Softing Modbus mbGate PA User manual

© Softing Industrial Automation GmbH
Modbus Gateways
User Guide
Version: EN-092019-1.21

Disclaimer of liability
Softing Industrial Automation GmbH
Richard-Reitzner-Allee 6
85540 Haar / Germany
http://industrial.softing.com
Scan the QRcode to find the latest documentation on the product web page under Downloads.
+ 49 89 4 56 56-340
+ 49 89 4 56 56-488
[e-mail]
[e-mail]
The information contained in these instructions corresponds to the technical status at the time of printing of it and is passed on with the
best of our knowledge. Softing does not warrant that this document is error free. The information in these instructions is in no event a
basis for warranty claims or contractual agreements concerning the described products, and may especially not be deemed as warranty
concerning the quality and durability pursuant to Sec. 443German Civil Code. We reserve the right to make any alterations or
improvements to these instructions without prior notice. The actual design of products may deviate from the information contained in
the instructions if technical alterations and product improvements so require.
Trademarks
FOUNDATION™ and HART® are marks of the FieldComm Group of Austin, Texas, USA.
Modbus® is a registered trademark of Schneider Electric, licensed to the Modbus Organization, Inc.
OpenSource
To comply with international software licensing terms, we offer the source files of open source software used in our products. For details
see http://opensource.softing.com/
If you are interested in our source modifications and sources used, please contact: [e-mail]

Version EN-092019-1.21 3
Table of Contents
Table of Contents
Chapter 1 ...................................................................................... 7 About this guide
............................................................................................................... 7
1.1 Read me first
............................................................................................................... 7
1.2 Target audience
............................................................................................................... 7
1.3 Typographic conventions
............................................................................................................... 8
1.4 Document history
............................................................................................................... 8
1.5 Related documentation and videos
............................................................................................................... 8
1.6 Document feedback
Chapter 2 ...................................................................................... 9 About the gateways
............................................................................................................... 9
2.1 Intended use
............................................................................................................... 9
2.2 Specifications
............................................................................................................... 10
2.3 Supported features
............................................................................................................... 10
2.4 System requirements
............................................................................................................... 10
2.5 Safety precautions
Chapter 3 ...................................................................................... 11 Installation
............................................................................................................... 11
3.1 Hardware installation
.......................................................................................................... 11
Mounting and dismounting3.1.1
.......................................................................................................... 12
Connection diagrams mbGate PA3.1.2
.......................................................................................................... 13
Connection diagram mbGate PB3.1.3
.......................................................................................................... 13
Connection diagram mbGate DP3.1.4
.......................................................................................................... 14
Connecting the power supply3.1.5
.......................................................................................................... 14
Installation positions3.1.6
.......................................................................................................... 17
Connecting to the network3.1.7
.......................................................................................................... 18
Powering up the device3.1.8
............................................................................................................... 19
3.2 Software installation
Chapter 4 ...................................................................................... 20 Configuration
............................................................................................................... 20
4.1 Prerequisites
............................................................................................................... 20
4.2 Changing the IP address of a gateway
............................................................................................................... 22
4.3 Setting the IP address of your PC
............................................................................................................... 23
4.4 Login to user interface
............................................................................................................... 24
4.5 Installing a license
............................................................................................................... 26
4.6 Configuring high availability
............................................................................................................... 27
4.7 Configuring MODBUS
............................................................................................................... 27
4.8 Configuring PROFIBUS
Chapter 5 ...................................................................................... 29 Connection to a controller
............................................................................................................... 29
5.1 Modbus Mapping
.......................................................................................................... 29
Master status5.1.1

