Setup and Configuration of a
Redundancy via PRP and HSR
SCALANCE X204 RNA, CP 443-1 RNA, SOFTNET-IE RNA
Application Description September 2013
Applications & Tools
Answers for industry.
Warranty and Liability
Warranty and Liability
Note
The Application Examples are not binding and do not claim to be complete
regarding the circuits shown, equipping and any eventuality. The application
examples do not represent customer-specific solutions. You are responsible for
ensuring that the described products are used correctly. These Application
Examples do not relieve you of your responsibility to use safe practices in
application, installation, operation and maintenance. When using these
application examples, you recognize that we cannot be made liable for any
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application example and other Siemens publications – e.g. catalogs – the
contents of the other documents have priority.
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Any claims against us – based on whatever legal reason – resulting from the use of
the examples, information, programs, engineering and performance data etc.,
described in this application example will be excluded. Such an exclusion will not
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Caution
The functions and solutions described in this entry are mainly limited to the
realization of the automation task. Please furthermore take into account that
corresponding protective measures have to be taken in the context of industrial
security when connecting your equipment to other parts of the plant, the enterprise
network or the Internet. Further information can be found under the Entry ID
50203404.
http://support.automation.siemens.com/WW/view/en/50203404
Siemens Industry Online Support
This document is an article from the Siemens Industry Online Support. The
following link takes you directly to the download page of this document:
http://support.automation.siemens.com/WW/view/en/787909453
RNA
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Table of Contents
Table of Contents
Warranty and Liability .............................................................................................. 2
1
2
Copyright
Siemens AG 2013 All rights reserved
3
4
5
6
Task................................................................................................................. 5
1.1
Overview ........................................................................................... 5
1.2
Automation task ................................................................................. 5
Solution........................................................................................................... 7
2.1
Approach with network redundancy ................................................... 7
2.2
Approach via media redundancy ........................................................ 9
2.3
2.3.1
2.3.2
2.3.3
Description of the core functionality.................................................. 10
Realizing a redundancy ................................................................... 10
Demonstration of the redundancy .................................................... 10
Diagnosing the redundancy ............................................................. 10
2.4
2.4.1
2.4.2
Hardware and software components ................................................ 11
Validity ............................................................................................ 11
Components used ........................................................................... 11
2.5
Alternative solutions......................................................................... 13
Basics of (bumpless) Redundancy .............................................................. 14
3.1
3.1.1
3.1.2
3.1.3
3.1.4
The redundancy protocol PRP ......................................................... 14
Description ...................................................................................... 14
Setting up a redundancy network with PRP...................................... 15
Communication with PRP ................................................................ 17
Modifying the Ethernet data packet .................................................. 18
3.2
3.2.1
3.2.2
3.2.3
3.2.4
The redundancy protocol HSR ......................................................... 19
Description ...................................................................................... 19
Setting up a redundancy network with HSR ..................................... 20
Communication with HSR ................................................................ 21
Modifying the Ethernet data packet .................................................. 22
3.3
3.3.1
3.3.2
Combination of PRP and HSR ......................................................... 23
Description ...................................................................................... 23
Setting up a redundancy HSR-PRP connection................................ 23
3.4
The SIMATIC NET product portfolio for RNA.................................... 24
3.5
3.5.1
3.5.2
3.5.3
Diagnostic options ........................................................................... 28
Overview ......................................................................................... 28
Statistic displays .............................................................................. 29
SOFTNET-IE RNA diagnostic .......................................................... 31
Configuration and Settings .......................................................................... 35
4.1
Configuring the CP 443-1 RNA ........................................................ 35
4.2
Configuring the SOFTNET-IE RNA .................................................. 37
4.3
Configuring the SCALANCE X204 (HSR) ......................................... 38
Installation .................................................................................................... 39
5.1
Hardware installation ....................................................................... 39
5.2
5.2.1
5.2.2
Software installation......................................................................... 41
Standard software ........................................................................... 41
Application software......................................................................... 41
Starting the Application ............................................................................... 42
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Table of Contents
7
8
Requirements .................................................................................. 42
6.2
6.2.1
6.2.2
Addressing the modules .................................................................. 42
Overview of IP addresses ................................................................ 42
Assigning the IP address ................................................................. 43
6.3
Loading the controllers .................................................................... 47
Operating the Application ............................................................................ 48
7.1
Requirements .................................................................................. 48
7.2
Demonstrating the redundancy ........................................................ 48
7.3
Diagnostic at PRP ........................................................................... 49
7.4
Diagnostic at HSR ........................................................................... 51
Related Literature ......................................................................................... 52
8.1
Bibliography..................................................................................... 52
8.2
Internet links .................................................................................... 53
History .......................................................................................................... 53
Copyright
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9
6.1
RNA
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1 Task
1
Task
1.1
Overview
Introduction
The enhanced level of automation of industrial plants in order to raise productivity
and quality increases the dependency on the availability of automation systems at
the same. Failure of an automation system can cause high costs due to production
failure and downtime caused by, for example, the failure of a CPU or of the network
connection, e.g. by wire break.
To counteract here, the implementation of a redundancy process which (almost)
guarantees one hundred percent plant availability, even in the event of an error, is
very important. There are numerous redundancy options with various approaches
and implementations. What mechanism is used is mainly determined by the
application.
1.2
Automation task
If Ethernet is used in automation, specific protocols and appropriate hardware have
to ensure the availability. Time and security critical applications in plants (e.g. in
energy distribution, power plant and ship automation, tunnel construction) do not
tolerate any downtime. The implementation of a redundancy without changeover
(bumpless) has highest priority here.
The automation task consists in allowing bumpless redundancy for a
sophisticated industrial application.
Copyright
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General
RNA
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1 Task
Overview
The graphic below shows the principle of the automation task:
Figure 1-1
Control level
Redundant
connection
Copyright
Siemens AG 2013 All rights reserved
Failsave, industrial
plant network
Production cell A
Production cell B
Description and requirements
To guarantee full network functionality despite the failure of components or the
connection, an automation plant is to be equipped and configured with a
redundancy process. This is to prevent that a single fault brings the plant to a halt
and ensures that the communication remains intact.
In all redundantly-designed systems monitoring has an important role. A failure
means the loss of redundancy and has to be detected, localized and removed,
before a second failure occurs. This is why various diagnostic options have to be
implemented in the automation plant.
The requirements for the automation task are as follows:
In the event of a failure of a component or network connection, data
communication has to continue interruption-free.
The application has to continue to operate without restriction in the event of an
error,
The network must not be hindered or overloaded by double data packets or
loop formation.
Transparency, compatibility and investment security must be guaranteed by
the use of standardized protocols.
In the event of an error, the cause of the error has to be detected and localized
quickly.
