Kunbus PR100088 User manual

User manual
Gateway component Modbus TCP
PR100088 • 1/17/2019

Table of Contents KUNBUS
ii Gateway component ModbusTCP
Table of Contents
1 General Information ........................................................................................................................3
1.1 Disclaimer..................................................................................................................................3
1.2 Notes Regarding this User Manual............................................................................................3
1.3 Validity .......................................................................................................................................4
1.4 Limitation of Liability ..................................................................................................................4
1.5 Customer Service ......................................................................................................................4
2 Safe Use ...........................................................................................................................................5
2.1 User ...........................................................................................................................................5
2.2 Symbols.....................................................................................................................................5
2.3 Data safety ................................................................................................................................6
3 Overview ..........................................................................................................................................7
3.1 Functionality ..............................................................................................................................7
3.2 Control Elements .......................................................................................................................8
3.3 Status LEDs.............................................................................................................................11
4 Installation .....................................................................................................................................12
4.1 Preparations for Trouble-free Operation..................................................................................12
4.2 Requirements .........................................................................................................................14
4.3 Connecting Gateway Components..........................................................................................15
4.4 Installing a Gateway in the Control Cabinet ............................................................................16
4.5 Connecting a Power Supply ....................................................................................................17
4.6 Connecting a Gateway to the Fieldbus....................................................................................18
5 Configuration.................................................................................................................................19
5.1 Supported size of Process Data ..............................................................................................19
5.2 Address Assignment................................................................................................................19
5.3 Configure Modbus TCP ..........................................................................................................20
6 Integrated servers .........................................................................................................................22
6.1 FTP-Server ..............................................................................................................................22
6.2 Webserver ...............................................................................................................................22
6.3 Install firmware update ............................................................................................................24
7 Technical Data...............................................................................................................................29
7.1 Technical Data.........................................................................................................................29

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1 General Information
1.1 Disclaimer
© 2019 KUNBUS GmbH, Denkendorf (Deutschland)
The contents of this user manual have been compiled by KUNBUS
GmbH with the greatest possible care. Due to technical
developments, KUNBUS GmbH reserves the right to change or
exchange the contents of this user manual without prior notice. You
can always obtain the latest version of the user manual from our
homepage: www.kunbus.com
KUNBUS GmbH shall be liable exclusively to the extent specified in
the General Terms and Conditions (www.kunbus.de/agb.html).
The contents published in this user manual are protected by
copyright. Reproduction or use is permitted for the internal use of the
user. Duplication or use for other purposes is not permitted without
the express written consent of KUNBUS GmbH. Contraventions will
result in damages.
Trademark protection
– KUNBUS is a registered trademark of KUNBUS GmbH.
– Windows® und Microsoft® are registered trademark of Microsoft, Corp.
KUNBUS GmbH
Heerweg 15 c
73770 Denkendorf
Germany
www.kunbus.de
1.2 Notes Regarding this User Manual
This user manual provides important technical information that can
enable you as a user to integrate the Gateway into your applications
and systems efficiently, safely and conveniently. It is intended for
trained, qualified personnel, whose sound knowledge in the field of
electronic circuits and expertise of Modbus TCP is assumed.
As an integral part of the module, the information provided here
should be kept and made available to the user.
General Information

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1.3 Validity
This document describes the application of the KUNBUS Gateway
with the product number:
– PR100088, Release 00
– PR100088, Release 01
1.4 Limitation of Liability
Warranty and liability claims will lapse if:
– the product has been used incorrectly,
– damage is due to non-observance of the operating manual,
– damage is caused by inadequately qualified personnel,
– damage is caused by technical modification to the product (e.g.
soldering).
1.5 Customer Service
If you have any questions or suggestions concerning this product,
please do not hesitate to contact us:
KUNBUS GmbH
Heerweg 15 C
73770 Denkendorf
Germany
[phone]
[email protected]
www.kunbus.de
General Information

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2 Safe Use
2.1 User
The Gateway may only be assembled, installed and put into
operation by trained, qualified personnel. Before assembly, it is
absolutely essential that this documentation has been read carefully
and understood. Expertise in the following fields is assumed:
– electronic circuits,
– basic knowledge of Modbus TCP,
– work in electrostatic protected areas,
– locally applicable rules and regulations for occupational safety.
2.2 Symbols
The symbols used have the following meaning:
DANGER Danger
Always observe this information!
There is a safety hazard that can lead to serious injuries and death.
CAUTION Caution
There is a safety hazard that can result in minor injuries and material
damage.
NOTICE Note
There is a safety hazard that can result in material damage.
Safe Use

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2.3 Data safety
Please note that Gatewayis not suitable for use in unprotected
networks (e.g. the Internet).
Use Gateway in a secured network:
.
◦ Seal off your network so that no direct access via the Internet is
allowed.
◦ Immediately change the default password for the web server. You can
find out how to do this in the chapter "Changing the password". Select a
secure new password.
◦ Check our website regularly for the latest software security alerts and
updates for your product. Install the security updates provided by us.
If you do not follow these instructions, it is possible that your module
data may be manipulated.
Safe Use

