SEW-Eurodrive DHR41B User manual

Drive Technology \ Drive Automation \ System Integration \ Services
MOVI-PLC
®
advanced DHR41B Controller
EtherNet/IP, Modbus/TCP and
PROFINET IO Fieldbus Interfaces
Manual
Edition 03/2009
16730410 / EN

SEW-EURODRIVE – Driving the world

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 3
1 General Notes......................................................................................................... 6
1.1 How to use this documentation...................................................................... 6
1.2 Structure of the safety notes .......................................................................... 6
1.3 Rights to claim under limited warranty ........................................................... 7
1.4 Exclusion of liability........................................................................................ 7
1.5 Copyright........................................................................................................ 7
2 Safety Notes ........................................................................................................... 8
2.1 Other applicable documentation .................................................................... 8
2.2 Bus systems................................................................................................... 8
2.3 Safety functions ............................................................................................. 8
2.4 Hoist applications........................................................................................... 8
2.5 Product names and trademarks..................................................................... 8
2.6 Disposal ......................................................................................................... 8
3 Preface .................................................................................................................... 9
3.1 Content of this manual ................................................................................... 9
3.2 Characteristics ............................................................................................... 9
3.2.1 Process data exchange ...................................................................... 9
3.2.2 Parameter access ............................................................................... 9
3.2.3 Monitoring functions .......................................................................... 10
4 Assembly and Installation Notes for Ethernet................................................... 11
4.1 Connecting MOVI-PLC®advanced DHR41B to an Ethernet network ......... 11
4.2 Pin assignment of X30-1 and X30-2 ............................................................ 11
4.3 Shielding and routing bus cables ................................................................. 12
4.4 The integrated Ethernet switch .................................................................... 13
4.5 Setting the DIP switches .............................................................................. 14
4.6 Status LED of the DHR41B option............................................................... 15
4.6.1 Status LEDs in EtherNet/IP and Modbus/TCP operation .................. 15
4.6.2 Status LEDs in PROFINET operation ............................................... 16
4.6.3 Link/Activity LEDs ............................................................................. 17
4.7 TCP/IP addressing and subnetworks........................................................... 18
4.8 Setting the IP address parameters............................................................... 20
4.9 Procedure for unit replacement.................................................................... 22
5 Configuration and Startup (EtherNet/IP)............................................................ 23
5.1 Validity of the EDS file for DHR41B ............................................................. 23
5.2 Configuring the master (EtherNet/IP scanner)............................................. 24
5.3 Settings in MOVI-PLC®advanced DHR41B ................................................ 27
5.3.1 Process data configuration ............................................................... 27
5.3.2 Status of the fieldbus interface ......................................................... 27
5.4 Configuration examples in RSLogix 5000.................................................... 28
5.4.1 MOVI-PLC®advanced DHR41B with 16 PD data exchange ............ 28
5.4.2 Access to the parameters of MOVI-PLC®advanced DHR41B ......... 31
5.4.3 Access to unit parameters of downstream units ............................... 36
6 The Ethernet Industrial Protocol (EtherNet/IP) ................................................ 37
6.1 Introduction .................................................................................................. 37
6.2 Process data exchange ............................................................................... 37
6.3 CIP object directory...................................................................................... 38
6.4 Return codes for parameter setting via explicit messages........................... 51

4Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
7 Configuration and Startup (Modbus/TCP) ......................................................... 55
7.1 Unit description file for Modbus/TCP............................................................ 55
7.2 Configuration of the master (Modbus scanner)............................................ 55
7.3 Settings in MOVI-PLC®advanced DHR41B ................................................ 58
7.3.1 Process data configuration ............................................................... 58
7.3.2 Status of the fieldbus interface ......................................................... 58
7.4 Configuration examples in PL7 PRO ........................................................... 59
7.4.1 MOVI-PLC®advanced DHR41B with 16 PD data exchange ............ 59
7.5 Examples for data exchange via Modbus/TCP............................................ 61
7.5.1 Writing and reading process data ..................................................... 62
7.5.2 Parameter access ............................................................................. 64
8 The Modbus Protocol (Modbus/TCP) ................................................................. 66
8.1 Introduction .................................................................................................. 66
8.1.1 Mapping and addressing .................................................................. 66
8.1.2 Services (function codes) .................................................................. 67
8.1.3 Access .............................................................................................. 67
8.2 Protocol structure......................................................................................... 68
8.2.1 Header .............................................................................................. 68
8.2.2 Service FC3 Read holding registers ................................................ 69
8.2.3 Service FC16 Write multiple registers .............................................. 70
8.2.4 Service FC23 Read/write multiple registers ..................................... 71
8.2.5 Service FC43 Read device identification ......................................... 72
8.3 Connection management............................................................................. 73
8.3.1 Sending process output data (requesting a controlling connection) . 73
8.3.2 Dropping connections ....................................................................... 74
8.3.3 Timeout monitoring ........................................................................... 74
8.4 Parameter access via Modbus/TCP............................................................. 75
8.4.1 Procedure with FC16 and FC3 ......................................................... 75
8.4.2 Procedure with FC23 ........................................................................ 75
8.4.3 Protocol structure .............................................................................. 76
8.4.4 MOVILINK®parameter channel ........................................................ 77
8.5 Fault codes (exception codes) ..................................................................... 78
9 Fault Diagnostics for Operation on EtherNet/IP and Modbus/TCP ................. 79
9.1 Diagnostic sequence.................................................................................... 79
10 PROFINET IO Configuration................................................................................ 81
10.1 Configuring the PROFINET IO controller..................................................... 81
10.1.1 Installing the GSD file ...................................................................... 81
10.1.2 Assigning a PROFINET device name .............................................. 82
10.2 Configuring the PROFINET connection for MOVI-PLC®
advanced DHR41B ...................................................................................... 84
10.2.1 Creating a new project ..................................................................... 84
10.2.2 Configuring a station ........................................................................ 86
10.3 PROFINET configuration with topology detection........................................ 88
10.3.1 Introduction ...................................................................................... 88
10.3.2 Configuring the PROFINET topology ............................................... 89
10.3.3 Changing the port properties ........................................................... 91
10.3.4 Topology diagnostics ....................................................................... 93
10.3.5 Port statistics .................................................................................... 94
10.4 PROFINET diagnostics alarms .................................................................... 96
10.4.1 Switching on the diagnostic alarms .................................................. 96
10.4.2 Determining the cause of a fault ...................................................... 97

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 5
11 Operating Behavior (PROFINET IO).................................................................... 98
11.1 Process data exchange with MOVI-PLC®advanced DHR41B.................... 98
11.2 Settings in MOVI-PLC®advanced DHR41B .............................................. 100
11.2.1 Status of the PROFINET fieldbus interface .................................... 100
11.3 Parameterization via PROFIdrive data record 47 ...................................... 102
11.3.1 Introduction to PROFINET data records ........................................ 102
11.3.2 Structure of the PROFINET parameter channel ............................ 105
11.3.3 Parameter setting procedure via data record 47 ............................ 106
11.3.4 Controller processing sequence ..................................................... 107
11.3.5 Addressing downstream inverters .................................................. 108
11.3.6 MOVILINK®parameter requests .................................................... 109
11.3.7 PROFIdrive parameter requests .................................................... 114
12 Error Diagnostics on PROFINET....................................................................... 119
12.1 Diagnostic procedure ................................................................................. 119
12.1.1 Diagnostics problem 1: MOVI-PLC®
advanced DHR41B not working on PROFINET IO ......................... 120
12.1.2 Diagnostics problem 2: No process data exchange
with the I/O controller ...................................................................... 121
13 Appendix............................................................................................................. 122
13.1 Parameter access via EtherNet/IP to downstream units............................ 122
13.2 Parameter access via Modbus/TCP or PROFINET to downstream units.. 123
13.3 Parameter access via engineering interface to downstream units............. 124
13.4 Glossary..................................................................................................... 125
14 Index.................................................................................................................... 126

6Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
1How to use this documentation
General Notes
MOVI-PLC¬???/IP, Modbus/TCP und PROFINET IO
1 General Notes
1.1 How to use this documentation
The documentation is an integral part of the product and contain important information
on operation and service. The documentation is written for all employees who assemble,
install, startup, and service this product.
1.2 Structure of the safety notes
The safety notes in this documentation are designed as follows:
Pictogram SIGNAL WORD
Type and source of danger.
Possible consequence(s) if disregarded.
• Measure(s) to prevent the danger.
Pictogram Signal word Meaning Consequences if
disregarded
Example:
General danger
Specific danger,
e.g. electric shock
DANGER Imminent danger Severe or fatal injuries
WARNING Possible dangerous situation Severe or fatal injuries
CAUTION Possible dangerous situation Minor injuries
NOTICE Possible damage to property Damage to the drive system or its environ-
ment
TIP Useful information or tip.
Simplifies the handling of the
drive system.

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 7
1
Rights to claim under limited warranty
General Notes
1.3 Rights to claim under limited warranty
A requirement of fault-free operation and fulfillment of any rights to claim under limited
warranty is that you adhere to the information in the documentation. Read the documen-
tation before you start working with the unit!
Make sure that the documentation is available to persons responsible for the system and
its operation as well as to persons who work independently on the unit. You must also
ensure that the documentation is legible.
1.4 Exclusion of liability
You must observe this publication and the documentation of the connected units from
SEW-EURODRIVE to ensure safe operation and to achieve the specified product char-
acteristics and performance requirements. SEW-EURODRIVE assumes no liability for
injury to persons or damage to equipment or property resulting from non-observance of
the operating instructions. In such cases, any liability for defects is excluded.
1.5 Copyright
© 2008 - SEW-EURODRIVE. All rights reserved.
Copyright law prohibits the unauthorized duplication, modification, distribution, and use
of this document, in whole or in part.

8Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
2Other applicable documentation
Safety Notes
2 Safety Notes
2.1 Other applicable documentation
Note also the following documentation:
• 'MOVI-PLC ®advanced DHE41B/DHF41B/DHR41B Controller' manual
• 'MOVI-PLC®Programming in the PLC Editor' manual
The following publications and documents apply to the connected units:
• Operating instructions of the units
(Units are, for example, MOVIDRIVE®B, MOVITRAC®B, MOVIAXIS®)
• For units with functional safety technology, also the respective
'Safe Disconnection - Conditions' manuals
2.2 Bus systems
MOVI-PLC®advanced DHR41B supports various bus systems. A bus system makes it
is possible to adapt frequency inverters to the particulars of the machinery within wide
limits. As with all bus systems, there is a danger of invisible, external (as far as the in-
verter is concerned) modifications to the parameters which give rise to changes in the
unit behavior. This may result in unexpected, though not uncontrolled, system behavior.
2.3 Safety functions
The MOVIDRIVE®MDX60B/61B and MOVITRAC®B inverters may not perform safety
functions without higher-level safety systems. Use higher-level safety systems to ensure
protection of equipment and personnel. For safety applications, ensure that the informa-
tion in the following publications is observed: 'Safe Disconnection for MOVIDRIVE®
MDX60B/61B, MOVITRAC®B'.
2.4 Hoist applications
MOVIDRIVE®MDX60B/61B and MOVITRAC®B are not designed for use as a safety
device in hoist applications.
Use monitoring systems or mechanical protection devices as safety equipment to avoid
possible damage to property or injury to people.
2.5 Product names and trademarks
The brands and product names in this manual are trademarks or registered trademarks
of the titleholders.
2.6 Disposal
Observe the applicable national regulations.
?Dispose of the following materials separately in accordance with the country-specific
regulations in force, as:
• Electronics scrap
• Plastic
• Sheet metal
• Copper