RNA
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2 Solution
2
Solution
To implement the automation task and to fulfill the mentioned requirements, this
application provides two approaches:
approach with network redundancy
approach with media redundancy
2.1
Approach with network redundancy
Schematic layout
The following figure gives a schematic overview of the most important components
of the solution:
Figure 2-1
Siemens AG 2013 All rights reserved
Control level
PG with
SOFTNET-IE RNA V8.2
Copyright
Redundant, LAN A
industrial plant
network
LAN B
SCALANCE
X204RNA
EEC (PRP)
Production cell C
S7-300
Production cell B
Production cell A
SCALANCE
X204RNA
(PRP)
S7-400 with
CP 443-1 RNA
Structure
A redundant network (RNA; Redundant Network Access) is setup by two separate
network topologies. Core elements are the connecting components:
SIMATIC S7-400 with a CP 443-1 RNA
Software package SIMATIC NET SOFTNET-IE RNA
SCALANCE X204RNA EEC (PRP)
SCALANCE X204RNA (PRP)
RNA
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2 Solution
All these devices are provided with two RNA interfaces for connecting the two
independent networks (LAN A and LAN B).
Terminal devices or production cells that do not support the redundancy process
(in this example the S7-300 station) can be connected behind a SCALANCE X204RNA.
The redundant, parallel network structure is on the basis of the standardized PRP
(Parallel Redundancy Protocol) mechanism in the IEC 62439-3.
Advantages / customer benefits
Very high plant availability due to parallel data transfer via separate network
structures.
Application also in time-critical applications due to bumpless switchover.
High flexibility in network setup since network structures can be designed as
line, tree, star and ring.
Possible integration into network management systems.
Copyright
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Fast commissioning without mandatory configuration.
RNA
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2 Solution
2.2
Approach via media redundancy
Schematic layout
The following figure gives a schematic overview of the most important components
of the solution:
Figure 2-2
SCALANCE
X204RNA (HSR)
PG
Production cell B
Control level
S7-400
SCALANCE
X204RNA (HSR)
S7-300
SCALANCE
X204RNA (HSR)
Production cell C
Copyright
Production cell A
Siemens AG 2013 All rights reserved
Redundant,
industrial plant
network
SCALANCE
X204RNA
EEC(HSR)
Structure
A redundant communication structure in the shape of a ring topology is setup.
Nodes of the redundancy are the following components:
SCALANCE X204RNA EEC (HSR)
SCALANCE X204RNA (HSR)
All these devices are provided with two RNA interfaces to connect network
segments to the ring structure.
The redundant ring structure is on the basis of the standardized HSR (Highavailability Seamless Redundancy Protocol) mechanism in the IEC 62439-3.
RNA
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2 Solution
Advantages / customer benefits
Very high plant availability due to parallel data transfer in ring-shaped network
structures.
Application also in time-critical applications due to bumpless switchover.
Possible integration into network management systems.
Fast commissioning without mandatory configuration.
2.3
Description of the core functionality
2.3.1
Realizing a redundancy
Copyright
Siemens AG 2013 All rights reserved
The core function in this application is the RNA (Redundant Network Access)
concept.
RNA at Siemens Industry stands for hardware and software for the realization of
redundancy solutions. It includes the standardized redundancy processes PRP and
HSR in IEC 62439-3. These processes are protocols for compensating
cable/module failures in the network.
The big advantage of PRP and HSR is the interruption-free switchover which
avoids any switchover time in the event of an error and thus offers the highestpossible availability.
Basis for this is the double transmission of frames in two directions. In fault-free
operation the receiver thus receives two identical data packets. The redundancy
protocol ensures that it only uses the first data packet and rejects the second.
If only one packet is received, the receiver knows that a failure has occurred on a
different path and responds accordingly.
2.3.2
Demonstration of the redundancy
To demonstrate the redundancy function this application includes a small example
scenario.
A S7 communication is setup between the two controllers (S7-300 and S7-400) via
which data is exchanged. This includes the current time which the S7-300 station
sends to the partner station (S7-400).
In order to demonstrate that this data exchange is also guaranteed in the event of
an error, a network error is simulated by removing a connecting cable.
2.3.3
Diagnosing the redundancy
The application furthermore describes how the redundancy nodes (partly after
according configuration) (can) respond to the detection of the error.
Error display via LEDs (for hardware components)
Statistic display in web-based management of the components
Visualization through redundancy status display (for software components)
Network information via the Simple Network Management Protocol (SNMP)
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2 Solution
2.4
Hardware and software components
2.4.1
Validity
This application is valid for
STEP 7 V5.5 SP3
S7-300
S7-400
2.4.2
Components used
The application was set up with the following components. The first column
illustrates which components are required for what approach.
Hardware components
Table 2-1
PRP, HSR
HSR
PRP
Copyright
Siemens AG 2013 All rights reserved
Component
No.
Order number
CPU 416-3 PN/DP
1
6ES7416-3ER05-0AB0
PS 407 10A
1
6ES7407-0KA00-0AA0
PS 307 5A
1
6ES7307-1BA01-0AA0
CPU 317-2 PN/DP
1
6ES7317-2EK14-0AB0
Note
From firmware V5.3.2
PC
1
Industrial Ethernet patch cable
9
CP 443-1 RNA
1
6GK7443-1EX20-0XE0
SCALANCE X204RNA (PRP)
1
6GK5204-0BA00-2KB2
SCALANCE X204RNA EEC
(PRP)
1
6GK5204-0BS00-3LA3
Field PG M3
1
6ES7715-…
Serves as PC station for the
SOFTNET-IE RNA software
SCALANCE XB008
2
6GK5008-0BA00-1AB2
Or a different switch; it has to
be able to process frames up
to 1532 byte (oversize
frames).
SCALANCE X204RNA (HSR)
3
6GK5204-0BA00-2MB2
SCALANCE X204RNA EEC
(HSR)
1
6GK5204-0BS00-2NA3
RNA
V10, Entry ID: 78790945
Configuration computer
Requires STEP 7 V5.5 SP2
and CPU with firmware from
V5.3.2 onward
11
2 Solution
Software components
Table 2-2
PRP, HSR
Component
STEP 7 V5.5
No.
1
SOFTNET-IE RNA V8.2
6ES7810-4C.10-..
Note
The current service pack (SP
3; version 07/2013) can be
found here:
http://support.automation.siem
ens.com/WW/view/en/680152
76
The current STEP 7 Hardware Support Packages (HSPs
– as of: 06/2013) can be found here:
http://support.automation.siemens.com/WW/view/en/2318
3356
PRP
HSP1097
Order number
1
6GK1711-1EW082AA0
Requires CP 1612 A or two
gigabit Ethernet interfaces
Sample files and projects
The following list includes all files and projects that are used in this example.
