0BA12
Bus connector for PROFIBUS 90° with PG 700-972-0BB12
Bus connector for PROFIBUS 35° without PG 700-972-0BA41
Bus connector for PROFIBUS 35° with PG 700-972-0BB41
Bus connector for PROFIBUS axial 700-972-0CA12
Bus connector for PROFIBUS
with Atex approval, without PG, Ex-Zone 2 700-973-0BA12
Bus connector for PROFIBUS
with Atex approval, with PG, Ex-Zone 2 700-973-0BB12
PROFIBUS connector diagnostics without PG 700-972-7BA12
PROFIBUS connector diagnostics with PG 700-972-7BB12
PROFIBUS FLEXtra profiPoint 700-972-1AA02
PROFIBUS FLEXtra twinRepeater 700-972-2AA02
PROFIBUS FLEXtra multiRepeater 4-way 700-972-4AA02
PROFIBUS FLEXtra multiRepeater 6-way 700-972-6AA02
Insulation stripping tool for PROFIBUS 700-972-6AA00
14 PROFIBUS Compact Repeater

5Further Documentation
Internet: www.helmholz.com, www.profibusstecker.de
Siemens Manuals: “Installing and Wiring the S7-300/S7-400”, “S7-
300 Module Data”
“Profibus DP/DPV1”, Manfred Popp, Hüthig Verlag
“Profibus-Handbuch“, Max Felser, Berner Fachhochschule, CH-
3400 Burgdorf, http://www.profibus-felser.ch/
PROFIBUS Compact Repeater 15

Notes
16 PROFIBUS Compact Repeater