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 9
3
Content of this manual
Preface
3 Preface
3.1 Content of this manual
This user manual describes:
• The startup procedure for MOVI-PLC®advanced DHR41B on the fieldbus systems
EtherNet/IP, Modbus/TCP and PROFINET IO.
• The configuration of the EtherNet/IP master with EDS files.
• The configuration of the Modbus/TCP master.
• The configuration of the PROFINET master using GSDML files.
The creation of IEC programs or the connection of SEW drives to the system bus inter-
faces of MOVI-PLC®is not described.
3.2 Characteristics
The powerful, universal fieldbus interfaces of the DHR41B option enable a connection
to higher-level automation systems via EtherNet/IP, Modbus/TCP and PROFINET IO.
3.2.1 Process data exchange
The MOVI-PLC®advanced DHR41B controller offers digital access to a special data
range via the Industrial Ethernet interface. This data range is evaluated by IEC 61131-3
as process input and output data to a higher-level controller. The meaning of the trans-
ferred data depends on the IEC program.
3.2.2 Parameter access
This parameter data exchange enables you to implement applications for which all im-
portant parameters are stored in the higher-level programmable controller, so that there
is no need to set parameters manually in the MOVI-PLC®advanced DHR41B.
In EtherNet/IP operation, the parameters of the inverter are set by the controller solely
via explicit messages.
In Modbus/TCP operation, the controller can access the parameters via the 8 byte
MOVILINK®parameter channel.
In PROFINET operation, two parameter access options are available:
• The PROFIdrive data record 47 offers access to all unit information also in
PROFINET operation
• The PROFIBUS DP-V1 parameter mechanisms offers universal access to all unit in-
formation.

10 Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
3Characteristics
Preface
3.2.3 Monitoring functions
Using a fieldbus system requires additional monitoring functions, for example, time mon-
itoring of the fieldbus (fieldbus timeout) or rapid stop concepts. For example, you can
adapt the monitoring functions specifically to your application in the IEC program. You
can determine, for instance, which fault responses should be triggered in the event of a
bus error. For many applications, a rapid stop function is useful. However, you can also
freeze the last setpoints so that the drive continues to operate with the most recently val-
id setpoints. As the range of functions for the control terminals is also available in field-
bus mode, you can continue to implement rapid stop concepts using the terminals of
MOVI-PLC®advanced DHR41B, irrespective of the fieldbus used.

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 11
4
Connecting MOVI-PLC® advanced DHR41B to an Ethernet network
Assembly and Installation Notes for Ethernet
4 Assembly and Installation Notes for Ethernet
Only the connection to Ethernet networks via X30:1 and X30:2 is described in this chap-
ter. Connection and functions via X37 (engineering) are described in the "MOVI-PLC®
advanced DHE41B/DHF41B/DHR41B" manual.
4.1 Connecting MOVI-PLC®advanced DHR41B to an Ethernet network
4.2 Pin assignment of X30-1 and X30-2
Use prefabricated, shielded RJ45 plug connectors compliant with IEC 11801 edition 2.0,
category 5.
Front view
MOVI-PLC®
advanced DHR41B
controller
Designation
LED
DIP switches
Terminal
Function
64249AXX
LED
L14
L13
L14
L13
L12
L11
In EtherNet/IP and Modbus/TCP operation:
MODULE STATUS
NETWORK STATUS
In PROFINET operation:
RUN
BUS FAULT
Reserved
Reserved
X30-1: Ethernet connection
LED Link (green)
LED Activity (yellow)
X30-2: Ethernet connection
LED Link (green)
LED Activity (yellow)
DIP switches 20= ON Resets the address parameters to their default values and
deactivates DHCP
• IP address: 192.168.10.4
• Subnet mask: 255.255.255.0
• Gateway: 192.168.10.4
21= ON
21= OFF
EtherNet/IP and Modbus/TCP protocol is active
PROFINET protocol is active
X38: CAN for safety-rele-
vant communication
X38:1
X38:2
X38:3
Reserved
Reserved
Reserved
DHR41B
2
2
0
1
X30-1
X30-2
L14
L13
ON
1
2
3
X38
L12
L11
54174AXX
A View from front BView from back
[1] Pin 1 TX+ Transmit Plus [2] Pin 2 TX- Transmit Minus
[3] Pin 3 RX+ Receive Plus [6] Pin 6 RX- Receive Minus
[3] [2] [1]
236
1
[6]
AB

