WinCC - Siemens Support

WinCC - Siemens Support
Multi-User Systems
1
Long-term archive server
2
File Server
3
WinCC ServiceMode
4
Redundant Systems
5
SIMATIC HMI
WinCC V7.2
WinCC: Configurations
System Manual
Print of the Online Help
02/2013
A5E32318776-AA
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A5E32318776-AA
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Table of contents
1
Multi-User Systems.......................................................................................................................................7
1.1
Multi-user systems in WinCC........................................................................................................7
1.2
Client/Server Systems in WinCC...................................................................................................8
1.3
Configurations and Quantity Structure........................................................................................10
1.4
Client/server scenarios................................................................................................................13
1.5
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
Server Configuration....................................................................................................................16
Server Configuration....................................................................................................................16
Creating a new project on the server...........................................................................................17
How to Register Clients in the Computer List..............................................................................19
How to Configure Operator Authorization....................................................................................20
How to Configure the Package Export........................................................................................22
Configuring Clients in the Server Project.....................................................................................26
1.6
1.6.1
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9
1.6.10
1.6.11
Client Configuration.....................................................................................................................29
Client Configuration.....................................................................................................................29
Creating a New Project on the Client..........................................................................................31
Configuring the Import Package..................................................................................................33
How to Configure a Standard Server...........................................................................................36
How to Configure a Preferred Server..........................................................................................39
Configuring the Start Picture of the Client...................................................................................42
Displaying Pictures from Different Servers..................................................................................45
Configuring a Picture Change on the Client................................................................................47
Using Data from Different Servers...............................................................................................49
Displaying Messages from Different Servers..............................................................................51
Configuring a Message Sequence Report for Messages from Several Servers.........................53
1.7
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
System Behavior in Runtime.......................................................................................................55
System Behavior in Runtime.......................................................................................................55
Starting Up the Server.................................................................................................................57
Starting Up the Client..................................................................................................................58
Specifics of Communication for a Server with Several Network Cards.......................................59
Shutting Down the Server............................................................................................................61
Shutting Down the Client.............................................................................................................61
1.8
1.8.1
1.8.2
1.8.3
1.8.4
1.8.5
1.8.6
1.8.7
Remote Configuration..................................................................................................................62
Remote Configuration..................................................................................................................62
How to Access Computers Outside a Subnet.............................................................................63
Access to Projects from Several Clients......................................................................................65
How to Open a Project for Editing...............................................................................................67
How to Edit Server Project Pictures............................................................................................68
How to Activate a Project............................................................................................................69
How to Deactivate a Project........................................................................................................71
1.9
Use of the OPC Interface in Client/Server Systems....................................................................73
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Table of contents
2
Long-term archive server............................................................................................................................75
2.1
3
File Server..................................................................................................................................................77
3.1
4
5
4
Setting Up of the Long-term Archive Server................................................................................75
Setting Up the File Server...........................................................................................................77
WinCC ServiceMode..................................................................................................................................79
4.1
WinCC ServiceMode...................................................................................................................79
4.2
Standard Project and Service Project..........................................................................................80
4.3
Configurations for a service project.............................................................................................81
4.4
Using a service project and restrictions.......................................................................................82
4.5
WinCC status and control in the system tray...............................................................................84
4.6
4.6.1
4.6.2
Functionality and Prerequisites...................................................................................................86
Mode of operation of a service project........................................................................................86
Requirements for running a service project.................................................................................87
4.7
4.7.1
Configuring WinCC ServiceMode................................................................................................89
How to define a project as a service project................................................................................89
4.8
4.8.1
4.8.2
4.8.3
4.8.4
Service Project in Runtime..........................................................................................................92
Service project in Runtime...........................................................................................................92
How to activate a service project.................................................................................................92
Show to log into and off of an activated service project..............................................................93
How to activate the interactive operation for service purposes...................................................93
Redundant Systems...................................................................................................................................95
5.1