Component
Note
78790945_RNA_CODE_v10.zip
This zip file contains the user program.
78790945_RNA_DOKU_v10_en.pdf
This document.
Copyright
Siemens AG 2013 All rights reserved
Table 2-3
RNA
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2 Solution
2.5
Alternative solutions
To increase the availability in communication networks, several redundancy
options are available. Specific protocols provide a loop-free network topology and
the detection of communication interruptions.
In practice, neither perfect network topology nor the perfect media redundancy
protocol which cover all application areas and requirements exist.
Which topology and protocol is the most suitable for the automation network is
always also dependent on additional factors such as:
the physical installation specifications.
the requirements of the application to the switchover time.
the number of network nodes.
the requirements to the data transmission (real time/standard Ethernet).
The most common protocols are:
Table 2-4
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Siemens AG 2013 All rights reserved
Protocol
Abbr.
Reference
Link aggregation
LAG
IEEE 802.1ad
Spanning Tree Protocol
STP
IEEE 802.1d
Rapid Spanning Tree Protocol
RSTP
IEEE 802.1d-2004
Multiple Spanning Tree Protocol
MSTP
IEEE 802.1s
High Speed Redundancy Protocol
HRP
SIEMENS proprietary
Standby connection
SIEMENS proprietary
Media Redundancy Protocol
MRP
IEC 62439-2
Media Redundancy for Planned
Duplication
MRPD
IEC 61158
Parallel Redundancy Protocol
PRP
IEC 62439-3
High Availability Seamless
Redundancy
HSR
IEC 62439-3
Note
Category
Redundant paths
Ring topology with
redundancy manager
Dual network design
Ring topology
An overview and short description of these redundancy protocols can be found in
the Siemens Industry Online Support under entryID: 78789977.
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3 Basics of (bumpless) Redundancy
3
Basics of (bumpless) Redundancy
Sophisticated industrial applications demand a bumpless changeover in the event
of an error. One approach for the realization of such a process is to transmit each
data packet several times at the same time via different paths that are independent
from each other.
The receiver uses the first received data packet and eliminates the duplicate that
arrives later.
The standard IEC 62439-3 even specifies two such protocols:
The "Parallel Redundancy Protocol" (PRP).
The “High-availability Seamless Redundancy” (HSR).
3.1
The redundancy protocol PRP
3.1.1
Description
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PRP belongs to the category of network redundancy and is based on two
independent networks of any topology (LAN A, LAN B).
As compared with other redundancy processes PRP is implemented in the terminal
devices. The protocol is realized in a software layer that is imported above the
security layer (link layer).
The terminal devices have each at least two separate network connections that are
each connected to independent networks.
The PRP protocol is a redundancy solution on layer 2. One component appears on
both networks with the same MAC address (Media Access Control), so that all
protocols here can be used for the network management without changes.
The detection of the frame duplicate is performed via an additional trailer at the end
of the Ethernet data packet.
Figure 3-1
PRP
terminal device
PRP
terminal device
LAN B
LAN A
PRP
terminal device
PRP
terminal device
PRP
terminal device
In order to ensure high availability in the event of an error, the redundancy nodes
send their data packets via LAN A and LAN B.
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3 Basics of (bumpless) Redundancy
3.1.2
Setting up a redundancy network with PRP
PRP network
The topology of a PRP network consists of two fully independent Ethernet
subnetworks. The two networks (LAN A or LAN B) can either have identical
structure or they can differ in topology or performance.
Note
The structures should at least be similar since the duplicate filter is undone if the
difference is too extreme due to too big a time difference.
A PRP network can be setup with PRP-capable terminal devices as well as with
standard components.
The following graphic shows how a PRP network is to be setup with the mentioned
components.
Figure 3-2
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DAN P
SAN
DAN P
LAN A
LAN B
SAN
RedBox
DAN P
SAN
Terminal device (DAN P)
A terminal device with PRP functionality is called "Double Attached Node for PRP"
(DAN P) and has each a connection to each of the two independent networks (LAN
A or LAN B).
In the SIMATIC NET product range, for example, the following modules are PRPcapable:
CP 443-1 RNA
PC station with SOFTNET-IE RNA
PRP-capable SIPROTEC (EN100 module with LC connections and application
version from V4.1x onward) protection devices
SCALANCE X204RNA (EEC) (PRP)
RuggedCom RS950G
RNA
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3 Basics of (bumpless) Redundancy
Note
Each data packet that is transmitted via the PRP mechanisms is given an
identification that specifies whether it transmits via LAN A or LAN B.
Observe the continuously correct connection of the PRP ports of the nodes to
LAN A or to LAN B.
A data packet with the identification "LAN A" also has to be received at the
appropriate port at the receiver.
Standard component (SAN)
Standard components with an individual network interface are called "Single
Attached Node" (SAN) and can be directly connected to one of the two networks.
In this case, the device does not have a redundant path in the event of a failure
and does not benefit from the network redundancy.
However, a SAN can also be connected to a "Redundancy box" (RedBox).
SANs do not have to support the PRP functionality.
A redundancy box (RedBox) makes it possible to connect one or several SANs to
the two networks and takes on the PRP functions in place of all the SANs
connected to it.
From the SIMATIC NET product range, for example, the following modules act as
RedBox:
SCALANCE X204RNA (EEC) (PRP)
RuggedCom RS950G
Copyright
Siemens AG 2013 All rights reserved
System connection (RedBox)
RNA
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3 Basics of (bumpless) Redundancy
3.1.3
Communication with PRP
The specification of PRP provides that two terminal devices are connected to each
other via two independent networks (LAN A and LAN B). Each terminal device is
represented in the two networks with the same MAC and IP address.
Figure 3-3
Network
Redundancy
Application
Transport layer
Transport layer
Network layer
Network layer
PRP
Tx
Port A
Tx
Rx
PRP
Rx
Tx
Port B
Port A
Tx
Rx
Tx
Rx
Rx
Port B
Tx
Rx
LAN A
LAN B
Sending
A PRP-capable terminal device doubles each frame to be sent at the PRP
interface.
The two duplicates are sent to the communication partner via the two ports of the
PRP interface via two separate networks LAN A and LAN B.
Copyright
Siemens AG 2013 All rights reserved
Ethernet
Application
If a SAN is connected with a RedBox, the RedBox performs the PRP functions in
place of the SANs: It doubles the frame to be transmitted and sends it via LAN A
and LAN B to the communication partner. The RedBox therefore works as a type of
redundancy proxy for every type of standard component.