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Table of Contents
4
.......................................................................................................... 30
Device information5.1.2
.......................................................................................................... 32
Process data5.1.3
.......................................................................................................... 33
Acyclic communication5.1.4
.......................................................................................................... 35
High availibility registers5.1.5
.......................................................................................................... 37
Connection monitoring5.1.6
............................................................................................................... 37
5.2 Implementing Modbus with Unity Pro
............................................................................................................... 37
5.3 Implementing Modbus with TIA Portal
Chapter 6 ...................................................................................... 38 Asset Management
............................................................................................................... 38
6.1 Setting device parameters with PACTware
.......................................................................................................... 38
Prerequisites6.1.1
.......................................................................................................... 38
Configuring the PROFIBUS driver6.1.2
.......................................................................................................... 40
Creating a project in PACTware6.1.3
............................................................................................................... 41
6.2 Setting device parameters with SIMATIC PDM
.......................................................................................................... 41
Prerequisites6.2.1
.......................................................................................................... 41
Configuring the PROFIBUS driver6.2.2
.......................................................................................................... 41
Connecting the SIMATIC Manager6.2.3
Chapter 7 ...................................................................................... 45 LED status indicators
............................................................................................................... 46
7.1 Status LEDs (PWR, RUN, ERR and CFG)
............................................................................................................... 47
7.2 High Availability LEDs
............................................................................................................... 47
7.3 Modbus LEDs (MB)
............................................................................................................... 47
7.4 PROFIBUS Master LEDs
Chapter 8 ...................................................................................... 48 Using the web interface
............................................................................................................... 48
8.1 General functions
............................................................................................................... 48
8.2 Information
.......................................................................................................... 49
System8.2.1
.......................................................................................................... 49
License8.2.2
.......................................................................................................... 49
About8.2.3
............................................................................................................... 50
8.3 Settings
.......................................................................................................... 50
Network8.3.1
.......................................................................................................... 51
User accounts8.3.2
.......................................................................................................... 52
Firmware update8.3.3
.......................................................................................................... 54
Reset8.3.4
.......................................................................................................... 54
HTTPS certificates8.3.5
.......................................................................................................... 56
Licensing8.3.6
.......................................................................................................... 57
High Availability8.3.7
............................................................................................................... 58
8.4 Diagnosis
.......................................................................................................... 58
Settings8.4.1
.......................................................................................................... 59
Logfile8.4.2

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Table of Contents
.......................................................................................................... 60
Threads8.4.3
.......................................................................................................... 60
Status8.4.4
............................................................................................................... 61
8.5 MODBUS TCP
.......................................................................................................... 61
Settings8.5.1
.......................................................................................................... 62
Mapping8.5.2
.......................................................................................................... 62
Log8.5.3
............................................................................................................... 63
8.6 PROFIBUS
.......................................................................................................... 63
Configuration8.6.1
.......................................................................................................... 64
Log8.6.2
Chapter 9 ...................................................................................... 65 Declaration of conformity

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Chapter 1 - About this guide
Version EN-092019-1.21 7
1About this guide
1.1 Read me first
Please read this guide carefully before using the device to ensure safe and proper use. Softing does not
assume any liability for damages due to improper installation or operation of this product.
This document is not warranted to be error-free. The information contained in this document is subject to
change without prior notice. To obtain the most current version of this guide, visit the Download Center on
our website at: http://industrial.softing.com/en/downloads
1.2 Target audience
This guide is intended for experienced operation personnel and network specialists responsible for
configuring and maintaining field devices in process automation networks. Any person using a Modbus
Gateway must have read and fully understood the safety requirements and working instructions in this
guide.
1.3 Typographic conventions
The following conventions are used throughout Softing customer documentation:
Keys, buttons, menu items, commands and other
elements involving user interaction are set in
bold font and menu sequences are separated by
an arrow
Open Start Control Panel Programs
Buttons from the user interface are enclosed in
brackets and set to bold typeface
Press [Start] to start the application
Coding samples, file extracts and screen output is
set in Courier font type
MaxDlsapAddressSupported=23
Filenames and directories are written in italic
Device description files are located in C:
\<Application name>\delivery\software
\Device Description files
CAUTION
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in
damage or injury.
Note
This symbol is used to call attention to notable information that should be followed during
installation, use, or servicing of this device.
Hint
This symbol is used when providing you with helpful user hints.
Video
This symbol indicates a video on the corresponding topic.

Modbus Gateways - User Guide
8Version EN-092019-1.21
1.4 Document history
Document version
Changes since last version
1.00
First version
1.10
Description of 2-channel Modbus Gateway added.
1.11
Maximum permissible ambient temperatures changed for horizontal and
vertical mounting of gateways. See Installation positions for details.
1.20
Additional features including licensing and high availability added and
related chapters and screenshots updated.
1.21
connection diagrams modified, interface functions described and
reference to Modus trademark added.
1.5 Related documentation and videos
The following links provide additional product information:
Documents
Videos
1.6 Document feedback
We would like to encourage you to provide feedback and comments to help us improve the
documentation. You can write your comments and suggestions to the PDF file using the editing tool in
Adobe Reader and email your feedback to [e-mail].
If you prefer to write your feedback directly as an email, please include the following information with
your comments:
document name
document version (as shown on cover page)
page number
14
48