Redundancy................................................................................................................................95
5.2
WinCC Redundancy....................................................................................................................96
5.3
5.3.1
5.3.2
Structure of WinCC System.........................................................................................................98
Configuring the WinCC System without Redundancy.................................................................98
Configuring with WinCC System with Redundancy.....................................................................99
5.4
How Redundancy Works...........................................................................................................101
5.5
5.5.1
5.5.2
5.5.3
5.5.4
5.5.5
5.5.6
5.5.7
5.5.7.1
5.5.7.2
5.5.7.3
5.5.8
5.5.8.1
5.5.8.2
5.5.8.3
Configuring the Redundancy Server.........................................................................................104
Guide to Setting Up a Redundant System.................................................................................104
Requirements for redundant systems........................................................................................106
Configuring an Identical Function..............................................................................................107
Redundant User Archives..........................................................................................................108
Online Synchronized Messages................................................................................................109
Registering the Servers in Windows..........................................................................................109
Configuration.............................................................................................................................111
Configuring Redundancy...........................................................................................................111
"General" Tab............................................................................................................................113
"User Archive" tab.....................................................................................................................116
WinCC Project Duplicator..........................................................................................................118
WinCC Project Duplicator..........................................................................................................118
How to Duplicate a Project for Redundant Servers...................................................................118
How to duplicate a redundant project at runtime.......................................................................120
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Table of contents
5.6
5.6.1
5.6.2
5.6.2.1
5.6.2.2
5.6.2.3
5.6.2.4
5.6.2.5
5.6.2.6
Working with Redundancy.........................................................................................................122
Example of changing client in the case of a process coupling error.........................................122
Failure scenarios.......................................................................................................................125
Failure scenarios.......................................................................................................................125
Scenario 1: Project on server computer not in Runtime............................................................126
Scenario 2: Connection Fault to Partner Server........................................................................128
Scenario 3: Faulty Network Connection to Client......................................................................130
Scenario 4: Faulty Process Connection....................................................................................130
Scenario 5: Software Error........................................................................................................131
5.7
5.7.1
5.7.2
5.7.3
5.7.3.1
5.7.3.2
5.7.3.3
5.7.3.4
5.7.3.5
5.7.3.6
5.7.3.7
5.7.3.8
Appendix....................................................................................................................................133
WinCC Redundancy system messages....................................................................................133
WinCC Redundancy System Tags............................................................................................135
Abbreviations.............................................................................................................................136
Abbreviations.............................................................................................................................136
Company Level..........................................................................................................................137
Process control level.................................................................................................................137
Process Level............................................................................................................................137
Server........................................................................................................................................137
Client.........................................................................................................................................137
Project.......................................................................................................................................138
Archive Memory.........................................................................................................................138
Index.........................................................................................................................................................139
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Multi-User Systems
1.1
1
Multi-user systems in WinCC
Content
WinCC can be used to configure client/server systems, thus allowing for system operation and
monitoring features to be distributed to several clients and servers. In the case of large-scale
systems, therefore, the loads applied to individual computers can be reduced and the
performance increased.
This chapter shows you:
● Client/server scenarios that can be realized using WinCC.
● How to configure the server and clients in the client/server system.
● How to configure clients which provide views on several servers.
● How the client/server system behaves in runtime.
● How to configure a server project from a remote client.
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1.2 Client/Server Systems in WinCC
1.2
Client/Server Systems in WinCC
Introduction
WinCC can be used to configure client/server systems having several clients and servers,
allowing for large systems to be operated and monitored more efficiently. By distributing the
tasks for operating and monitoring processes amongst several servers, the utilization rate of
each individual server is reduced, thus increasing the performance. In addition, it is also
possible to map systems which have a technologically or topologically complex structure using
WinCC.
Examples of Client/Server System Implementation:
● Large-scale systems where several operator and monitoring stations (clients) are required
for the same tasks.
● Systems where operator and monitor tasks are distributed to several operator stations,
such as a central client, for displaying all messages of one system.
Clients can be used for:
● Multi-user systems with one server for configuration: several clients access the project
located on a server with process driver connection. In multi-user systems, it is not necessary
to configure the clients as all data is provided by the server.
● Distributed systems with several servers to be configured: clients can access data on
different servers with process driver connection. Within a distributed system, each client is
individually configured, the necessary server data is imported on the clients and, if modified,
can be automatically updated. The process data is provided by the servers.
● Remote configuration: a server project is configured from a client.
● Remote monitoring: a server project is monitored from a client.
Requirements for Configuring Client/Server Systems
In order to configure client/server systems with WinCC, the "WinCC Server" option must be
available on every WinCC server.
All computers in a client/server system must be connected to each other via a network (LAN).
It is also possible to log on computers in neighboring subnets, which are connected via a router,
as clients or servers in the system.
In order to connect computers via ISDN, the WinCC SmartTool "Communication Configurator"
is required.