Receiving
Correspondingly, the two duplicates are received by a PRP-capable terminal
device via LAN A and LAN B to the two ports of the PRP interface. The PRP unit
passes the first arriving packet on to the application layer and discards the second
(identical) packet. The interface for the application is therefore identical to any
other Ethernet interface.
If the receiver is a standard component connected through a RedBox, the RedBox
takes on the duplicate detection in its place and only passes on the first received
frame to the addressee. The second frame is discarded.
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3 Basics of (bumpless) Redundancy
Special case with SAN
A SAN that is connected without RedBox can communicate with all DAN Ps and
with SANs of the same network (either LAN A or LAN B) in a PRP network. SAN
has no connection to the nodes of the other network.
If a SAN is also to communicate with the node of the other network, a RedBox is
required.
Note
The first frame of an unknown node is discarded in PRP mode and remains
unreplied. This behavior has to be taken into consideration for services that
generally do not initiate frame repetitions, such as:
Firmware loading
Network searches
Ping
3.1.4
Modifying the Ethernet data packet
Siemens AG 2013 All rights reserved
The detection of duplicates is performed by a “Redundancy Control Trailers” (RCT)
which is inserted in each data packet with the help of the DAN P or RedBox. The
identification field consists of the following parameters:
A sequence number (16 bit)
An identification for the LAN (4 bit)
–
0xA for LAN A
–
0xB for LAN B
The length of the user load (12 bit)
Copyright
The RCT is inserted at the end of the data packet. Thus, the entire data traffic can
also be read without restriction for the SANs, although they do not support PRP;
they interpret the trailer as insignificant filling bits (padding).
NOTICE
Due to the additional trailer the size of the Ethernet packet increases to
1532 byte (Standard Ethernet: 1518 byte)
Make sure that the standard components used, can process frames with an
excessive length of up to 1532 byte (oversize frames).
Note
An overview of the compatible SIMATIC NET components can be found in the
operating instruction of the SCALANCE X204RNA (PRP) and CP 443-1 RNA
(see chapter 8.1).
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3 Basics of (bumpless) Redundancy
3.2
The redundancy protocol HSR
3.2.1
Description
HSR is defined in the same specification as PRP. HSR belongs to the category of
media redundancy and is designed for the use in ring topologies.
HSR is a redundancy protocol which is implemented in the terminal devices. The
protocol is realized in a software layer that is integrated above the security layer
(link layer).
The terminal devices have each at least two network connections that are
connected to a ring.
The detection of the frame duplicate is not performed by a trailer – as is the case
for PRP – but by expanding the Ethernet header (HSR tag).
Figure 3-4
Copyright
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HSR
Terminal device
HSR
Terminal device
HSR
Terminal device
HSR
Terminal device
HSR
Terminal device
To ensure the high availability in the event of an error, the redundancy nodes sent
a data packet in clockwise direction and an identical one in counter-clockwise
direction.
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3 Basics of (bumpless) Redundancy
3.2.2
Setting up a redundancy network with HSR
HSR network
The ring structure is used as HSR network topology. It can be setup with HSRcapable terminal devices as well as with standard components via a ballast
(RedBox).
HSR also permits a redundant design of the ring and / or a connection to the PRP
network.
The following graphic shows how a HSR network is to be setup with the mentioned
components.
Figure 3-5
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DAN H
SAN
RedBox
DAN H
DAN H
Terminal device (DAN H)
A terminal device with HSR functionality is called "Double Attached Node for HSR"
(DAN H) and includes at least two integrated network interfaces (ring ports) for the
connection to a ring. Some devices furthermore have one (or several) internal
port(s).
In the SIMATIC NET product range, for example, the following modules are HSRcapable:
SCALANCE X204RNA (EEC) (HSR)
Standard component (SAN)
Standard components with an individual network interface are called "Single
Attached Node" (SAN) and can only be connected to the ring via a "redundancy
box" (RedBox).
SANs do not have to support the HSR functionality.
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3 Basics of (bumpless) Redundancy
System connection (RedBox)
With the help of the redundancy box, one or several SANs are integrated into the
HSR network. The RedBox takes on the HSR functions in place of all its connected
SANs.
The RedBox furthermore enables the connection of PRP networks and the HSR
ring.
The connection of two HSR rings via two redundant paths is performed via quad
boxes. These HSR terminal devices have at least four integrated ring ports.
From the SIMATIC NET product range, for example, the following module acts as
RedBox:
SCALANCE X204RNA (EEC) (HSR)
Note
The connection of a HSR ring with the remaining network requires the
configuration of the ports via the web-based management.
3.2.3
Communication with HSR
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The specification of HSR provides that all terminal devices are connected via a
ring.
Figure 3-6
Copyright
Network
Redundancy
Ethernet
Application
Application
Transport layer
Transport layer
Network layer
Network layer
HSR
Tx
Port 1
Tx
Rx
Rx
Port 2
Tx
HSR
Tx
Rx
Port 1
Tx
Rx
Rx
Port 2
Tx
Rx
LAN
Sending
A HRS-capable terminal device doubles each frame to be sent at the HRS
interface. The two duplicates are sent via the ring ports to the communication
partner as follows:
One frame in clockwise direction
One frame in counter-clockwise direction
If a SAN is connected with a RedBox, the RedBox performs the HSR function in
place of the SANs: It doubles the frame to be sent and accordingly sends it via the
ring to the communication partner.
The RedBox therefore works as a type of redundancy proxy for every type of
standard component.
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Receiving
The two duplicates are received by a HSR-capable terminal device via the two ring
ports. The HSR unit passes on the first arriving packet to the application layer and
discards the second (identical) packet. The interface for the application is therefore
identical to any other Ethernet interface.
If the receiver is a standard component connected through a RedBox, the RedBox
takes on the duplicate detection in its place and only passes on the first received
frame to the addressee. The second frame is discarded.
Note
Due to sending the frames twice in both directions, effectively only 50% of the
bandwidth of the network is available for data traffic
Special case with SAN
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In contrast to PRP, SAN cannot be integrated into a HSR network without RedBox.
The ring cannot be closed if one SAN misses the second network interface; as a
result the ring would therefore be open.
The HSR header furthermore cuts off the network traffic.
Whilst SANs for PRP can classify the RCT as insignificant, this is not possible for a
HSR tag. Due to its position in the data packet it is always interpreted as valid layer
2 information by SAN. Therefore it is not possible to read out the user data
correctly.
If a SAN is to participate in the network, a RedBox is required.
3.2.4
Modifying the Ethernet data packet
To detect the duplicates, the DAN H devices or RedBox expand the Ethernet
header in the data packet by a HSR tag. The identification field consists of the
following parameters:
Copyright
A sequence number (16 bit)
An identification for the port (4 bit)
The length of the user load (12 bit)
The positioning of the HSR tag right at the start of the data packet has the
advantage that the duplicate detection for each individual data packet is performed
straight after receiving the HSR tag in each device. Waiting for the full receipt of the
data packets – as is the case for PRP – is not necessary.