12 Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
4Shielding and routing bus cables
Assembly and Installation Notes for Ethernet
DHR41B - Ethernet connection
To connect DHR41B to the Ethernet, connect the Ethernet interface X30-1 or X30-2
(RJ45 plug connector) to the other network stations using a category 5, class D twisted-
pair cable in accordance with IEC 11801 edition 2.0. The integrated switch provides sup-
port for realizing a line topology and offers auto crossing functions.
4.3 Shielding and routing bus cables
Only use shielded cables and connection elements that also meet the requirements of
category 5, class 2 in compliance with IEC 11801 edition 2.0.
Correct shielding of the bus cable attenuates electrical interference that can occur in in-
dustrial environments. The following measures ensure the best possible shielding:
• Manually tighten the mounting screws on the connectors, modules, and equipotential
bonding conductors.
• Use only connectors with a metal housing or a metalized housing.
• Connect the shielding in the connector over a wide surface area.
• Apply the shielding of the bus cable on both ends.
• Route signal and bus cables in separate cable ducts. Do not route them parallel to
power cables (motor leads).
• Use metallic, grounded cable racks in industrial environments.
• Route the signal cable and the corresponding equipotential bonding close to each
other using the shortest possible route.
• Avoid using plug connectors to extend bus cables.
• Route the bus cables closely along existing grounding surfaces.
TIPS
• According to IEC 802.3, the maximum cable length for 10/100 MBd Ethernet
(10BaseT / 100BaseT), e.g. between two network stations, is 100 m.
• We recommend that you do not directly connect non-SEW end devices to the
DHR41B option in order to minimize the load on the end devices in EtherNet/IP net-
works caused by undesired multicast data traffic. Connect non-SEW devices via a
network component that supports the IGMP snooping functionality (e.g. managed
switch).
CAUTION
In case of fluctuations in the ground potential, a compensating current may flow via the
bilaterally connected shield that is also connected to the protective earth (PE). Make
sure you supply adequate equipotential bonding according in accordance with relevant
VDE regulations in such a case.

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 13
4
The integrated Ethernet switch
Assembly and Installation Notes for Ethernet
4.4 The integrated Ethernet switch
You can use the integrated Ethernet switch to achieve line topologies known from the
fieldbus technology. Other bus topologies, such as star or tree, are also possible. Ring
topologies are not supported.
Auto-crossing The two ports leading out of the Ethernet switch have auto-crossing functionality. This
means that they can use both patch and cross-over cables to connect to the next Ether-
net station.
Auto-negotiation The baud rate and the duplex mode is negotiated by both Ethernet nodes when estab-
lishing the connection. For this purpose, both Ethernet ports of the EtherNet/IP connec-
tion support an auto-negotiation functionality and work with a baud rate of either
100 Mbit or 10 Mbit in full duplex or half-duplex mode.
Notes on multi-
cast handling
• The integrated Ethernet switch does not provide a filter function for Ethernet multi
cast telegrams. Multicast telegrams that are usually sent from the adapters
(DHR41B) to the scanners (PLC) in EtherNet/IP networks are passed on to all switch
ports.
• IGMP Snooping (e.g. Managed Switches) is not supported.
• SEW-EURODRIVE therefore recommends to connect the DHR41B option in Ether-
Net/IP networks only with network components that support IGMP snooping (e.g.
managed switch) or that have safety mechanisms integrated against excess multi-
cast load (e.g. units from SEW-EURODRIVE). Units that do not have this integrated
function can fail due to high network loads.
TIP
The number of Industrial Ethernet switches connected in line impacts on the telegram
run time. If a telegram passes through the units, the telegram runtime is delayed by the
Store & Forward function of the Ethernet switch:
• for a telegram length of 64 bytes by approximately 10 μs (at 100 Mbit/s)
• for a telegram length of 1500 bytes by approximately 130 μs (at 100 Mbit/s)
This means that the more units a telegram has to pass through, the higher the telegram
runtime is.