Redundant Systems
To maintain system operation even in the case of faults, e.g. following failure of a server, it is
recommended to configure a redundant server. For detailed instructions for the configuration
of redundant systems, see the WinCC documentation "Redundant Systems".
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1.2 Client/Server Systems in WinCC
The documentation contains information on the configuration of clients in redundant systems.
Note
Remote configuration is not permitted, if the project is open on both redundant systems. In
order to configure a redundant system, the standby computer must not have a WinCC project
open. In order to configure a redundant system in Runtime, you must proceed as follows:
- Deactivate the standby computer and close the project.
- Configure the master computer either in Runtime, remotely or locally.
- After completion of the online configuration, duplicate the project on the standby computer
using the Project Duplicator in Runtime.
- Open and activate the project again on the standby computer.
Client on a redundant server pair
A WinCC project containing a client without local project may only be edited on a server (master
or standby). No WinCC project may be opened on the partner server; the WinCC Explorer and
Runtime must be closed while you are editing the project.
You can still configure the master server or standby server as the preferred server to distribute
load in Runtime.
WinCC Explorer should remain closed on the clients while Runtime is activated. It is best to
start Runtime using the WinCC Tool "AutoStartRT". Operator input is locked (user interface is
"grayed-out") if WinCC Explorer remains open and you switch to another server computer.
The WinCC editors cannot be started as long as the server from which the project was opened
is not the current server of the client.
See also
Use of the OPC Interface in Client/Server Systems (Page 73)
Remote Configuration (Page 62)
System Behavior in Runtime (Page 55)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
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1.3 Configurations and Quantity Structure
1.3
Configurations and Quantity Structure
Configuration of Client/Server Systems for Different Requirements
Different client/server solutions can be configured according to the requirements. It is possible
to implement Clients, WebClients and ThinClients.
Clients
Depending on the configuration, clients in a client/server system can:
● Represent a view from a server on several clients (multi-user system)
● Display views of several servers on clients (distributed system)
● Configure a server project (remote) from a client
● Activate and deactivate a server project (remote) from a client
To configure several clients the "WinCC Server" option is required on each server.
WebClients
WebClients are installed in a client/server system, for example, when:
● Access to the system is required via narrowband connections
● Only temporary access to data is required
● Data access is necessary over large distances, e.g. via Internet
WebClients have the following advantages:
● Client computers with different operating systems can be implemented
● Simultaneous access to a server by several WebClients is possible
● Large quantity structures can be realized
In order to configure WebClients, a minimal installation of WinCC is required and the "WinCC
WebNavigator" option.
ThinClients
ThinClients basically have the same main features as WebClients and the additional features:
● Use is also possible on robust client platforms on a Windows CE basis (e.g. MP370)
● Mobile clients can also be used (e.g. Mobic)
In order to configure ThinClients, the minimal installation of WinCC is required and the "WinCC
WebNavigator" option.
Possible numbers of clients and servers
Different quantity structures can be realized according to the type and number of client types
used. Mixed systems are possible, meaning the parallel use of clients and WebClients within
one client/server system.
If you only use clients, in a WinCC network up to 32 parallel clients can access a server. A
client can access up to 18 servers in RT. You can use a maximum of 36 servers in the form
of 18 redundant server pairs.
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1.3 Configurations and Quantity Structure
When using WebClients, the limit is up to 51 clients (1 client and 50 WebClients). In such a
system you can use up to 36 servers in the form of 18 redundant server pairs.
Configuration of mixed systems
When configuring a mixed system, the following rule of thumb should be observed to achieve
the maximum quantity structures:
Each client type has one value:
● WebClient/Thin Client = 1
● Client = 2
● Client with "Configure remote" function = 4
The total of all values of all clients should not exceed 60 per server in the case of WinCC
servers without operating function. In the case of servers with operating function, the total value
should not exceed 16.
Example:
Components
Significance
2 Clients with the "Configure remote" function
2 x 4 =8
4 Clients
4 x 2 =8
44 WebClients
44 x 1 =44
Sum
60
Simultaneous start of several clients on a server
The simultaneous start of several clients connected to a server may lead to an overload
situation. In this case, the clients go into timeout. We recommend starting the clients in
succession.
Startup list of a server that is not used as an operator station
In order to reduce the load on servers that are not used as operator stations, we recommended
excluding the following applications from the startup list:
● Graphics Designer Runtime and its dependent applications, e.g., CCTTRT Server (process
control options) or SFCRT (visualization of SFC blocks)
● Global Script Runtime You must avoid global actions on a server running more than four
clients with local project.