The HSR terminal devices already start with the passing on of the data packet at
the second ring port, as soon as the HSR information has been fully read in and
the duplicate detection has been performed (compare also cut-through switching).
Only data packets that are directed to itself are passed on by the HSR terminal
device to the application and are removed from the network.
Multicast or broadcast packets are passed on along the ring by each node and are
additionally forwarded to the application.
Note
In order to prevent a permanent circulating of multicast or broadcast packets in
the ring, they are removed after one passage through the ring.
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3.3
Combination of PRP and HSR
3.3.1
Description
With the help of the redundancy box, a connection of the PRP network and a HSR
ring can be realized.
The SCALANCE X204RNA (HSR) can also be used as coupler between a PRP
network and HSR ring. The two standard Ethernet ports are available for
connection to the two networks (LAN A or LAN B) of the PRP network, whilst the
two ring ports can be used as usual for the setup of the HSR ring topology.
In order to make this possible the coupling mode between HSR and the remaining
network in the web-based management of the SCALANCE X204 (HSR) has to be
setup.
3.3.2
Setting up a redundancy HSR-PRP connection
The following graphic shows a redundancy connection of a HSR rings with a PRP
network.
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Figure 3-7
DAN P
SAN
DAN P
LAN A
PRP network
Copyright
LAN B
RedBox
Redundant
network
connection
RedBox
HSR ring
SAN
RedBox
DAN H
DAN H
This connection is designed redundantly, as described by standard IEC 62439-3.
In the SIMATIC NET product range, for example, the following modules can be
used as coupler:
SCALANCE X204RNA (EEC) (HSR)
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3 Basics of (bumpless) Redundancy
Two SCALANCE X-204RNA HSR devices are required for the redundant
connection. Both devices are connected with the PRP network LAN A, as well as
with LAN B.
If a connector fails, full communication is still guaranteed. The SANs are excluded
from this, they are connected with the decoupled PRP network without the RedBox.
Note
3.4
The transmission between the HSR ring and the PRP network can also be nonredundant. Only one single SCALANCE X-200RNA device is used. This device
is connected with the PRP network LAN A and with LAN B. This type of
connection is not recommended since the communication between HSR and
PRP nodes is interrupted if the connector fails.
The SIMATIC NET product portfolio for RNA
Overview
SIMATIC NET offers components in its product portfolio that are predestined for
the use of time and security critical applications by supporting the protocols PRP
and HSR.
The information includes:
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SCALANCE X204RNA (EEC) (PRP)
SCALANCE X204RNA (EEC) (HSR)
SCALANCE X204RNA EEC (combversion)
CP 443-1 RNA
PC station with SOFTNET-IE RNA
RuggedCom RS950G
Copyright
PRP-capable SIPROTEC (EN100 module with LC connections and application
version from V4.1x onward) protection devices (For more information refer to
www.siprotec.com)
The first five components are briefly described below.
Note
Detailed information on the modules can be found in the respective device
manuals (see chapter 8.1).
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SCALANCE X204RNA (EEC)
Figure 3-8
Siemens AG 2013 All rights reserved
The SCALANCE X204RNA is offered in three variants:
with PRP functionality
with HSR functionality
with configurable PRP or HSR functionality
Regarding the connectors, these variants hardly differ: both modules have four
ports which have the following properties, depending on protocol:
Copyright
SCALANCE X204RNA (PRP)
–
two standard Ethernet ports P1 and P2 (switch)
–
two independent PRP ports to connect to LAN A or LAN B
SCALANCE X204RNA (HSR)
Note
–
two standard Ethernet/PRP ports: P1/A and P2/B
–
two ring ports: HSR 1 or HSR 2
The SCALANCE X204RNA (HSR) can also be used as coupler between a PRP
network and HSR ring. The two standard Ethernet ports are available for the
connection to the two networks (LAN A or LAN B) of the PRP network and the
two ring ports can be used as usual for the setup of the HSR ring topology.
The SCALANCE X204RNA and the SCALANCE X204RNA EEC have the same
function, with the following exceptions:
the environmental conditions,
the input voltage ranges
the option to be able to use the optical (SFP) modules in the case of
SCALANCE X204RNA EEC.
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3 Basics of (bumpless) Redundancy
CP 443-1 RNA
Copyright
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Figure 3-9
The CP 443-1 RNA has two network interfaces:
Interface 1: One standard Ethernet port as an alternative to the PRP ports
Interface 2: two independent PRP ports to connect to LAN A or LAN B.
Note
The interfaces can only be operated alternatively. A parallel use of the two
interfaces is not possible. Enabling is performed in the configuration with STEP 7
(refer also to chapter 4.1).
The following graphic shows the CP 443-1 RNA connection variants:
Figure 3-10
CP 443-1 RNA
CP 443-1 RNA
1
Industrial Ethernet
2
Industrial Ethernet
CP 443-1 RNA
3
LAN A
LAN B
Industrial Ethernet
Table 3-1
No.
Description
1.
Connection to port X1P1 of the Ethernet interface (ISO transport)
2.
Connection of the RNA interface to a PRP network
3.
Connection to port X2P1 of the RNA interface (ISO transport / ISO-on-TCP / TCP)
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3 Basics of (bumpless) Redundancy
SOFTNET-IE RNA
Figure 3-11
The SOFTNET-IE RNA network access software for the operation in PRP networks
assumes the following:
–
CP 1612A or
–
Gigabit Ethernet network cards
Administrator rights for the installation
Per PC and product exactly one software license
RuggedCom RS950G
Figure 3-12
Copyright
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Two free Ethernet network cards in PC/ PG
The RuggedCom RS950G is a three-port switch with the following port properties:
One standard Ethernet port P1
Two independent PRP ports to connect to LAN A or LAN B
The ports are provided twice and can be either connected via copper (RJ45) or
optically (SFP).
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3.5
Diagnostic options
3.5.1
Overview
In order to receive indications for faults in the redundancy network, the SIMATIC
NET components offer various options. Which ones they are, are shown by the
table below:
Table 3-2
Note
Diagnostic options
SCALANCE X204RNA
LED display
Fault tracing by web-based management (WBM)
Error reporting by
–
Email (SMTP)
–
SNMP traps
–
Syslog
SNMP V1, V2, V3 (incl. PRP-MIB IEC62439 (IEC-62439-3MIB))
Statistics display
CP 443-1 RNA
LED display
Diagnostics with STEP 7
Diagnostic of communication with the special diagnostic
NCM
Web diagnostic
SNMP (incl. PRP-MIB IEC62439 (IEC-62439-3-MIB))
IP double address identification
Statistics display
SOFTNET-IE RNA
SNMP (incl. PRP-MIB IEC62439 (IEC-62439-3-MIB))
“SOFTNET-IE RNA diagnostic” tool for
–
setting up a plant
–
monitoring
–
checking the redundancy status of the system
–
statistics display
RuggedCom RS950G
LED display
Fault tracing by web-based management (WBM)
Copyright
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Component
Detailed information on the diagnostic options can be found in the respective
device manuals (see chapter 8.1).
