IBA ibaBM-DPM-S User manual

Manual
Issue 2.11
ibaBM-DPM-S
Profibus-Sniffer

Manufacturer
iba AG
Koenigswarterstr. 44
90762 Fuerth
Germany
Contacts
Head office [phone]
Fax [phone]
Support [phone]
Technology [phone]
E-Mail: [email protected]
Web: www.iba-ag.com
This manual must not be circulated or copied, or its contents utilized and disseminated,
without our express written permission. Any breach or infringement of this provision will
result in liability for damages.
© iba AG 2013, All rights reserved.
The content of this publication has been checked for compliance with the described
hardware and software. Nevertheless, deviations cannot be excluded completely so
that the full compliance is not guaranteed. However, the information in this publication
is updated regularly. Required corrections are contained in the following regulations or
can be downloaded on the Internet.
The current version is available for download on our web site www.iba-ag.com.
Copyright notice
Windows®is a label and registered trademark of the Microsoft Corporation. Other pro-
duct and company names mentioned in this manual can be labels or registered trade-
marks of the corresponding owners.
Certification
The product is certified according to the European standards and directives. This prod-
uct meets the general safety and health requirements.
Further international customary standards and directives have been observed.
Issue Date Revisions Chapter/pages Author Version HW/FW
V2.10 04/22/2012 Shield connector 6.1, 7.2.14 st, ko

ibaBM-DPM-S Manual
Issue 2.11 3
Inhaltsverzeichnis
1About this manual.............................................................................................5
1.1 Target group......................................................................................................5
1.2 Notations...........................................................................................................5
1.3 Used symbols ...................................................................................................6
2Introduction.......................................................................................................7
3Scope of delivery ..............................................................................................9
4Safety instructions..........................................................................................10
5System requirements......................................................................................11
5.1 Hardware ........................................................................................................11
5.2 Software..........................................................................................................12
6DIN rail mounting/dismounting......................................................................13
6.1 Mounting .........................................................................................................13
6.2 Dismounting....................................................................................................13
7Device description..........................................................................................14
7.1 Communication interfaces ..............................................................................14
7.2 Views of device, control elements and connections........................................15
7.2.2 On / Off switch S11 ......................................................................................16
7.2.3 Operating status display (status LEDs) .....................................................16
7.2.4 24 V Power supply .....................................................................................17
7.2.5 Status LEDs on the communications interface ..........................................17
7.2.6 Rotary switches S1 and S2....................................................................17
7.2.7 Pushbutton S10 .........................................................................................18
7.2.8 CompactFlash® card slot X24 .....................................................................18
7.2.9 TCP/IP interface (bottom) ..........................................................................18
7.2.10 USB interface (bottom) ..............................................................................18
7.2.11 LEDs for PROFIBUS Bus0, Bus1 .........................................................19
7.2.12 PROFIBUS DP connectors X40 (Bus0) and X41 (Bus1) , .....................19
7.2.13 PROFIBUS switches S4, S5, S6 ,,.....................................................20
7.2.14 Shield connector ........................................................................................20
8System integration..........................................................................................21
8.1 ibaBM-DPM-S in the ibaPDA environment......................................................21
8.1.1 Connection to the DP-Master (unidirectional).................................................21
8.1.2 Connection to the DP master and other DP slaves (unidirectional)...............22
8.1.3 Connection to the DP master and other DP slaves on the redundant
PROFIBUS....................................................................................................................23
9Configuring and setting up the device..........................................................25
9.1 Basic principles...............................................................................................25