The same applies to central archive servers and servers running more than four clients with
local project and if you are not using the OS project editor.
You may not remove applications that were added to the startup list by the OS project editor.
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1.3 Configurations and Quantity Structure
See also
Client/Server Systems in WinCC (Page 8)
Use of the OPC Interface in Client/Server Systems (Page 73)
Remote Configuration (Page 62)
System Behavior in Runtime (Page 55)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
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1.4 Client/server scenarios
1.4
Client/server scenarios
Introduction
Using WinCC you can implement different client/server scenarios depending on the application:
Multi-user systems
A multi-user system is typically configured for smaller systems in which a distribution of data
to several servers is required.
A server with process driver connection is configured which is then responsible for all central
functions and several operating stations (clients). The individual operator stations can execute
the same or different tasks.
The clients can be used for the following, depending on their operator authorization:
● Monitor the system.
● Monitor and operate the system.
● Remote configuration of the server project, e.g. as service computer.
The clients can be used for the following, depending on their configuration:
● To display the same view of the project when the process, for example, should be capable
of being operated from various points in the system.
● To display different views of the project, e.g. only messages.
User authorization is issued to define the functions that are available to an operator on a certain
operating console.
Distributed systems
Distributed systems implementing several servers are generally used in the case of large
systems when particularly large quantities of data must be processed. As a result of distributing
tasks over several servers, the load applied to individual servers is relieved. This achieves a
better system performance realize larger typical applications.
If distributed systems are configured in a WinCC system, the process tasks are distributed
amongst the servers by means of the corresponding configuration according either to the
process steps or functionally:
● In the case of a technological distribution, each server takes over a technically limited area
of a system, e.g. a certain press or dry unit.
● In the case of a functional distribution, each server takes over a certain task, e.g.
visualization, archiving, issuing alarms.
In Runtime, the clients in a distributed system can each display the data from up to 18 different
servers or from redundant pairs of servers. Each client in a distributed system is configured
individually with basic pictures and a little local data. The server data required for displaying
the process data is transferred from the servers to the clients and can be updated automatically,
if necessary.
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1.4 Client/server scenarios
File server
You can use a file server for Client-Server Systems in order to save all projects and administer
them in a centralized system. For example, this facilitates the creation of periodic backup
copies of all projects. The servers with process driver connection have access to the file server
and can configure the projects on the file server. The file server can be used for configuration
only.
The file server can be adapted to specific demands, as necessary, by adding further hardware
components. This enables, for example, the production of mirrored disks for backup security.
Long-term archive server
A long-term archive server is used to save archive backup copies. A server without process
driver connection is used as a long-term archive server onto which the severs with process
driver connection transfer their archive backup data copies. Access can be made to the
archived data on the long-term archive server with external applications using OLE-DB, for
example.
Central Archive Server
You can save process values and messages of all connected WinCC servers on a centralized
archive server (for example, Process Historian). You can display the saved process values
and messages, as usual, on the process screen in Runtime in WinCC Online Trend Control
or WinCC Alarm Control. Furthermore, you have direct access to archived process values and
messages using defined interfaces, such as OLE-DB. In this way, you can make available
important production data, for instance, throughout the company for analyzing purposes.
Server-server communication
During communication between two servers, one server accesses data on another server.
One server can access the data from up to 18 other servers or redundant pairs of servers. The
server accessing the data behaves as a client in respect of the configuration and operation,
except that a standard server cannot be configured.
Each server making access requires a WinCC server license. When the system is being
configured, the accessing server must be included in the quantity structure.
Standard server
In distributed systems, your data is allocated server prefixes from specific servers so that
WinCC controls can display messages and process data.
In a distributed system, a standard server is configured for clients so that data, to which no
unique prefix has been specified, can be requested from the standard server. If no standard
server is defined, an attempt is made to access the corresponding data locally. If there s no
local data management (e.g. messages and archives), access is rejected and an error
message issued.
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1.4 Client/server scenarios
Preferred server
If you use redundant servers in your multi-user system or distributed system, configure a
preferred server among the clients.
A preferred server is the server in a redundant server pair which has priority for a client in a
multi-user system. The preferred server can be selected separately for each client in order to
ensure the operability of the system.