Chapter 2 - About the gateways
Version EN-092019-1.21 9
2About the gateways
The Softing Modbus Gateway offers robust data mapping between a Modbus TCP server and a PROFIBUS
master for easy connection of PROFIBUS network slave devices to a Modbus control system.
The mbGate PA is available as a 2-channel model and a 4-channel model. Both models integrate
PROFIBUS PA (Process Automation) networks in Modbus systems at a fixed speed of 31.2 kbit/s. The
2-channel model supports up to 32 PROFIBUS PA devices and the 4-channel model up to 64 PROFIBUS
PA devices. This gateway is typically used in areas of process automation with explosive atmosphere.
The mbGate PB integrates PROFIBUS PA (Process Automation) and PROFIBUS DP (Decentralised
Peripherals) networks in Modbus systems at speeds of up to 12Mbit/s. It maps two PROFIBUS PA and
one PROFIBUS DP network segments supporting up to 32 PROFIBUS PA and 32 PROFIBUS DP devices.
This gateway is typically used with a centralized controller in factory automation.
The mbGate DP integrates one PROFIBUS DP (Decentralised Peripherals) network with up to 32
PROFIBUS DP devices in Modbus systems at speeds of up to 12Mbit/s.
All three gateways support industry-standard device configuration, parameterization and condition-
monitoring tools.
Engineering systems and asset management systems
The Modbus Gateway can be managed with the following tools:
Modbus engineering system (e.g. Schneider Unity Pro, Siemens TIA Portal)
FDT frame application (e.g. PACTware)
Siemens SIMATIC PDM (Process Device Manager)
2.1 Intended use
This series of gateways has been designed to integrate PROFIBUS network slaves in Modbus TCP networks.
Any other use is not intended. Follow the instructions in this document on how to configure and operate
the gateways.
CAUTION
Do not use this device in hazardous areas! See Section Specifications for permissible
ambient conditions.
2.2 Specifications
Power supply
18 VDC...32 VDC; SELV/PELV supply mandatory
Typical input current is 200 mA; maximum is 1 A (considering the rush-in
current at switch-on).
Ethernet
IEEE 802.3 100BASE-TX/10BASE-T
Minimum ambient
operating temperature
-40 °C (see Installation positions for the maximum ambient temperature
depending on the mounting position)
Storage temperature
-40 °C...+85 °C
Altitude
must not exceed 2000 m
Location
indoor use only; no direct sunlight
9
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2.3 Supported features
The Modbus Gateway supports the following features:
Simple connection to PROFIBUS PA and PROFIBUS DP devices using Modbus controllers.
Integration in FDT frame applications.
Integration in Siemens SIMATIC PDM.
Configuration of the gateway in a web browser.
Integrated configurator to start up the PROFIBUS devices.
Access to process values of PROFIBUS devices (input und output) in the Modbus control program.
Access to operation state and Life Sign of the PROFIBUS devices in the Modbus control program.
Changing of operation state of the PROFIBUS Master (STOP/RUN) in the Modbus control program.
Acyclic reading and writing of device parameters in the Modbus control program.
Detailed display of the operation state by LEDs.
Two Ethernet interfaces (switched internally).
Power supply by connectors or rail connectors.
High Availability.
2.4 System requirements
This gateway can be used in combination with a Modbus engineering system such as Schneider Unity Pro or
Siemens TIA Portal. When the gateway is used to parametrize PROFIBUS devices you need a Siemens
SIMATIC PDM or an FDT frame application like PACTware. Also required are:
24V power supply
one power conditioner per PROFIBUS PA segment
field barrier (for Ex environment)
PC with web browser
GSD file for each PROFIBUS device on your network
2.5 Safety precautions
CAUTION
During operation, the device's surface will be heated up. Avoid direct contact. When servicing,
turn off the power supply and wait until surface has cooled down.
Note
Do not open the housing of the Modbus Gateway. It does not contain any parts that need to
be maintained or repaired. In the event of a fault or defect, remove the device and return it to
the vendor. Opening the device will void the warranty!