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9.2 Transferring the configuration with the CompactFlash® card...........................26
9.3 Establishing communication connections .......................................................26
9.3.1 Ethernet TCP/IP interface ...............................................................................26
9.3.2 USB Interface..................................................................................................27
9.4 Configuration of the device via the Web interface...........................................31
9.4.1 Starting the Web interfaces.............................................................................31
9.4.2 Info – homepage.............................................................................................34
9.4.3 Network – configuration data ..........................................................................35
9.4.4 Settings...........................................................................................................36
9.4.5 Administrator functions....................................................................................42
9.4.6 Define the time................................................................................................43
10 Configuration in ibaPDA-V6...........................................................................44
10.1 First steps in ibaPDA-V6 configuration ...........................................................44
10.2 Device modules and modules in the I/O-Manager..........................................52
10.2.1 “ibaBM-DPM-S“ device module.......................................................................52
10.2.2 „Sniffer“ module...............................................................................................55
10.2.3 „Active Slave“ module.....................................................................................59
10.2.4 „Dig512 sniffer“ module...................................................................................62
10.3 Diagnostic functions........................................................................................65
10.3.1 Standard Diagnosis.........................................................................................65
10.3.2 Extended diagnosis.........................................................................................65
11 PROFIBUS configuration................................................................................71
11.1 Sniffer operating mode....................................................................................71
11.2 Active slave operating mode...........................................................................71
12 Redundancy mode..........................................................................................73
12.1 Configuration with ibaPDA-V6.........................................................................75
12.1.1 Notes on the „Sniffer“ module.........................................................................76
12.1.2 Notes on the “Active slave“ module ................................................................77
12.1.3 Notes on diagnosis..........................................................................................77
12.1.4 Special features I/O types...............................................................................78
12.2 PROFIBUS configuration................................................................................79
12.2.1 Sniffer mode of operation on the redundant PROFIBUS ................................79
12.2.2 Operation as active slave on the redundant PROFIBUS................................80
13 Technical data..................................................................................................84
13.1 Connections/indicators....................................................................................84
13.2 Data transmission ...........................................................................................85
13.3 Dimension sheet .............................................................................................86
14 Support and contact .......................................................................................87

ibaBM-DPM-S Manual
Issue 2.11 5
1 About this manual
This manual describes the construction, the use and the operation of the device
ibaBM-DPM-S. If you plan to use the device in DPM-S-64 mode (for replacing an old
ibaBM-DPM-64 device), please refer to the manual of ibaBM-DPM-S-64.
For further information concerning the system integration and software configuration
please refer to the corresponding engineeringmanuals and / or software documentation of
our software products used in conjunction with this device.
1.1 Target group
Thismanual addressesin particularthequalifiedprofessionalswhoare familiarwithhand-
ling electrical and electronic modules as well as communication and measurement tech-
nology. A person is regarded to as professional if he/she is capable of assessing safety
and recognizing possible consequences and risks on the basis of his/her specialist train-
ing, knowledge and experience and knowledge of the standard regulations.
1.2 Notations
In this manual the following notations are used:
Menu command Menu "Logic diagram"
Calling the menu command „Step 1 – Step 2 – Step 3 – Step x”
Example:
Select the menu "Logic diagram - Add - New func-
tion block".
Keys <Key name>
Example:
<Alt>; <F1>
Press the keys
simultaneously
<Key name> + <Key name>
Example:
<Alt> + <Ctrl>
Buttons <Button name>
Example:
<Ok>; <Cancel>
Filenames, paths „Filename“, „Path”
Example:
„Test.doc“

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1.3 Used symbols
If safety instructions or other notes are used in this manual, they mean:
The non-observance of this safety information may result in an imminent risk of death
or severe injury:
By an electric shock!
Due to the improper handling of software products which are coupled to input and
output procedures with control function!
If you do not observe thesafety instructions regardingthe process andthe systemor ma-
chine to be controlled, there is a risk of death or severe injury!
The non-observance of this safety information may result in a potential risk of death or
severe injury!
The non-observance of this safety information may result in a potential risk of injury or
material damage!
Note
A note specifies special requirements or actions to be observed.
Important note
Note if some special features must be observed, for example exceptions from the rule.
Tip
Tip or example as a helpful note or insider tip to make the work a little bit easier.
Other documentation
Reference to additional documentation or further reading.

ibaBM-DPM-S Manual
Issue 2.11 7
2 Introduction
As a member of the bus monitor family ("ibaBM-.."), the ibaBM-DPM-S device is used
by the iba process data acquisition or control systems as an interface for logging data
on the PROFIBUS DP ("...DPM.."). It belongs to a new generation of devices ("...-S")
with a modular construction, which, among other things, permits a higher rate of data
transmission to ibaPDA systems.
The device can also be used as a replacement for its predecessor ibaBM-DPM-64. The
corresponding mode of operation can be activated in the web interface of the device. The
behavior then is exactly the same like of the new ibaBM-DPM-S-64. To get more informa-
tion about this mode of operation please refer to the manual of the ibaBM-DPM-S-64. In
the following only the ibaBM-DPM-S functions are described.
In contrast to its predecessor, the ibaBM-DPM-64, the new device provides two basic
modes of operation which can be used alone or simultaneously: the so-called "sniffer"
mode and the active slave mode.
Both modes can also be used for operation of the ibaBM-DPM-S on the redundant
PROFIBUS with SIMATIC S7-400H controls.
Sniffer mode
In sniffer mode you can use the device to read all data sent on a PROFIBUS without re-
quiringaspecial PROFIBUS configurationand without thedevice itselfbeing an activesta-
tion on the bus.
Fig. 1: Principle of operation in sniffer mode
Mode as active slave
In active slave mode, by contrast, the device provides up to eight DP slaves and is there-
fore an active station on the PROFIBUS (for example like a Siemens ET200). This means
that it can be seamlessly integrated into an existing PROFIBUS DP network with a stan-
dardDPmaster.Only theappropriateslaveaddresses arerequiredin the PROFIBUScon-
figuration, and the device must be provided with data.