See also
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
System Behavior in Runtime (Page 55)
Client Configuration (Page 29)
Server Configuration (Page 16)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.5 Server Configuration
1.5
Server Configuration
1.5.1
Server Configuration
Introduction
A server within a WinCC network can fulfill the following tasks:
● Connection to the process
● Acquisition of the process values
● Archiving messages and process values
● Providing clients with data from the process
● Providing clients with the configuration data
The tasks assumed by the individual servers can be distributed according to technological or
functional aspects:
● Technological aspect: Each server manages a specific section of the process/system.
● Functional aspect: Each server fulfills a specific task in runtime in respect of the entire
process, e.g. alarm logging or archiving.
Configuration Steps
Configuring a multi-user system
In the case of a multi-user system, several clients are configured which display the view from
one server in runtime. The clients receive data exclusively from one server and have no
individual configuration.
Proceed as follows to configure a server in a multi-user system:
1. Creating a new project, of the "Multi-User Project" type, on the server.
2. Configuring the necessary project data (pictures, archives, tags...) on the server.
3. Including clients which are supposed to configure or be monitored remotely into the
computer list at the server.
4. Assigning operating rights for clients to enable remote configuration.
5. Activating the automatic package import at the server.
6. Configuring client properties in server project (Start picture, Lock key combinations...).
Configuring a Distributed System
In a distributed system, clients are configured with views on several servers. The clients have
their own projects with local data. Data updated by the server is transferred to the clients via
the package export feature.
Proceed as follows to configure a server in a distributed system:
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1.5 Server Configuration
1. Creating a new project, of the "Multi-User Project" type, on each server.
2. Configuring the necessary project data (pictures, archives, tags...) on each server.
Depending on the distribution (technological/functional), it can also be related to specific
project data, e.g. only archives.
3. Clients which should be capable of remote configuration must be registered in the computer
list on the server.
4. Assigning operating rights for clients to enable remote configuration.
5. Configuring the package export (manually or automatically).
6. Configuring the client projects on the clients.
7. Making the server data (packages) available to the clients.
Note
Always configure the sever of a client/server system ahead of the associated clients.
See also
How to Configure a Preferred Server (Page 39)
Configuring Clients in the Server Project (Page 26)
How to Configure the Package Export (Page 22)
How to Configure Operator Authorization (Page 20)
How to Register Clients in the Computer List (Page 19)
Creating a new project on the server (Page 17)
Client Configuration (Page 29)
Client/server scenarios (Page 13)
Client/Server Systems in WinCC (Page 8)
1.5.2
Creating a new project on the server
Introduction
When creating a new project in WinCC, select from the project types below:
● Single-user project A project for a standalone operating station which carries out all tasks
in runtime (process driver connection, operating, monitoring, archiving, etc.). Not relevant
for client/server systems.
● Multi-user project: A server project for a multi-user system or distributed system in which
several clients and/or servers are configured.
● Client project: A project for one client within a distributed system which can display views
on several servers.
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1.5 Server Configuration
Procedure
The following procedure describes how to create a server project for a multi-user system or
distributed system:
1. Open a server in WinCC Explorer and select the menu items "File" > "New". The "WinCC
Explorer" dialog opens:
2. Select "Multi-User Project" and click "OK". The "Create New Project" dialog appears.
3. Enter a project name and the name of a subdirectory if the directory name should be
different from that of the project. Normally the "WinCC Projects" folder in the WinCC
installation directory is used as the project path.
4. Click the "Create" button. The project is created and opened in WinCC Explorer. The current
project is automatically a server project.
Note
An existing project can also be converted to a server project by modifying the project type
("Computer Properties" dialog, > "General" tab).
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1.5 Server Configuration
See also
Configuring Clients in the Server Project (Page 26)
How to Configure the Package Export (Page 22)
How to Configure Operator Authorization (Page 20)
How to Register Clients in the Computer List (Page 19)
Server Configuration (Page 16)
Client Configuration (Page 29)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.5.3
How to Register Clients in the Computer List
Introduction
If you wish a client to access a server remotely or in Runtime, this client must be registered in
the computer list of the server.
Requirement
You have created a multi-user project (multi-workstation system or distributed system). The
configuration computer is then automatically a server in the client/server system.
Procedure
1. In WinCC Explorer select "Computer" and then select the pop-up menu item "New
Computer...".
The "Computer Properties" dialog appears.
2. Enter the name of the client computer to be granted access to the current server.
3. Click "OK" in order to register the computer in the project's computer list.
4. Repeat the process for all computers to be granted access to the current server in the client/
server system.