Chapter 3 - Installation
Version EN-092019-1.21 11
3Installation
3.1 Hardware installation
Note
With an ambient temperature above 55 °C at the place of installation it is very likely that the
temperatures of connecting cables will increase if the cables are installed in an unfavourable
position. In such cases, measure the temperature to ensure that the service temperature of
the cables is not exceeded or use cables sustaining high temperatures of at least 90 °C.
3.1.1 Mounting and dismounting
Note
Make sure the Modbus Gateway is mounted in such a way that the power supply can be easily
disconnected.
Note
Depending on the installation position, the maximum ambient operating temperature may
differ. See Section Installation positions for details.
Installation and inspection
Installation and inspection must be carried out by qualified personnel only (personnel qualified
according to the German standard TRBS 1203 - Technical Regulations for Operational Safety).
The definition of terms can be found in IEC 60079-17.
Mounting
1. Hook the upper notch of the cut-out on the back of the
Modbus Gateway into a 35 mm DIN rail.
2. Press the Modbus Gateway down towards the rail until it
slides into place over the lip of the locking bar.
Note
Do not put stress on the system by bending or torsion.
Dismounting
1. Slide a screwdriver diagonally under the housing into the
locking bar.
2. Lever the screwdriver upwards, pull the locking bar
downwards - without tilting the screwdriver - and move the
gateway upwards off the rail.
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3.1.2 Connection diagrams mbGate PA
The mbGate PA is available as a 2-channel model and a 4-channel model. The 2-channel model has 2
physical PROFIBUS segment connections (PA0 to PA1) while the 4-channel model has 4 physical PROFIBUS
segment connections (PA0 to PA3). By connecting two gateways over a redundancy link (RDL) you will
obtain a higher uptime (high availability).
The gateway has two 10/100 Base-T Ethernet ports (ETH1/ETH2). Both RJ45 ports correspond to IEEE
802.3 and are connected to an internal switch for line topologies. The following diagrams show the side
profile of the two mbGate PA models with the input and output interfaces and fieldbus connections at the
bottom:
2-channel model
4-channel model

Chapter 3 - Installation
Version EN-092019-1.21 13
3.1.3 Connection diagram mbGate PB
The following diagram shows the input and output interfaces of the mbGate PB. It has two 10/100 Base-T
Ethernet ports (ETH1/ETH2), two physical PROFIBUS PA segment connections (PA0 to PA1) and one RS-485
link for PROFIBUS DP data communication. By connecting two gateways over a redundancy link (RDL) you
will obtain a higher uptime (high availability). The RJ45 ports correspond to IEEE 802.3 and are connected
to an internal switch for line topologies. The following diagram shows the side profile of the mbGate PB
model with the input and output interfaces and fieldbus connections:
3.1.4 Connection diagram mbGate DP
The following diagram shows the input and output interfaces of the mbGate DP. The gateway has two
10/100 Base-T Ethernet ports (ETH1/ETH2) and one RS-485 link for PROFIBUS DP data communication. By
connecting two gateways over a redundancy link (RDL) you will obtain a higher uptime (high availability).
The RJ45 ports correspond to IEEE 802.3 and are connected to an internal switch for line topologies.

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3.1.5 Connecting the power supply
Note
As the mbGate PA and mbGate PB does not supply power to the PROFIBUS PA connections,
each PA segment of your PROFIBUS network requires its own power supply with power
conditioning (such as power conditioner R.STAHL 9412).
Connect the gateway to a 24 V DC power supply. The supply voltage (18 VDC .... 32 VDC) is connected by a
3-pole terminal block. The power supply is connected to the plug connector via flexible wires with a cross
section of 0.75 to 1.5 mm². The ground connection wire must have a cross section of 1.5 mm².
Pin
Signal
Description
1
GND
Ground
2
Functional earth
3
L+
Positive supply voltage
CAUTION
The Functional Earth (FE) connection of the device has to be connected at low inductance with
the Protective Earth (PE) of the system.
Note
As the connection diagrams show, the power can also be applied by a special DIN rail
connector (Rail Power Supply). For further information contact Softing Industrial Automation
GmbH.
Note
See also the maximum ambient temperatures in the Section Installation Positions .
3.1.6 Installation positions
The Modbus Gateway can be mounted horizontally and vertically. Depending on the installation position,
different ambient operating temperatures (Ta) are allowed.
Minimum distance
Provide a minimum distance of 50 mm to the air inlet and air outlet to ensure natural
convection.
Rotated installation position
The maximum permissible ambient temperature values also apply to a 180° rotated
installation position.
14

Chapter 3 - Installation
Version EN-092019-1.21 15
Horizontal installation position
Maximum ambient temperatures for mbGate PA
Number of PA
channels used
Maximum
fieldbus voltage
Minimum distance
Maximum permissible
ambient temperature Ta
4
32VDC
0 mm
50 °C
2
24VDC
0 mm
55 °C
4
32VDC
17.5 mm
60 °C
2
24VDC
17.5 mm
60 °C
Maximum ambient temperatures for mbGate PB
Number of PA
channels used
Maximum
fieldbus voltage
Minimum distance
Maximum permissible
ambient temperature Ta
2
24VDC
0 mm
55 °C
2
24VDC
17.5 mm
60 °C
Maximum ambient temperatures for mbGate DP
Minimum distance
Maximum permissible
ambient temperature Ta
0 mm
45 °C
17.5 mm
55 °C