Manual ibaBM-DPM-S
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Fig. 2: Principle of operation as active slave
The two modes of operation can also be combined. In this case the ibaBM-DPM-S reads
data that is specifically targeted for the device as well as data for other DP stations.
Operation on the redundant PROFIBUS
For using the redundant mode, a supplementary license is needed. Being used in the re-
dundancy mode, ibaBM-DPM-S can read and capture data from redundant PROFIBUS
strings of S7-400H controls. The device can be used in both modes, the sniffer mode and
the active slave mode.
ibaBM-DPM-S monitors the telegram traffic on both PROFIBUS lines.Thedevice decides
individually for each slave, from which line data are taken.
The device can be operated either in redundancy or in normal mode. A combination of
modes is not possible.
Integration in a DP network
For integrating the device in an existing DP network, no major physical changes have to
be made. Due to its size and the mounting panel, the ibaBM-DPM-S device can be
mounted between master and network. Due to the FO connection, the PROFIBUS data
can be transferred over long distances and across areas with high electromagnetic fields.
Overview of the most important features:
2 PROFIBUS connectors for the connection of 2 DP lines or for looping through to
one line.
Both lines can be terminated separately.
PROFIBUS interface with up to 12 Mbit/s
A total of up to 8 own DP slaves, distributable over one or both lines. Fast ibaNet fi-
ber optic interface with 32 Mbit/s
Logs up to 512 analog signals (up to 1984 bytes) and 512 digital signals in 1 ms
Slot for CompactFlash®cards for configuration data
USB and Ethernet interfaces for configuring the device from your PC
Windows CE®operating system

ibaBM-DPM-S Manual
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Request-S7 and Request-FM458 available with ibaPDA-V6, version 6.17.0 or
higher, Request-TDC available with ibaPDA-V6, version 6.22.0 or higher
Automatic slave collision detection
Enhanced diagnostic functions with ibaPDA-V6 (6.19.0 or higher)
Smart value selection for sniffer mode
Redundancy mode for use on the redundant PROFIBUS (S7-400H) with
ibaPDA-V6 (6.26.3 or higher)
3 Scope of delivery
An ibaBM-DPM-S delivery contains the following components:
ibaBM-DPM-S
ibaBM-DPM-S manual
USB cable (A/B) for connecting ibaBM-DPM-S and a computer
CD-ROM with
GSD file (for "active slaves")
USB driver
Empty parameter files
Application example

Manual ibaBM-DPM-S
10 Issue 2.11
4 Safety instructions
The device should not be operated at voltages exceeding +24 V DC!An overly high op-
erating voltage destroys the device and may result in death or serious injury.
The PROFIBUS cable should be connected after proper completion of the active slave
configuration only.
Please,see also chapter 9.4.4.2 “Active Slaves“ tab (Defining the slave addresses)“ and
11.2 „Active slave operating mode“.
Important note
Do not open the device!
There are no serviceable parts inside the device.
Opening the device will void the warranty.
Note
Cleaning
To clean the device, use a dry or slightly moistened cloth.

ibaBM-DPM-S Manual
Issue 2.11 11
5 System requirements
5.1 Hardware
For operation:
24 V DC, 1 A power supply
To set the device's parameters:
Ethernet or USB connection to a PC or
CompactFlash® card with CompactFlash® card reader
For measuring:
IBM-compatible PC with the following minimum requirements:
1 GHz Pentium III or better
At least one free PCI slot (PC)
At least 512 MB RAM
4 GB free memory on the hard drive for measurement values
For further information on PC requirements, visit our homepage http://www.iba-ag.com.
At least one fiber optic input card of type ibaFOB-D
One ibaNet fiber optic patch cable for connecting ibaBM-DPM-S and ibaPDA-PC.
PROFIBUS DP network
Operation in redundancy mode:
ibaBM-DPM-S firmware beginning with version B4 supports the redundancy mode
Moreover, you need to get a license that is activated via the ibaBM-DPM-S Web in-
terface.
Note
Please contact ibaAG for getting a license key for the redundancy mode.