14 Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
4Setting the DIP switches
Assembly and Installation Notes for Ethernet
4.5 Setting the DIP switches
20(Def IP) if the switch "20" is set to "1" (= right = ON), the following default IP address parameters
are set when the DC 24 V backup voltage is switched on.
• IP address: 192.168.10.4
• Subnet mask: 255.255.255.0
• Default gateway: 192.168.10.4
• P785 DHCP / Startup configuration: Saved IP parameters (DHCP is deactivated)
21(protocol) DIP switch "21" is used to set the protocol that is used for communication.
•2
1= "1" (= right = ON): The EtherNet/IP and Modbus TCP/IP fieldbus protocol is
active.
•2
1= "0" (= left = OFF): The PROFINET fieldbus protocol is active.
TIP
Before each change to the DIP switches, disconnect the MOVI-PLC®advanced
DHR41B control card from the voltage supply. The DIP switch settings are adopted
during initialization only.
64248AXX
DHR41B
2
2
0
1
ON

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 15
4
Status LED of the DHR41B option
Assembly and Installation Notes for Ethernet
4.6 Status LED of the DHR41B option
The LEDs of the DHR41B option card indicate the current status of the DHR41B option
and the fieldbus system. Depending on the set protocol, the LEDs have the following
meaning.
4.6.1 Status LEDs in EtherNet/IP and Modbus/TCP operation
The status of the fieldbus interface corresponding to the LED status is shown in
chapter 9.
LED L13
(NETWORK
STATUS)
The LED L13 (NETWORK STATUS) indicates the state of the fieldbus system.
LED L14
(MODULE
STATUS)
LED L14 (MODULE STATUS) indicates that the bus electronics are operating correctly.
64247AXX
DHR41B
L14
L13
States of the NET-
WORK STATUS
LED
Meaning
Off The DHR41B option does not yet have any IP parameters.
Flashing green/red The DHR41B option card performs an LED test.
Flashing green There is no controlling IO connection.
Green There is a controlling EtherNet/IP or Modbus/TCP connection.
Red Conflict detected in the assigned IP addresses. Another station in the network uses
the same IP address.
Flashing red The previously established controlling IO connection is in timeout status. The status
is reset by restarting communication.
States of the MOD-
ULE STATUS LED
Meaning
Off The DHR41B option card is not supplied with voltage or is defective
Flashing green • If the NETWORK STATUS LED is off at the same time, the TCP/IP stack of the
DHR41B option card will be started. If this status continues and DHCP is acti-
vated, the DHR41B option waits for data from the DHCP server.
• If the NETWORK STATUS LED is flashing green at the same time, the applica-
tion of the DHR41B option card is started.
Flashing green/red The DHR41B option card performs an LED test.
Green Indicates the standard operating state of the DHR41B option card
Red The DHR41B option card is in fault state.
Flashing red Conflict detected in the assigned IP addresses. Another station in the network uses
the same IP address.