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3 Overview
3.1 Functionality
The KUNBUS Gateway is a protocol converter. It allows
communication between networks with different protocols.
Illustration1: Functionality as a slave
A Gateway consists of 2 gateway components that master one
specific protocol each. You can combine these gateway components
as you wish. This design offers you a high degree of flexibility, since
you can exchange the individual gateway components at any time.
The following gateway components are currently available as slaves:
– CANopen
– DeviceNet
– EtherCAT
– EtherNet/IP
– Modbus RTU
– Modbus TCP
– POWERLINK
– PROFIBUS
– PROFINET
– Sercos III
The gateway component for DMX can be operated as a master or
slave.
Overview

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In addition, you can combine the gateway components with the
RevPi Core.
3.2 Control Elements
Front view
1
2
3
Illustration2: Front view
1 Status LEDs
2 Coding switch
8-pin DIP switch for setting the IP address.
3 Fieldbus connection
RJ45 socket for the connection to the fieldbus (2 sockets in all,
s. figure top view)
Overview

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Top view
1
2
3
Illustration3: Top view
1 Fieldbus connection
RJ45 socket for the connection to the fieldbus (total 2 pieces,
see picture front view)
2 Interconnect ports
for connecting the gateway components to each other
3 Locking clamp
for secure fastening of the gateway component on the top-hat
rail
Overview

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Bottom view
1
2
Illustration4: Bottom view
1 Power supply
with 24 V supply voltage
2 Locking clamp
for secure mounting of the gateway component on the top-hat rail
Overview

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3.3 Status LEDs
The signals of the status LEDs for Modbus TCP have the following
meaning:
LED designation Signal Meaning
Power off Gateway component not running
blinks, green Initialization phase not yet completed
on, green Operational
flashes, red Correctable error (e.g. second gateway
component missing)
on, red Serious error/defect in the gateway
MS off Gateway component is not running
blinks, green Configuration not completed
on, green Operation, gateway component runs
without errors
NS off Gateway component is not running
blinks, green Standby mode, no data exchange via
Modbus/TCP
on, green Connection is established, data is ex-
changed
L/A 1 + 2 off No connection
green Connection to another device. No data
exchange takes place.
blinks, green Connection established. Data ex-
change takes place.
Overview

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4 Installation
4.1 Preparations for Trouble-free Operation
In the following section we have compiled some general information
for you that is important for trouble-free operation. If you are already
acquainted with this topic, you can skip to the next section. There,
you will learn about which conditions are necessary for installing the
gateway.
Cable routing
Route your cables separately in cable groups. This will protect your
gateway from any unintended electromagnetic interferences.
The following groups should be routed separately from each other:
Group Line
A Data and power supply lines for:
DC voltage below 60V
AC voltage below 25V
B Data and power supply lines for:
DC voltage between 60V and 400V
AC voltage between 25 and 400V
C Power supply lines above 400V
– You can route cables of the same group together in cable ducts or
bundles.
– Cables of group A and B:
– Route the groups in separate bundles or
– in cable ducts at a minimum distance of 10 cm from each other.
– Cables of group C
– Route the groups in separate bundles or
– in cable ducts at a minimum distance of 50 cm from the other
groups.
Shielding
Shield your cables. This will reduce any unintended electromagnetic
interferences.
Potential equalization
Potential differences occur when devices are connected to different
earths. These potential differences cause malfunctions.
Installation

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To prevent malfunctions, you have to route an equipotential
equalization conductor.
When doing so, bear in mind the following points:
– Select an equipotential equalization conductor with low impedance.
– Select the following as a reference value for the cross-section of the
potential equalization cable:
– 16 mm2 for potential equalization cables of up to 200 m in length
– 25 mm2 for potential equalization cables of more than 200 m in
length
– Use potential equalization cables made of copper or galvanized steel.
– Connect potential equalization cables extensively with the earth rail.
– The smallest surfaces possible should be sandwiched between
potential equalization cables and signal cables.
If the devices of the control system are connected by shielded signal
cables that are earthed on both sides, the impedance must be 10%
of the shielding impedance.
Installation

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4.2 Requirements
The Gateway was designed for use in a control cabinet.
üThe protection class of the control cabinet must be equivalent to at least
IP54.
üFor installation in the control cabinet you need a DIN rail 35 x 7.5mm
(EN50022).
◦ Install the DIN rail horizontally in the control cabinet according to the
manufacturers' specifications. When doing so, make sure that the
Gateway is at a sufficient distance from other devices.
NOTICE Your gateway could be damaged if temperatures are too high.
èMake sure that the ambient temperature in the control cabinet is less
than 60°C.
èKeep the ventilation slots unobstructed. These must not be covered by
cables etc.
èMaintain sufficient distance from other devices.
Illustration5: Distances for installation
◦ Connect each gateway component individually to functional earth.
When doing so, make sure that the power supplies of both gateway
components have the same ground.
ðYour control cabinet now meets all requirements for installing the
gateway.
Installation