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5.2 Software
Any automation system with DP master function can send data to ibaBM-DPM-S.
ibaPDA-V6, ibaQDR-V6 beginning with version 6.10.2 on the non-redundant
PROFIBUS or ibaLogic-V4 for measuring and recording data.
ibaPDA-V6 / ibaQDR-V6 beginning with version 6.26.3 for measuring and recording
data on the redundant PROFIBUS.
Note
The following request access procedures can bedone with ibaBM-DPM-S beginning with
version 6.17.0 of ibaPDA-V6:
- ibaPDA-Request-S7
- ibaPDA-Request-FM458.
Beginning with version 6.19.0, also the ibaPDA-Request-TDC request accessprocedures
can be done.
For further information, please read the product manuals.
Note
In redundancy mode, the request access procedure can not be done.

ibaBM-DPM-S Manual
Issue 2.11 13
6 DIN rail mounting/dismounting
6.1 Mounting
1. Locate the DIN rail mounting clip on the rear side of the device. Slowly push down and
in so that the bottom part of the mounting clips snaps onto the bottom part of the rail
and firmly fixes the device to the DIN rail.
2. Ifthere isa rule to ground the device, connectthe deviceto theground (shieldconnec-
tor X29).
3. Once fixed, connect the 24V DC power supplytothe terminationshownon the device.
Ensure that the polarity is correct prior to applying power. Then install the other con-
nections like:
FO cable to the ibaPDA system
Network connection via Ethernet TCP/IP or
USB connection to a PC with Web browser.
Connecting the PROFIBUS cable
Do not connect thePROFIBUS cableuntil theconfigurationofthe “activeslaves“ hasbeen
done correctly.
Please see also chapter 9.4.4.2 “Active Slaves“ tab (Defining the slave addresses)“ and
11.2 „Active slave operating mode“.
Note
If needed, you can activate the PROFIBUS terminating resistor by operating switch S4 or
S5.
6.2 Dismounting
1. Disconnect all external connections from the device.
2. Grasp the device with one hand firmly on the top side. With your free hand, grasp the
bottom of the device and push it lightly down.
3. Afterthatpull thedevice andliftit up.With this action, the device should freeitselffrom
the DIN rail.

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7 Device description
7.1 Communication interfaces
Fig. 3 shows the integration of the device via its communication interfaces in a measure-
ment assembly:
Via the PROFIBUS interfaces, up to 2 PROFIBUS DP strings are connected for
data capturing.
ibaBM-DPM-S sends the captured data via the FO interface to ibaPDA-V6.
Parameters are usually transferred via the network interface of ibaPDA-V6. Alterna-
tively, it can also be done via the USB interface or a CF card.
The Web dialogs are accessed via a USB or a TCP/IP interface.
Figure 3: Communication interfaces

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Issue 2.11 15
7.2 Views of device, control elements and connections
Front view
Front view can be different from the one
shown!
Rear view
Type plate
Fiber optic input (RX) X11
On / off switch S11
Operating state display
Fiber optic output (TX) X10
Power supply terminal (24 V)
X14
CF, LAN, USB status LEDs
PROFIBUS status LEDs Bus0
PROFIBUS status LEDs Bus1
Rotary switch S1
Rotary switch S2
11
DP connector Bus0 X40
Pushbutton S10
CF card slot
DP terminal Bus0 S4
DP bridge S6
DP terminal Bus1 S5
DP connector Bus1 X41
Shield connector X29
USB connector X23
LAN connector X22
Device name
iba article number
Serial number
CE mark
MAC address
Hardware and software versions
(e.g.: HW A1, SW A2)
Top view
Bottom view
Figure 4: Device views