Modbus Gateways - User Guide
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Vertical installation position
Maximum ambient temperatures for mbGate PA
Number of PA
channels used
Maximum
fieldbus voltage
Minimum distance
Maximum permissible
ambient temperature Ta
4
32VDC
0 mm
40 °C
2
24VDC
0 mm
45 °C
4
32VDC
17.5 mm
50 °C
2
24VDC
17.5 mm
55 °C
Maximum ambient temperatures for mbGate PB
Number of PA
channels used
Maximum
fieldbus voltage
Minimum distance
Maximum permissible
ambient temperature Ta
2
24VDC
0 mm
45 °C
2
24VDC
17.5 mm
55 °C
Maximum ambient temperatures for mbGate DP
Minimum distance
Maximum permissible
ambient temperature Ta
0 mm
45 °C
17.5 mm
55 °C

Chapter 3 - Installation
Version EN-092019-1.21 17
3.1.7 Connecting to the network
1. Connect each segment of your PROFIBUS network to a port of your gateway. Be sure that each
segment is powered by a power conditioner. If you connect to field devices in explosive atmospheres
ensure that you also connect a field barrier in between.
2. Connect the gateway from one of the two Ethernet ports with your Modbus network.
3. Connect your PC running the engineering and asset management tools using the second Ethernet port.
mbGate PA network topology (2-channel model)
mbGate PB network topology

Modbus Gateways - User Guide
18 Version EN-092019-1.21
mbGate DP network topology
Example of Modbus high availability
3.1.8 Powering up the device
Turn on the power supply. The boot process will take around 15 seconds. For indication of proper
operation refer to LED status indicators .
57
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Chapter 3 - Installation
Version EN-092019-1.21 19
3.2 Software installation
When you install a Softing product for the first time, you will be asked if you trust the publisher. Activate
the option Always trust software from Softing AG if you do not want to be asked in subsequent
installations and select [Install] to start the installation.
1. Go to the mbGate web page to download the latest product software.
2. Start by downloading and installing the Search and Configure tool.
3. Follow the on-screen installation instructions.
4. Read the license agreement carefully.
If you have questions, you can [Cancel] the installation at this point and contact us. Click [Print] if you
want to print the license agreement to a PDF or on a printer.
5. Select I accept the terms in the license agreement and click [Next].
6. Click [Install] to install the selected software application on your PC.
While the installation is in progress, the status bar of the installation wizard shows the different steps
that are being executed. If you want to abort the installation, click [Cancel] button. The installation
wizard will undo all modifications that have been made to your computer up to this point. Otherwise,
wait until the installation is completed.
7. Press [Finish] to complete the installation and exit the wizard.
Note
Proceed with the installation of the other software packages.
Additional installations
Depending on your use case, install one of the following software packages:
Install the FDT frame application PACTware if you are using FDT technology. The PACTware package
includes the communication DTM PROFIdtm.
Install PROFIdtm separately if you are not using PACTware but another FDT frame application like
FieldCare or FieldMate.
Install PDM libraries for integration into Siemens PDM.

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20 Version EN-092019-1.21
4Configuration
The Modbus Gateway comes with an integrated web server which is used to configure the gateway and
the connected PROFIBUS devices. The default IP address of the integrated web server is 192.168.0.10. To
access the Modbus Gateway from your PC, you either have to change the default IP address of the
integrated web server to an address on your network or change the IP address on your PC to match the
network address of your gateway (e.g. 192.168.0.1). Section 4.2 and Section 4.3 describe how to
perform either of the two settings.
4.1 Prerequisites
Ensure that you have downloaded and installed the latest firmware.
The Modbus Gateway is connected to the PROFIBUS PA or PROFIBUS DP segment.
The Modbus Gateway is connected with a PC which runs a standard Internet browser supporting
JavaScript.
GSD files (electronic device descriptions) corresponding to the PROFIBUS devices are available on the
PC.
The Search and Configure tool is installed.
4.2 Changing the IP address of a gateway
Before you can operate the connected Modbus Gateway you will have to change the default IP address of
your gateway so that your PC can communicate with the integrated web server over the Local Area
Network.
The following steps apply to Windows 10.
1. Click Start Softing Search and Configure.
The application window is opened.
2. Click the dropdown list of the Network Adapter Selection.
This selection menu shows all networks you can access from your PC.
3. Select the network adapter which is connected to the gateway.
4. Click [Search] to start searching for connected gateways.
The search may take a moment.
5. Select the gateway you want to configure.
20 22