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4.3 Connecting Gateway Components
In order to attain a fully functional gateway, you have to interconnect
both gateway components.
◦ Connect an interconnect port to each gateway component using the
plug-in jumper provided.
Illustration6: Connecting gateway components
ðYou can now install the gateway in the control cabinet.
NOTICE Only ever interconnect 2 gateway components.
If you connect additional components, severe defects could result on all
devices.
Installation

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4.4 Installing a Gateway in the Control Cabinet
◦ Hold the raster element of the gateway on the DIN rail.
◦ Press down the locking elements towards the gateway.
◦ Make sure that the gateway is firmly attached to the DIN rail.
Installation

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4.5 Connecting a Power Supply
To connect the gateway component to the power supply, you need a
spring-loaded terminal (e.g. Metz-Connect SP995xxVBNC).
You have to connect each gateway component separately to a power
supply. Never interconnect functional earth and GND, otherwise the
galvanic isolation between gateway GND and fieldbus ground will be
removed. Instead, connect the functional earth with low impedance to
the potential equalization. You can then dispense with this
connection if the shield of the fieldbus cable is connected to the
potential equalization with lower impedance when entering the
control cabinet.
NOTICE Connect each of the two gateway components to the power supply
èEnsure in particular that no potential differences occur between the
GND pins (2).
Pin assignment:
Pin Assignment
1 24V for module supply
3
124
2 GND
3 Do not connect!
4 Functional earth
NOTICE Do not connect GND to PE
This connection could cause unintended malfunctions.
Installation

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4.6 Connecting a Gateway to the Fieldbus
To connect the gateway component to Modbus TCP, you need Two
RJ45 connectors.
The pin assignment complies with the Ethernet standard.
Installation

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5 Configuration
5.1 Supported size of Process Data
The gateway component for Modbus TCP supports process data up
to a length of 512 bytes per direction.
NOTICE Bear in mind that the maximum length of the process data is always
determined by the fieldbus with the shorter data length.
5.2 Address Assignment
Set IP address
With the 8-pole address switch you can set the IP address of the
Gateways.
You can set values in binary format between 0-255.
Assign IP address manually: ◦ Stellen Sie eine beliebige Adresse zwischen 1-254 ein
ðThe gateway component uses the address 192.168.0.X , the Netork
mask 255.255.255.0 and the Gateway 192.168.0.1
◦ Open the website http://192.168.0.X
◦ Log in:
Login data for initial logon:
User: Admin
Password: 1701
◦ Click on the "Change Configuration" button.
◦ Set the desired IP address.
◦ Confirm the entry with the "Apply" button.“
◦ Set all address switches to "0".
◦ Restart the gateway component by switching it off and on again.
ðThe set IP address is now used.
Get IP address from DHCP
server
◦ Set the value "255" (all switches in the direction of the numbers) to
activate the DHCP mode.
ðThe IP address is automatically assigned by the DHCP server.
Setting the IP address via the
master software
◦ Set the value to "0" (all switches to "Off").
ðThe gateway component uses the IP address that was last set via
the software.
◦ You can change this IP address at any time via the Modbus/TCP
protocol or the website.
◦ Restart the gateway component by switching it off and on again.
ðThe set IP address is now used.
Configuration

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5.3 Configure Modbus TCP
Modbus TCP - Addresses and access functions
Memory areas Predefined memory areas are available for addressing the process
data. Optionally, you can access the input and output data areas bit
by bit (using coils) or word by word.
Register area for word by word access
Address area Use Access Access
type
Meaning
1 - 256 Input Register Read Only Holding/In-
put *
Values provided by the other gateway
component
1025 - 1280 Output Register Read/Write Holding Values that are delivered to the other
gateway component.
4097/0x1001 Gateway-Status Read Only Holding Displays the connection status to the
other gateway component.
0x01 Initialization, hardware is
checked.
0x02 Connection to the other gateway
component is checked.
0x03 Other gateway component de-
tected.
0x04 Communication to the other
gateway component established.
4098/0x1002 Fieldbus status
of the other
gateway com-
ponent.
Read Only Holding 0x00 Fieldbus not connected. Make
check all connections.
0x01 Fieldbus connected, no data
communication. Check whether
an IP address is set.
0x02 Gateway component configured,
no data communication.
0x03 Cyclic data exchange.
4099/0x1003 IP address Read/Write Holding IP address High Word
4100/0x1004 IP address Read/Write Holding IP address Low Word
4101/0x1005 Network mask Read/Write Holding Network mask High Word
4102/0x1006 Network mask Read/Write Holding Network mask Low Word
4103/0x1007 Gateway ad-
dress
Read/Write Holding Gateway address High Word
4104/0x1008 Gateway ad-
dress
Read/Write Holding Gateway address Low Word
4105/0x1009 Max. number of
Modbus/TCP
connections
Read/Write Holding Displays the maximum number of Mod-
bus/TCP connections that can be
present at the same time.
value range: 2-20
4106/0x100a Current number
of Modbus/TCP
connections.
Read Only Holding Shows how many Modbus/TCP connec-
tions are currently available.
Configuration