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RP GW ETHERNET
User guide
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User guide
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KUNBUS RP GW ETHERNET User guide

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User Manual
Gateway component for EtherNet/IP
PR100066 • 1/7/2016
Table of Contents KUNBUS GmbH

Table of Contents

1 General Information ........................................................................................................................3
1.1 Disclaimer..................................................................................................................................3
1.2 Notes Regarding this User Manual............................................................................................4
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
3 Overview ..........................................................................................................................................6
3.1 Functionality ..............................................................................................................................6
3.2 Control Elements .......................................................................................................................8
4 Installation .....................................................................................................................................12
5 Configuration.................................................................................................................................19
6 Technical Data...............................................................................................................................24
ii Gateway component for EtherNet_IP

1 General Information

1.1 Disclaimer

© 2015 KUNBUS GmbH, Denkendorf (Germany)
The contents of this user manual have been prepared by KUNBUS GmbH with the utmost care. Due to technical development, KUNBUS GmbH reserves the right to change or replace the contents of this user manual without prior notice. You can always obtain the latest version of the user manual at our homepage: www.kunbus.de
KUNBUS GmbH shall be liable exclusively to the extent specified in General Terms and Conditions (www.kunbus.de/agb.html).
The contents published in this user manual are protected by copyright. Any reproduction or use for the in-house requirements of the user is permitted. Reproduction or use for other purposes is not permitted without the express, written consent of KUNBUS GmbH. Contraventions shall result in compensation for damages.
General Information
Trademark protection
– KUNBUS is a registered trademark of KUNBUS GmbH
– Windows® and Microsoft® are registered trademarks of Microsoft Corp.
KUNBUS GmbH Heerweg 15 c 73770 Denkendorf Germany
www.kunbus.de
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1.2 Notes Regarding this User Manual

This user manual provides important technical information that can enable you as a user to integrate the Gateways 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 in EtherNet/IPTM is assumed.
As an integral part of the module, the information provided here should be kept and made available to the user.

1.3 Validity

This document describes the application of the KUNBUS Gateway with the product number:
– PR100066, release 00

1.4 Limitation of Liability

Warranty and liability claims will lapse if:
General Information
– 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
+49 (0)711 3409 7077
support@kunbus.de www.kunbus.de
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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 EtherNet/IP,
– work in electrostatic protected areas,
– locally applicable rules and regulations for occupational safety.

2.2 Symbols

The symbols used have the following meaning:
Safe Use
DANGER
CAUTION
NOTICE
Danger
Always observe this information!
There is a safety hazard that can lead to serious injuries and death.
Caution
There is a safety hazard that can result in minor injuries and material damage.
Note
There is a safety hazard that can result in material damage.
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3 Overview

3.1 Functionality

The KUNBUS Gateway is a protocol converter. It allows communication between networks with different protocols.
Overview
Illustration1: Functionality
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
– CC-Link
– DeviceNet
– EtherCAT
– EtherNet/IP
– Modbus RTU
– Modbus TCP
– POWERLINK
– PROFIBUS
– PROFINET
– Sercos III
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Features
This gateway component enables communication with Ethernet/IP and Modbus TCP. It supports the following functions:
– RPI
Minimal Requested Packet Interval: 1ms
– ACD (Address Conflict Detection)
– DLR
You can use the gateway component in a Device Level Ring.
Overview
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3.2 Control Elements

1
2
3
Front view
Overview
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)
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Top
1
2
3
Overview
Illustration3: Top
1 Fieldbus connection
RJ45 socket for connection to the fieldbus (2 pcs, see figure front view).
2 Interconnect ports
for interconnecting the gateway components.
3 Locking clamps
for securely attaching the gateway component to the DIN rail.
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Bottom
1
2
Overview
Illustration4: Bottom
1 Mains connection
with 24 V power supply
2 Locking clamps
for securely attaching the gateway component to the DIN rail.
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3.3 Status LEDs