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3.5.2
Statistic displays
The statistic displays in RNA-capable devices give information on the number of
frames in the PRP network or the HSR ring.
Devices with PRP functionality
The SCALANCE X204RNA, CP 443-1 RNA and SOFTNET-IE RNA perform the
following measurements:
number of valid, received frames (identification “LAN A”) at
PRP port A (LAN A)
number of valid, received frames (identification “LAN B”) at
PRP port B (LAN B)
number of incorrect, received frames (identification “LAN A”) at
PRP port B (LAN B)
number of incorrect, received frames (identification “LAN B”) at
PRP port A (LAN A)
Copyright
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The number of incorrect received frames always has to be zero (“0”). Otherwise a
networking error is pending on the PRP ports A or B.
Figure 3-13
Devices with HSR functionality
The SCALANCE X204RNA (HSR) performs the following measurements:
Number of valid received HSR frames at port HSR 1.
Number of valid received HSR frames at port HSR 2.
Number of valid, received PRP frames (identification “LAN A”) at port P1/A.
Number of valid, received PRP frames (identification “LAN B”) at port P2/B.
Number of faulty, received PRP frames (identification “LAN A”) at port P2/B
(error).
Number of faulty, received PRP frames (identification “LAN B”) at port P1/A
(error).
Number of received frames with independent source MAC address (error).
Number of valid received PRP or standard frames at port HSR 1 (error).
Number of valid received PRP or standard frames at port HSR 2 (error).
Number of valid received HSR frames at port P1/A (error).
Number of valid received HSR frames at port P2/B (error).
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Measurements that are identified by “(error)” always have to supply (“0”).
Otherwise a networking error at the HSR ports is pending.
Copyright
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Figure 3-14
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3.5.3
SOFTNET-IE RNA diagnostic
Via an individual diagnostic tool the SOFTNET-IE RNA software offers the option
to:
set up a plant,
monitor it,
check the redundancy status of the system.
Menu overview
In the overview all existing virtual adapters (see chapter 4.2) are listed with the
following details:
name of the virtual Ethernet adapter
network name of the virtual Ethernet adapter
Link status
Copyright
Siemens AG 2013 All rights reserved
Figure 3-15
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3 Basics of (bumpless) Redundancy
Adapter menu
For each configured adapter an individual button for polling more information, such
as, statistics and connected devices will appear.
The “Statistics” window provides the following details:
name of the real Ethernet adapter
network name of the real Ethernet adapter
display of the connection status (connected/ not connected)
sent PRP frames in this LAN
received PRP frames from this LAN
number of received faulty PRP frames at the LAN
frames that, according to their identification were received at the wrong LAN.
number of generated control frames
Copyright
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Figure 3-16
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The “Node table” window gives an overview of the PRP nodes (PRP-capable
terminal devices and standard components).
Each node in the table consists of two rows. The first row stands for LAN A and the
second row for LAN B.
General information is only provided in the first row of the node (MAC address,
type etc.).
Copyright
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Figure 3-17
Additionally to the information in the table, the window also includes the following
details and buttons:
Number of nodes to which contact existed within a certain time period.
Number of maximum stored nodes in the node table.
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The “Settings” window makes it possible to configure parameters.
These are:
IP address of the virtual adapter
Subnet mask of the virtual adapter
Multicast address of the protocol
Time in which the control frames are sent
Enabling the “Transparent reception” function. This option has the effect that
the RCT border of frames is not to removed before they are forwarded to the
application
Statistics refresh rate
Language settings
Note
Start the diagnostic with administrator rights in order to be able to use the
settings without restrictions.
Copyright
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Figure 3-18
Note
Detailed information on the SOFTNET-IE RNA diagnostic can be found in the
respective device manual (see chapter 8.1).
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4 Configuration and Settings
4
Configuration and Settings
4.1
Configuring the CP 443-1 RNA
Note
This chapter is for information purposes only. All the required settings for this
application are already integrated in the STEP 7 project.
Setting the active interface
The CP 443-1 RNA has the following interfaces:
Ethernet interface; e.g. for connecting a PG / PCs or a higher-level company
network.
–
PRP mode with the two ports as redundancy solution
–
Port 1 as single port of the RNA interface (port 2 is disabled).
The Ethernet interface or the RNA interface can only be enabled alternatively. A
parallel use of the two interfaces is not possible. Enabling is performed in the
configuration with STEP 7.
Figure 4-1
Copyright
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RNA interface (design with two ports); they can be operated as follows:
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4 Configuration and Settings
Enabling SNMP
The CP 443-1 RNA enables data polling on the RNA interface via SNMP in version
V1. It provides the contents of certain MIB objects according to standard MIB-II
(RFC 1213), PRP MIB IEC62439 (IEC-62439-3 MIB) and automation MIB.
If SNMP is required for, e.g. diagnostic purposes, this has to be enabled in the
properties of the CP.
Figure 4-2
If CP 443-1 RNA acts as DAN P node the PRP function has to be explicitly enabled
in the properties of the RNA interface of the CP.
Figure 4-3
Copyright
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Enabling PRP
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4 Configuration and Settings
4.2
Configuring the SOFTNET-IE RNA
For the operation of the SOFTNET-IE RNA on the PG you require
at least two free Ethernet network cards to connect to the LAN A as well as the
LAN B of the PRP network
administrator rights.
The assignment of network cards (adapters) to the SOFTNET-IE RNA protocol is
performed via the configuration.
Copyright
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Figure 4-4
The two adapters selected are joined to a virtual adapter through the SOFTNET-IE
RNA software.
After completing the configuration, only the virtual adapter appears in the network
connection overview of Windows instead of the two network cards provided for the
PRP.
Note
Detailed information on the SOFTNET-IE RNA configuration can be found in the
respective device manual (see chapter 8.1).
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4.3
Configuring the SCALANCE X204 (HSR)
The SCALANCE X204RNA (HSR) can also be used as coupler between a PRP
network and HSR ring. In this case, the two standard Ethernet ports are available
for the connection to the two networks (LAN A or LAN B) of the PRP network and
the two ring ports can be used as usual for setting up the HSR ring topology.
In order to make this possible the coupling mode between HSR and the remaining
network in the web-based management of the SCALANCE X204 (HSR) has to be
setup.