Manual ibaBM-DPM-S
16 Issue 2.11
7.2.1.1 Fiber optic cable connectors RX / TX 
RX: 32 Mbit/s FO reception without function yet.
TX: 32 Mbit/s fiber optic transmission interface for direct data transmission to an
ibaPDA-V6 or ibaLogic system.
Your ibaPDA-V6 or ibaLogic system requires an ibaFOB-D card to receive data.
7.2.2 On / Off switch S11 
Note
Devices from the first series up to no. 500 still have the (incorrect) designation S1 here.
Use this switch to turn the device on and off.
Turning the device on and off has no effect on the PROFIBUS, i.e. other PROFIBUS
communication will continue without disruption when the device is switched off.
When you turn the device off and then restart it, it is rebooted. This is useful for in-
stance when a fatal error has occurred (Error LED) or if you want to load new device
parameters.
7.2.3 Operating status display (status LEDs) 
LED Status Description
Run
(green) Blinking (approx. 1 Hz)
On or off
Device is working; irregular blinking rate indicates device is
overloaded
Controller ok, device has "crashed"
3.3 Mbit/s
(yellow) off
blinking
on
No communication 3.3 Mbit/s
Data transfer rate 3.3 Mbit/s (send only); only DPM-S-64 mode
Data transfer rate 3.3 Mbit/s (send and receive); only DPM-S-64
mode
32 Mbit/s
(white) off
on
No communication 32 Mbit/s on TX
Data transfer rate 32 Mbit/s on TX OK
Stop
(red) off
blinking
on
Normal, everything OK
Defect, start-up error
Defect, device-internal applications not running (possibly non
valid parameters or corrupt parameter file)
Table 1: Status LEDs

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Issue 2.11 17
7.2.4 24 V Power supply 
The ibaBM-DPM-S device requires an external 24 V DC power supply (unregulated) and
should be operated at a maximum of 500 mA. The operating voltage should be run
throughthe provided2-pin Phoenix threadedcouplingconnector.If desired,youcanorder
DIN rails or plug-in power supply units from iba.
7.2.5 Status LEDs on the communications interface 
LED Status Description
CF Off
Green
Red
No CF card inserted
Card detected (card may also be empty), driver loaded; LED
flickers during data transfer.
Error CF card, e.g. incorrect card type or start-up phase.
Ethernet Off
Green
Red
Ethernet cable not connected
Driver loaded, LAN ready; LED flickers during data transfer
Defect; driver not loaded
USB Off
Green
Red
Normal if nothing is connected
Connected device detected, driver loaded, LED flickers during
data transfer
Defect or communication setup
Table 2: Status LEDs of communication interfaces
7.2.6 Rotary switches S1 and S2
These switches provide some special functions.
7.2.6.1 Transmission of configuration data from CF disk to flash memory
1. Set S1 and S2 to position „3“.
2. Plug inthe CF card(containing the configuration data), press the push button S10 and
holdit whenyou switch on the device. During thebootprocedure, theconfigurationwill
be loaded from theCF card into theinternal flashmemory. Over this way(CF card)you
may transfer a configuration which was created with ibaPDAinto the device even if no
Ethernet or USB connection.
7.2.6.2 Reset to default settings
1. Turn switch S1 to “6” and S2 to “9”.
2. Push and hold push button S10 and switch device off and on with switch S11. The
status LEDs blink for approximately 10 s with 1 Hz.
3. As soon as the LEDs start blinking, release the push button S10.
4. The device restores the default settings and restarts automatically.
Important note
We recommend setting back the hex switches on „0“.

Manual ibaBM-DPM-S
18 Issue 2.11
Now all customized settings are deleted and set back to default settings, i. e. also spe-
cific settings for TCP/IP or USB are reset, incl. passwords. Saved settings of signal pa-
rameters (*.csv) and the activated number of active slaves remain.
7.2.7 Pushbutton S10 
Reset to default settings, see chapter 7.2.6. “Rotary switches S1 and S2“.
7.2.8 CompactFlash® card slot X24 
Standard card slot for CompactFlash® cards
Works with CF, CF+, Type I and Type II cards. There is no speed-up advantage
when using faster cards (CF+).
There may be minor occurrences of data loss when using very slow cards, seen
only with Ultron CompactFlash 128 MB yet. Please do not use this CF card with our
device.
TheCompactFlash®-cardisalso usedas storageand transportmedium forthe configura-
tion files. If you want to look up how to use CF cards, please see chapter 9.2 “Transferring
the configuration with the CompactFlash® card” and chapter 9.4.4 “Settings“.
Note
TheCompactFlash®card must not be removed during startup orduring writeaccess. This
could damage or destroy data. When you remove the card, ensure that the "CF" LED is
not blinking either green or red. When inserting or removing the card, you do not have to
switch off the device.
7.2.9 TCP/IP interface (bottom) 
The device can be connected to a PC or a network over a TCP/IP interface.
The interface has a unique MAC address and is used for transferring configuration files
(device parameters).
Note
For connecting the device directly to a PC, please use a cross-over cable. For further in-
formation, see chapter 9.3.1 “Ethernet TCP/IP“.
7.2.10 USB interface (bottom) 
The device can be connected to a PC over a USB interface. It can be used for pa-
rameterize the device.
The interface conforms to the USB 2.0 standard.
For further information, see chapter 9.3.2 “USB“.