The signals of the status LEDs for EtherNet/IP have the following meaning:
LED designation Signal Meaning Power off Gateway component not running
MS off No power supply
NS off Gateway component is switched off or has
L/A 1 + 2 off No connection
blinks, green
on, green Operational flashes, red Correctable error (e.g. second gateway
on, red Serious error/defect in the gateway
on, green Gateway component operational blinks,
green on, red Unrecoverable error flashes, red Configuration error flashes red
and green
blinks, green
on, green Connection is established flashes, red Connection interrupted (e.g. due to time-
on, red Set IP address is already being used by
green Connection to another device. No data ex-
blinks, green
Initialization phase not yet completed
component missing)
Configuration not completed
Self-test
no IP address IP address set but no CIP connection has
been established yet
out)
another network subscriber
change takes place. Connection established. Data exchange
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
Installation
– 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.
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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.
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.
Installation
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.
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4.2 Requirements

The Gateway was designed for use in a control cabinet.
NOTICE
ü The protection class of the control cabinet must be equivalent to at least
IP54.
ü For 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.
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.
Installation
Illustration5: Distances for installation
◦ Connect each gateway component individually to functional earth.
ð Your control cabinet now meets all requirements for installing the
Gateway component for EtherNet_IP
When doing so, make sure that the power supplies of both gateway components have the same ground.
gateway.
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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 (product number PR100204).
◦
Installation
Illustration6: Connecting gateway components
ð You can now install the gateway in the control cabinet.
Only ever interconnect 2 gateway components.
NOTICE
If you connect additional components, severe defects could result on all devices.
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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

3
1
2
4
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.
Installation
NOTICE
NOTICE
Connect each of the two gateway components to its own 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 2 GND 3 Do not connect! 4 Functional earth
Do not connect GND to PE
This connection could cause unintended malfunctions.
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4.6 Connecting a Gateway to the Fieldbus

To connect the gateway component to EtherNet/IP, 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 the Process Data

NOTICE
The gateway component for EtherNet/IP supports process data of a length up to 480 bytes.
Type Direction Assembly
Instance
Exclusive Owner Output (master -> slave) 100 up to 480 bytes
Input (slave -> master) 150 up to 480 bytes
Input Only Output (master -> slave) 254 0 bytes
Input (slave -> master) 150 up to 480 bytes
Listen Only Output (master -> slave) 255 0 bytes
Input (slave -> master) 150 up to 480 bytes
Bear in mind that the maximum length of the process data is always determined by the fieldbus with the shorter data length.
Example:
Ethernet/IP supports 480 bytes per direction.
PROFIBUS supports 244 bytes per direction.
In conjunction with Ethernet/IP / PROFIBUS this means that 244 bytes are transmitted and updated cyclically.
Size
Configuration
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5.2 Address Assignment

Setting IP Address
With the 8-pin address switch you can set the IP address of the Gateways.
You can set values in binary format between 0-255.
Configuration
Assigning IP Address manually:
Receiving IP Address from the DHCP Server
Setting IP Address using the Master Software
◦ Set any address between 1-254
ð The gateway component uses the address 192.168.1.X with the net
mask 255.255.255.0 and gateway 192.168.1.1
◦ Open the website http://192.168.1.X
◦ Log on:
Logon data for the initial logon : User: Admin Password: 1701
◦ Click on the "Change Configuration" button
◦ Set the IP address required
◦ Confirm your entry by pressing the "Apply" button
◦ Set all address switches to "0"
◦ Restart the gateway component by switching this off and then on again.
ð The set IP address is now used.
◦ Set the value "255" (all switches in the direction of the numbers) to
activate the DHCP mode.
ð Assign the IP address automatically from the DHCP server.
◦ Set the value "0" (all switches to "Off")
ð The gateway component uses the IP address that was last set using
the software.
◦ You can change this IP address at any time via the EtherNet/IP-
protocol or website.
◦ Restart the gateway component by switching this off and then on again.
ð The set IP address is now used.
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5.3 Ethernet/IP Configuration