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Figure 4-5
The following modes can be selected.
Table 4-1
Copyright
Mode
Note
Description
HSR SAN Mode
The HSR ring is connected with the standard
Ethernet terminal devices or the network
segments (default setting).
Non Redundant HSR PRP coupling
Setting for non-redundant HSR<>PRP coupling.
P1/A is connected with LAN A, P2/B with LAN B
of a PRP network.
Redundant HSR PRP coupling, LAN A
Setting for redundant HSR<->PRP coupling.
P1/A is connected with LAN A of a PRP
network. P2/B is open and must not be used.
Redundant HSR PRP coupling, LAN B
Setting for redundant HSR<->PRP coupling.
P1/B is connected with LAN B of a PRP
network. P1/A is open and must not be used.
Since a pure HSR network without redundant coupling has been established in
this application example, the default setting can be kept.
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5 Installation
5
Installation
5.1
Hardware installation
Solution via PRP
The figure below shows the hardware setup of the application with the PRP
network redundancy.
Figure 5-1
SCALANCE
XB005
S7-400 mit
CP 443-1 RNA
SCALANCE
X204RNA (PRP)
CPU 317-2 PN/DP
24V
24V
24V
LAN A
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SCALANCE
XB005
24V
SCALANCE
X204RNA EEC (PRP)
24V
PG with
SOFTNET-IE RNA V8.2
Configuration computer
Copyright
LAN B
24V
Connect all SIMATIC components each to a 24V power supply.
After completing commissioning (according to chapter 6) connect all PRP nodes
via their LAN A port with the first SCALANCE XB005 and via the LAN B port with
the second SCALANCE XB005.
Connect the S7-300 via the integrated CPU interface with port P1 of the
SCALANCE X204 RNA (PRP).
Use the standard Ethernet cable for this purpose.
Note
Observe the continuously correct connection of the PRP ports of the nodes to
LAN A or to LAN B.
A data packet with the identification "LAN A" also has to be received at the
appropriate port at the receiver.
Try to set up the networks as symmetrical as possible. Redundancy faults in the
network can be easier identified by the difference in number of received frames
on the LANs (see statistic display of X204RNA and SOFTNET-IE RNA).
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5 Installation
Note
The installation guidelines for these components must always be observed.
Solution via HSR
The figure below shows the hardware setup of the use with media redundancy
HSR.
Figure 5-2
CPU 416-3 PN/DP
PG
(Configuration computer)
SCALANCE
X204RNA EEC (HSR)
SCALANCE
X204RNA (HSR)
24V
24V
Copyright
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24V
24V
24V
CPU 317-2 PN/DP
SCALANCE
X204RNA (HSR)
24V
SCALANCE
X204RNA (HSR)
Connect all SIMATIC components each to a 24V power supply.
Connect all HSR nodes via their HSR ports to a ring topology.
Connect the S7-300 and S7-400 via the integrated CPU interface with port P1 of
the respective SCALANCE X204 RNA (HSR).
Use the standard Ethernet cable for this purpose.
Note
The installation guidelines for these components must always be observed.
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5.2
Software installation
5.2.1
Standard software
Overview
The following table shows what software packets are required for which scenarios
(PRP or HSR):
Table 5-1
Scenario
PRP and HSR
PRP
Software
STEP 7 V5.5 SP3
HSP1097
SOFTNET-IE RNA
Development software
Install the following software packages on you configuration computer.
STEP 7 V5.5 SP 3
Copyright
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HSP1097 (only required for the PRP solution)
SOFTNET-IE
For the approach with network redundancy (PRP) the field PG incl. SOFTNET-IE
RNA is used.
Install the following software package on your field PG.
SOFTNET-IE RNA
Follow the instructions of the installation program.
Note
An installation instruction for the SOFTNET-IE RNA can be found in its operating
instructions (see chapter 8.1).
5.2.2
Application software
For each scenario, a sample program is available.
Unzip the zipped 78790945_RNA_CODE_v10.zip code folder from the download
area into a folder your choice.
In this folder, there are the STEP 7 project folders:
RNA_PRP.zip for implementing the PRP solution
RNA_HSR.zip for implementing the HSR solution
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6 Starting the Application
6
Starting the Application
6.1
Requirements
Factory setting
For fault-free commissioning of the application it is advisable to reset all SIMATIC
components to the factory settings.
After this process it can be guaranteed that no previous configuration exists in the
modules.
A detailed instruction for resetting can be found in the respective device manuals
(see chapter 8.1).
Note
Creating the virtual adapter
To be able to use the field PG as PRP node, the network cards used have to be
configured accordingly.
An instruction can be found in the SOFTNET-IE RNA device manual (see
chapter 8) as well as chapter 4.2.
Copyright
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Note
Opening STEP 7 project
To commission the components the STEP 7 software is used, among other things.
Open STEP 7 and retrieve the required project via File > Retrieve… (see chapter
5.2.2).
6.2
Addressing the modules
6.2.1
Overview of IP addresses
PRP solution
The following table shows what IP address is assigned to the components of the
PRP solution.
Table 6-1
Component
IP address
CPU 317-2 PN/DP
192.168.0.7
CP 443-1 RNA
192.168.0.2
SCALANCE X204RNA (PRP)
192.168.0.3
SCALANCE X204RNA EEC (PRP)
192.168.0.4
PG with SOFTNET-IE RNA
(Virtual adapter network interface)
192.168.0.60
Configuration computer
192.168.0.100
255.255.255.0 is used as subnet mask each time.
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6 Starting the Application
HSR solution
The following table shows what IP address is assigned to the components of the
HSR solution.
Table 6-2
Component
IP address
CPU 317-2 PN/DP
192.168.0.7
CPU 416-3 PN/DP
192.168.0.6
SCALANCE X204RNA (HSR)
192.168.0.3
SCALANCE X204RNA EEC (HSR)
192.168.0.4
Configuration computer
192.168.0.100
255.255.255.0 is used as subnet mask each time.
6.2.2
Assigning the IP address
Configuration computer
Change the IP address of the PCs in the following way:
Copyright
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Table 6-3
No.
1.
Action
Comments
For changing the network
address, open the Internet
protocol (TCP(IPv4) Properties via
"Start > Control Panel > Network
and Internet > Network
Connections"
Enter the IP address according to
the figure.
Close all dialog boxes by clicking
OK.
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6 Starting the Application
SOFTNET-IE RNA
Change the IP address of the virtual SOFTNET-IE RNA interface in the field PG as
described below.
Table 6-4
No.
Comments
For changing the network
address, open the Internet
protocol (TCP(IPv4) Properties via
"Start > Control Panel > Network
and Internet > Network
Connections" Select the virtual
adapter for the PRP
communication.