ibaBM-DPM-S Manual
Issue 2.11 19
7.2.11 LEDs for PROFIBUS Bus0, Bus1 
PROFIBUS
LED Status Description
Run
(green) Blinking
Off
PROFIBUS controller active and OK
Error in the CPU of the DP controller
Bus
(yellow) Off
Blinking fast (appr.
0.1 s)
Blinking slowly
(appr. 0.8 s)
On
No PROFIBUS found or no communication
At least one master active in the DP, but no slave
At least one master and at least one slave are active in the
DP, but not all slaves that were configured
All configured master and slaves are active in the DP
Act
(white) Blinking
On
No communication with DP or transmission rate is still be-
ing detected. Default values are being sent to ibaPDA.
(only in DPM-S mode)
Transmission rate detected and set. Values are read in the
DP and sent to ibaPDA (only in DPM-S mode)
When the device is working in DPM-S-64 mode, the white
LED has no function and is off.
Error
(red) Off
On
Blinking (short
lighting
appr. 0.125 s)
Normal state
DP-line error or boot phase, incorrect parameterization or
error while starting
Sporadic errors in the DP
Table 3: LEDs for PROFIBUS Bus0, Bus1
7.2.12 PROFIBUS DP connectors X40 (Bus0) and X41 (Bus1) , 
Standard PROFIBUS DP connector (Sub-D 9):
These connectors can each accommodate one PROFIBUS line.
You can use connectors with incoming and outgoing wires as well as end plugs with
only incoming lines.
Important note
Ensure that the S4, S5 and S6 switches are set correctly!
See also chapter 7.2.13 “PROFIBUS switches S4, S5, S6 ,,“.

Manual ibaBM-DPM-S
20 Issue 2.11
7.2.13 PROFIBUS switches S4, S5, S6 ,,
For all switches:
ON = Switch closed
OFF = Switch open.
Note
Before connecting a PROFIBUS network, please carefully check the switch position with
regardto bustermination. Werecommend that youfirst set allswitchestoOFF as termina-
tion is often provided in the connector.
Switch S4 is used to switch the terminating resistor for Bus0 on and off.
Switch S5 is used to switch the terminating resistor for Bus1 on and off.
Switch S6 is used to disconnect or connect both lines Bus0 and Bus1.
Important note
In redundancy mode, the S6 switch has to be set to OFF, as the both redundant
PROFIBUS strings must be connected separately.
The following switch positions can be chosen:
Connection configuration/operating mode S4 S5 S6
Bus0 and Bus1 are to be operated separately.
(a different PROFIBUS line is connected to each connection) OFF
ibaBM-DPM-S is not the last device on Bus0 OFF OFF
ibaBM-DPM-S is not the last device on Bus1 OFF OFF
ibaBM-DPM-S is the last device on Bus0 ON OFF
ibaBM-DPM-S is the last device on Bus1 ON OFF
ibaBM-DPM-S is to be looped into a PROFIBUS line,
whereby only two cable ends with end plugs of the same line
are available.
OFF OFF ON
Bus0 and Bus1 are monitored simultaneously in redundancy
mode, the device is not the last one in the line. OFF OFF OFF
Bus0 and Bus1 are monitored simultaneously in redundancy
mode, the device is the last one in the line. ON ON OFF
Table 4: Switch combinations S4, S5 and S6
7.2.14 Shield connector 
Socket for connecting the protective ground. Depending on the control cabinet configura-
tion it may be necessary to connect the Profibus cable shields to the X29 connector.
If the Profibus cable shields are already connected to the protective ground of the control
cabinet, connect the X29 connector also to the protective ground of the control cabinet.