Standard Objects
The following objects are available to you for addressing the process data:
– Identity Object, Class Code: 01 Hex
– Message Router, Class Code: 02 Hex
– Assembly Object, Class Code: 04 Hex
– Connection Manager Object, Class Code: 06 Hex
– TCP/IP Interface Object, Class Code: F5 Hex
– Ethernet Link Object, Class Code: F6 hex
– Device Level Ring, Class Code: 47 Hex
– Quality of Service, Class Code: 48 Hex
These objects comply with the ODVA standard. You can find further information in the specifications for EtherNet/IP. You can find details about the implemented attributes from the EDS file provided.
Device Specific Objects
Configuration
Fieldbus Input Data, Class Code: A0 hex
Fieldbus Output Data, Class Code: A1 hex
The following objects are device specific. You can use these to access the input and output data acyclically.
– Fieldbus Input Data, Class Code: A0 Hex
– Fieldbus Output Data, Class Code: A1 Hex
You can use this object to read data that was sent from the gateway component to the EtherNet/IP-Master. This data originates from the Master of the other gateway components.
You can use this object to write data that was sent from the EtherNet/ IP-Master to the gateway component. This data is copied to the input data area of the other gateway component. The Master of the other gateway component can read this data there.
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5.4 Configuration of Modbus TCP

You can also use these gateway components as a protocol converter for Modbus TCP.
Functions
The following Modbus functions are implemented:
Function code Description
0x01 read coils 0x02 read discrete inputs 0x05 write single coil 0x0f write multiple coils 0x03 read holding registers 0x04 read input registers 0x06 write single register 0x10 write multiple registers 0x16 mask write register 0x17 read/write multiple registers
Register
The following registers are implemented in the gateway component:
Configuration
Address area Function Access
1-240 Input register, receives values of the partner
gateway component.
1025-1264 Input register, sends values to the partner
gateway component.
40001-40240 Input register, compatible with Siemens con-
trollers
30001-30240 Output register, compatible with Siemens con-
trollers
4097 Status of the partner gateway component Read only
0x01 Hardware is initialized and checked 0x02 Connection to the partner gateway
component is checked 0x03 The opposite side is detected 0x04 Interface to the partner gateway com-
ponent functions.
Read only
Read/write
Read only
Read/write
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Address area Function Access
4098 Status of the other fieldbus Read only
0x00 Fieldbus not connected. Check all
connections 0x01 Fieldbus connected, no data commu-
nication. Check whether an IP ad-
dress is set 0x02 Gateway component configured, no
data communication 0x03 Cyclical data exchange
Configuration
Input Register
Siemens controllers use 2 predefined address areas. Therefore, the input and output registers can each be accessed via 2 addresses, one KUNBUS address and one Siemens address. Both addresses address the same memory cell, however. No separate address areas is defined for the input register. Read the holding register with function code 0x04.
Register area for bit by bit access (coils)
You can also access the input and output data area bit by bit via coils. The same memory is addressed with the coils as with the registers.
Example: Coils 1-16 correspond to the bits in register 1,
Coils 17-32 correspond to the bits in register 2.
Address area Use Access Meaning
1 - 3840 Input Bits Read only Values that the other gateway component
supplies.
16385 - 20224 Output Bits Read/write Values that are supplied to the other gateway
component
Discrete Inputs
No separate address area is defined for discrete inputs. Read the coils with function code 0x02.
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6 Technical Data

6.1 Technical Data

Dimensions
Width 22.5 mm Height 96 mm Depth 110.4 mm Weight 90 g
Electrical data
Power supply 24 V DC Power consumption during operation
(cyclical data exchange) Status display LED
Environmental conditions
Ambient temperature 0 – 60 °C Storage temperature - 25 – 60 °C Humidity 93 % (at 40 °C) Condensing Not allowed Protection class
Control cabinet
Housing
Terminal area
Technical Data
100mA
IP54
IP20
IP20
Assembly data
DIN rail 35 x 7.5 mm Height 96 mm Depth 110.4 mm
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Illustration7: Side dimensions
Technical Data
Illustration8: Front dimensions
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