Enter the IP address according to
the figure.
Close all dialog boxes by clicking
OK.
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1.
Action
SIMATIC components
To address the SIMATIC components connect the configuration computer with the
respective module via a standard Ethernet cable.
The approach for changing the IP address is demonstrated on the example of the
SCALANCE X204RNA (PRP). The addressing of the other modules is performed
the same way.
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6 Starting the Application
Table 6-5
Action
1.
The Ethernet nodes can be edited
via the SIMATIC MANAGER.
Open the respective dialog
window via “PLC > Edit Ethernet
Node…“.
2.
Search the network via the
“Browse…” button.
Comments
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No.
RNA
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6 Starting the Application
No.
3.
Action
Comments
The X204RNA is detected.
Confirm the pre-selection with OK.
Note:
If several devices are found, verify
the module to be addressed via
the MAC address.
Select Use IP parameters and
enter the respective IP address
and subnet mask. Transfer the
parameters via the Assign IP
Configuration button into the
module. Close the dialog box with
OK.
5.
Assign the required IP addresses
to all SIMATIC components this
way.
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4.
RNA
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6 Starting the Application
6.3
Loading the controllers
Table 6-6
No.
Action
To load the controller, connect the
PC with the respective CPU
interface.
Select the respective station and
load the program into the CPU.
2.
Repeat step 1 for the other
controller.
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1.
Comments
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7 Operating the Application
7
Operating the Application
7.1
Requirements
To test the redundancy, all components have to be networked according to the
instruction of chapter 5.1. Pay attention to the correct interconnection of LAN A and
LAN B or the ring.
In order to be able to go online to the controllers with STEP 7, connect the PC
(configuration computer) to a free LAN port of the SCALANCE X204 RNA.
7.2
Demonstrating the redundancy
The STEP 7 project includes a small simulation program and is controlled via the
included tag tables. For each communication partner a separate tag table exists
(CONTROL).
Table 7-1
Action
1.
There is a CONTOL tag control in
each of the module folders of the
CPU.
Open this element in the two
stations.
2.
Arrange the two tag tables next to
each other with “Windows >
Arrange > Vertically” or with the
<SHIFT> + F3 shortcut key.
3.
Select the tables successively and
go online via the respective icon.
4.
You can see the send area (S7300 station) or receive area (S7400 station) of the data exchange
in row 6 and 7.
Copyright
Siemens AG 2013 All rights reserved
No.
RNA
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Comments
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7 Operating the Application
No.
Action
5.
The S7-300 sends the new values
to S7-400 approx. every 10 sec.
6.
Remove the network connection
between the two devices in order
to test the redundancy.
7.
The data communication
continued uninterrupted because
of the dual network design.
7.3
Comments
In this example, the network plug was removed from PRP
port A of the CP 443-1 RNA for the PRP scenario.
The ring was separated for the HSR scenario in this
example.
Diagnostic at PRP
The missing network connection is detected by the PRP nodes and made visible by
various mechanisms.
Table 7-2
No.
Action
In the online view of the S7-400
hardware configuration, the CP
443-1 RNA reports the missing
link.
2.
The value for the number of
frames at port X2 P1 (LAN A),
stagnates whilst the counter at
port X2 P2 (LAN B) increases on
the web-based statistics table of
the CP 443-1 RNA.
3.
The LED BUS2F at CP 443-1
RNA lights up red.
Copyright
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1.
Comments
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7 Operating the Application
No.
Action
The X204 RNA reports the
absence of the data packets in its
log table of LAN A.
5.
The value for the number of
frames at port PRP A (LAN A),
stagnates whilst the counter at
port PRP A (LAN B) increases on
the web-based statistics table of
X204 RNA.
6.
The error LED lights up yellow.
7.
In SOFTNET-IE RNA fault is
displayed by an exclamation mark.
Copyright
Siemens AG 2013 All rights reserved
4.
Comments
RNA
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7 Operating the Application
7.4
Diagnostic at HSR
The open ring is detected by the HSR nodes and made visible by various
mechanisms.
Table 7-3
Action
1.
The X204 RNA reports a change
of the port status in its log table.
2.
On the web-based statistics table
of the X204 RNA the value for the
number of frames at HSR 2
stagnates, whilst the counter at
HSR 1 is increased.
3.
The error LED lights up yellow.
Comments
Copyright
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No.
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8 Related Literature
8
Related Literature
8.1
Bibliography
This list is by no means complete and only presents a selection of related
references.
Table 8-1
Copyright
Siemens AG 2013 All rights reserved
Topic
Title
/1/
STEP7
SIMATIC S7-300/400
Automating with STEP7 in STL and SCL
Author: Hans Berger
Publicis Publishing
ISBN: 978-3895784125
/2/
STEP7
SIMATIC S7-300/400
Automating with STEP 7 in LAD and FBD
Author: Hans Berger
Publicis Publishing
ISBN: 978-3895784101
/3/
Operating instructions
SCALANCE X204RNA (PRP)
SIMATIC NET; Industrial Ethernet Switches; SCALANCE
X204RNA SCALANCE X204RNA EEC; Operating Instructions
http://support.automation.siemens.com/WW/view/en/58064307
/4/
Operating instructions
SCALANCE X204RNA (HSR)
SIMATIC NET SCALANCE X204RNA SCALANCE X204RNA
EEC (HSR) Operating Instructions
http://support.automation.siemens.com/WW/view/en/66270618
/5/
Operating instructions
SOFTNET-IE RNA V8.2
SIMATIC NET; PG/PC – Industrial Ethernet; SOFTNET-IE RNA
V8.1; Operating Instructions
http://support.automation.siemens.com/WW/view/en/61630607
/6/
Manual
CP 443-1 RNA
SIMATIC NET S7-400 - Industrial Ethernet CP 443-1 RNA
manual
http://support.automation.siemens.com/WW/view/en/69265740
/7/
Data sheet
RuggedCom RS950G
http://www.ruggedcom.com/pdfs/datasheets/rs950g_datasheet.p
df
/8/
Installation instructions
RuggedCom RS950G
http://www.ruggedcom.com/pdfs/installation_guides/rs950g_insta
llationguide.pdf
RNA
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9 History
8.2
Internet links
This list is not complete and only represents a selection of relevant information
Table 8-2
Topic
Title
\1\
Link to this document
http://support.automation.siemens.com/WW/view/en/78790945
\2\
Siemens Industry Online
Support
http://support.automation.siemens.com
\3\
Siemens’ RNA web-site
http://www.siemens.com/rna
9
History
Table 9-1
Version
09/2013
Modifications
First version
Copyright
Siemens AG 2013 All rights reserved
V1.0
Date
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