Note
To rename a client computer, delete the selected client computer from the list of
computers. Inlcude the new client computer with the modified name as new computer in
the computer list.
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See also
Server Configuration (Page 16)
Configuring Clients in the Server Project (Page 26)
How to Configure the Package Export (Page 22)
How to Configure Operator Authorization (Page 20)
Creating a new project on the server (Page 17)
Client Configuration (Page 29)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.5.4
How to Configure Operator Authorization
Operator Authorization in WinCC
In order for a client to open and process a server project remotely or in Runtime, you must
configure the appropriate client operator authorizations in the server project. The server
provides the following operator authorization for use:
● "Configure remote": The can open a server project from a remote station and has full access
to the project.
● "Activate remote": The client can activate a server project from a remote station, i.e. include
in the runtime.
● "View only": The WebClient is authorized to monitor the system. Such an operator
authorization is not relevant for the configuration of other clients.
If a client has the authorization to configure a server project the operator authorization can
also be modified from the client in the server project. The computers in the network are not
notified in the case of a modification of the operator authorization, the modification takes effect
when a new client attempts to log in on a server.
The operator authorizations are requested on the client as soon as the client attempts to open,
activate or deactivate a project on the corresponding sever. If the corresponding operator
authorization are not registered on the server, the project cannot be processed. When the
server project has been closed on the client, logging in is requested again when opened again.
Note
The operator authorizations configured are user-related, not computer-related. An operating
authorization assigned is therefore valid for all operating stations with the same login.
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Operator Authorization in the Operating System
In order for clients to access the server project, the corresponding project folder for network
access must be enabled on the server. Set up authorizations in the operating system with all
rights (write, read, modify) for the users who should have access to the projects.
Note
With regard to network security, different Windows operator authorization can be assigned
for the project directories enabled.
Detailed information on the assignment of operator authorization is provided in the Windows
documentation.
Procedure
1. Open User Administrator in WinCC Explorer.
2. Select the user to be edited from the list of users.
3. Activate the "Configure Remote" authorization and "Activate Remote" for a user who should
be assigned full authorizations to the server project.
4. Close the User Administrator.
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See also
Configuring Clients in the Server Project (Page 26)
How to Configure the Package Export (Page 22)
How to Register Clients in the Computer List (Page 19)
Creating a new project on the server (Page 17)
Server Configuration (Page 16)
Client Configuration (Page 29)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.5.5
How to Configure the Package Export
Principle
Packages are data packets with all current configuration data (tags, messages, archive, etc.)
which are provided to all connected clients in a distributed system or multi-user system. The
packages are exported from the server and imported to the clients.
The first ever export at the server and import at a client is done manually. All further update of
the packages in server and client can be executed automatically. You can adjust the
parameters when package update should occur, and the causes for initiating this update. For
instance, you transfer the packages during commissioning manually to the clients to distribute
the configuration data for the first time to the clients. To keep data on the clients updated you
can then configure automatic package update on each modification of server data.
Note
If a project containing packages already created is copied onto another server, adapt the
computer name to the copied project in the WinCC computer properties according to the new
computer. If you regenerate packages in the copied project, you might have to update the
name of the computer in the "Package Properties" dialog box.
When server-server-communication is selected, one server accesses the data of another
server. The accessing server behaves at that moment like a client regarding the imported
packages. So, in the description below, the details referring to the client are applicable to it.
The configuration data can be updated during normal operation either manually or
automatically:
Manual Creation of Packages
In case of demand, new packages are manually created at the server. These are available to
the clients for importing.
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Automatic Package Update
With the function "Implicit Update", you can automate package export at the server as well as
package import at the client.
The options displayed in the dialog "Configuration Implicit Package Update" on the server
affects both the export of the packages from this server and the import of packages from other
servers. You can see this in the columns "Import" and "Export" in the tables below.
In the dialog, you have the following possibilities for WinCC
Setting for WinCC CS
Import
Export
Meaning
Update server data when project is
opened
X
Client imports whenever the project is opened
Automatic update when notified
X
The client always imports on receipt of a notification when
the following conditions are fulfilled:
● The server setting "Notify after export" has been
activated.
● The project is not activated.
Monitor changes to the configuration
data.
X
Server exports the package
● when the project is opened
● Generate server data when
project is opened.
● when the project is closed
● on every project data change
● Generate server data when
project is closed.