16 Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
4Status LED of the DHR41B option
Assembly and Installation Notes for Ethernet
4.6.2 Status LEDs in PROFINET operation
LED L13
(BUS-FAULT)
The LED L13 (BUS FAULT) displays the status of the PROFINET.
LED L14 (RUN) LED L14 (RUN) indicates that the bus electronics are operating correctly.
Status of the
L13 LED
Cause of error Remedy
Off • PROFINET IO device is currently
exchanging data with the PROFINET
IO controller (Data Exchange).
-
Flashing
green
Flashing
green/red
• The flashing function in the PROFI-
NET IO controller configuration is acti-
vated to visually localize the stations.
-
Red • Connection to the PROFINET IO con-
troller has failed.
• PROFINET IO device does not detect
a link
• Bus interruption
• PROFINET IO controller is not in
operation
• Check the PROFINET connection of the
DHR41B option
• Check the PROFINET IO controller
• Check the cabling of your PROFINET
network
Yellow
Flashing yel-
low
• The STEP 7 hardware configuration
contains a module that is not permit-
ted.
• Switch the STEP 7 hardware configura-
tion to ONLINE and analyze the status
of the components of the slots in the
PROFINET IO device.
Status of the
L14 LED
Cause of error Remedy
Green • DHR41B hardware OK.
• Proper operation
-
Off • DHR41B is not ready for operation.
• Switch the unit on again. Consult SEW
Service if the error occurs again.
Red • Error in the DHR41B hardware
Flashing
green
• Hardware of the DHR41B does not
boot up.
Flashing yel-
low
• Switch the unit on again. Set default IP
address parameters via DIP switch 'S1'.
Consult SEW Service if the error occurs
again.
Yellow • Switch the unit on again. Consult SEW
Service if the error occurs again.

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 17
4
Status LED of the DHR41B option
Assembly and Installation Notes for Ethernet
4.6.3 Link/Activity LEDs
The two LEDs Link (green) and Activity (yellow), integrated in the RJ45 plug connec-
tors (X30-1, X30-2), display the status of the Ethernet connection.
63365AXX
LED/status Meaning
Link/green There is an Ethernet connection.
Link/off There is no Ethernet connection.
Link/flashes Locating function of SEW Address Editor (see section 4.8)
Activity/
yellow
Data is currently being exchanged via Ethernet.
X30-1
X30-2
LED "Link"
LED "Activity"

18 Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
4TCP/IP addressing and subnetworks
Assembly and Installation Notes for Ethernet
4.7 TCP/IP addressing and subnetworks
Preface The settings for the address of the IP protocol are made using the following parameters:
• MAC address
• IP address
• Subnetwork mask
• Standard gateway
The addressing mechanisms and subdivision of the IP networks into sub-networks are
explained in this chapter to help you set the parameters correctly.
MAC address The MAC address (Media Access Controller) is the basis for all address settings. The
MAC address is a worldwide unique 6-byte value (48 bits) assigned to the Ethernet de-
vice. SEW Ethernet devices have the MAC address 00-0F-69-xx-xx-xx. The MAC ad-
dress is difficult to handle for larger networks. This is why freely assignable IP addresses
are used.
IP address The IP address is a 32 bit value that uniquely identifies a station in the network. An IP
address is represented by four decimal numbers separated by decimal points.
Example: 192.168.10.4
Each decimal number stands for one byte (= 8 bits) of the address and can also be rep-
resented using binary code (→following table).
The IP address comprises a network address and a station address (→following table).
The part of the IP address that denotes the network and the part that identifies the sta-
tion is determined by the network class and the subnetwork mask.
Station addresses cannot consist of only zeros or ones (binary) because they represent
the network itself or a broadcast address.
Network classes The first byte of the IP address determines the network class and as such represents
the division into network addresses and station addresses.
This rough division is not sufficient for a number of networks. They also use an explicit,
adjustable subnet mask.
Byte 1 Byte 2 Byte 3 Byte 4
11000000 . 10101000 . 00001010 . 00000100
Network address Station address
192.168.10 4
Value range Network class Complete network address
(Example) Meaning
Byte 1
0 ... 127 A 10.1.22.3 10 = Network address
1.22.3 = Station address
128 ... 191 B 172.16.52.4 172.16 = Network address
52.4 = Station address
192 ... 223 C 192.168.10.4 192.168.10 = Network address
4 = Station address

Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO 19
4
TCP/IP addressing and subnetworks
Assembly and Installation Notes for Ethernet
Subnet mask A subnet mask is used to divide the network classes into even finer sections. Like the
IP address, the sub-network mask is represented by four decimal numbers separated
by decimal points.
Example: 255.255.255.128
Each decimal number stands for one byte (= 8 bits) of the subnetwork mask and can
also be represented using binary code (see following table).
If you compare the IP addresses with the subnet masks, you see that in the binary rep-
resentation of the subnet mask all ones determine the network address and all the zeros
determine the station address (see following table).
The class C network with the address 192.168.10. is further subdivided into
255.255.255.128 using the subnetwork mask. Two networks are created with the ad-
dress 192.168.10.0 and 192.168.10.128.
The following station addresses are permitted in the two networks:
• 192.168.10.1 ... 192.168.10.126
• 192.168.10.129 ... 192.168.10.254
The network stations use a logical AND operation for the IP address and the subnetwork
mask to determine whether there is a communication partner in the same network or in
a different network. If the communication partner is in a different network, the standard
gateway is addressed for passing on the data.
Standard gateway The standard gateway is also addressed via a 32-bit address. The 32-bit address is rep-
resented by four decimal numbers separated by decimal points.
Example: 192.168.10.1
The standard gateway establishes a connection to other networks. In this way, a net-
work station that wants to address another station can use a logical AND operation with
the IP address and the subnet mask to determine whether the desired station is located
in the same network. If this is not the case, the station addresses the standard gateway
(router), which must be part of the actual network. The standard gateway then takes on
the job of transmitting the data packages.
If for the standard gateway, the same address is set as for the IP address, the standard
gateway is deactivated. The address of the standard gateway and the IP address must
be in the same subnet.
DHCP (Dynamic
Host Configura-
tion Protocol)
Instead of setting the three parameters IP address, subnetwork mask and standard
gateway manually, they can be assigned in an automated manner by a DHCP server in
the Ethernet network.
This means the IP address is assigned from a table, which contains the allocation of
MAC address to IP address.
Parameter P785 indicates whether the DHR41B option expects the IP parameters to be
assigned manually or via DHCP.
Byte 1 Byte 2 Byte 3 Byte 4
11111111 . 11111111 . 11111111 . 10000000
Byte 1 Byte 2 Byte 3 Byte 4
IP address decimal 192 . 168. . 10 . 129
binary 11000000 . 10101000 . 00001010 . 10000001
Subnetwork mask decimal 255 . 255 . 255 . 128
binary 11111111 . 11111111 . 11111111 . 10000000

20 Manual – MOVI-PLC® advanced DHR41B for EtherNet/IP, Modbus/TCP and PROFINET IO
4Setting the IP address parameters
Assembly and Installation Notes for Ethernet
4.8 Setting the IP address parameters
Initial startup The "DHCP" protocol (Dynamic Host Configuration Protocol) is the default setting for the
DHR41B option. This means that the option card expects its IP address parameters from
a DHCP server.
Once the DHCP server has been configured and the settings have been made for the
subnet mask and the standard gateway, the DHR41B option must be added to the as-
signment list of the DHCP server. During this process, the MAC ID of the DHR41B op-
tion is allocated a valid IP address.
Changing the IP
address parame-
ters after initial
startup
If the DHR41B was started using a valid IP address, you can also access the IP address
parameters via the Ethernet interface.
There are various ways to change the IP address parameters via Ethernet:
• Using the MOVITOOLS®MotionStudio software
• Using the EtherNet/IP TCP/IP interface object ( see section 'EtherNet/IP CIP object
directory')
• Using the SEW Address Editor
In addition, you can also change the IP address parameters via the other interface of
DHR41B.
If the IP address parameters are assigned to the option DHR41B via a DHCP server,
you can only change the parameters by adjusting the settings of the DHCP server.
The options listed above for changing the IP address parameters only come into effect
once the supply voltages (DC 24 V) have been switched off and back on again.
TIP
Rockwell Automation provides a DHCP server free-of-charge on their homepage. The
tool is known as "BOOTP Utility" and can be downloaded from the following website:
http://www.ab.com/networks/bootp.html.
TIP
The configured IP address parameters are permanently adopted into the parameter
set if DHCP is deactivated after the IP address has been assigned.