● Generate Server data
immediately when changes are
made
Notify after export
X
Server sends notification after package export
This setting should be activated if the client setting
"Automatic update when notified" should become effective.
Automatic import
X
Server reimports its own exported package
● to make configurations independent of a special server
with the symbolic computer name, e.g. "Tags".
● with views of a special server for clients without their
own projects.
Setting for WinCC RT
Import
Export
Meaning
Update server data when
project is opened
X
Client imports whenever the project is activated
Automatic update when
notified
X
The client always imports on receipt of a notification when the
following conditions are fulfilled:
● The client setting "Automatic update when notified" is
activated.
● The project is activated.
Note
Do not use automatic package export if project data must be changed frequently, e.g., during
commissioning or during the use of configuration tools.
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To configure the export package, use the server data editor in the WinCC Explorer.
Requirement
The server project must be open.
Procedure
Manual package export
1. Go to "Server data" in WinCC Explorer and select "Create" in the shortcut menu.
2. In the "Package Properties" dialog box specify the symbolic and the physical server names.
This information identifies the origin of the package on the client.
Define the physical and symbolic computer names of the server as soon as possible during
configuration. If the symbolic computer name is changed, it must be adapted in all
configuration data.
The symbolic computer name is generally comprised of a combination of the project name
and physical computer name.
3. Click "OK". The server data is created. This may take some time, depending on the size of
the configuration.
Results
The package with the server data is located in the WinCC Explorer in the list under "Server
data". The packages are saved in the project directory under <project_name>\<computer
\packages>\*.pck in your file system.
The clients can then import the packages.
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Automatic package export
1. Go to "Server data" in the WinCC Explorer and select "Implicit update" in the shortcut menu.
2. Select the required options. Multiple selection is possible.
3. Click "OK" to confirm your choice.
Results
The packages with server data from the own server are generated at the moment you have
selected, or packages already imported from other servers are updated, on closing the project,
for instance.
Note
In WinCC projects that were created with the SIMATIC Manager, the "Server data" shortcut
menu does not contain the options "Create..." and "Implicit Update...": This also applies to
WinCC projects created in WinCC and subsequently imported into SIMATIC Manager by
using the function "Import WinCC Object". This type of projects are also referred to as TIA
projects.
If you copy a TIA project with WinCC Explorer and then edit the copy with WinCC Explorer,
the shortcut menu of "Server data" includes the menu items "Create..." and "Implicit Update...".
Display of Generated Packages
When the packages have been generated, they are displayed in the WinCC Explorer data
window as follows:
Keyboard, right: Loaded package
Keyboard, left: Package exported from the server
: Loaded package without standard server
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: Loaded package with standard server
: Server export package (not reimported)
: Locally created package that was reimported in own project.
See also
Client Configuration (Page 29)
Configuring Clients in the Server Project (Page 26)
How to Configure Operator Authorization (Page 20)
How to Register Clients in the Computer List (Page 19)
Creating a new project on the server (Page 17)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.5.6
Configuring Clients in the Server Project
Principle
If a multi-user system is configured in which several clients display a view of precisely one
server, do not create local projects for the clients, but configure the client behavior in the server
project.
Requirement
The clients which should display the server data have been registered in the server's computer
list. The clients only attempt to access one specific server. That server must not import
packages form other servers. The server project is open on the server.
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Procedure
1. Open the computer list in WinCC Explorer on the server.
2. Select the client to be configured and then select the "Properties" item from the pop-up
menu:
The "Computer Properties" dialog for the client opens.
3. On the Startup tab, check those editors which should be active in Runtime on the client,
e.g. Global Script Runtime, if you work with scripts.
4. Use the "Parameters" tab to select the language in which runtime should be started on the
client. It s possible, for example, to configure two clients which display the same data in
different languages.
5. Specify a start picture for the client on the "Graphics Runtime" tab. The start picture can
be individually selected for each client. Define the window attributes here, if necessary.
6. Confirm your settings with "OK".
7. Configure the properties of the other clients in the project in the same way.
8. Open the "Implicit Update" entry in the pop-up menu of the Server Data editor in the server
project. Activate the "Automatic import" setting.
9. Generate the package in the server project.
Note
A client without its own project can only view the server on which the client is configured.
It is not permitted to link this server with another server via server-server communication
or to a central archive server.
Project changes will not be applied if the WinCC Explorer is grayed out.
Initial situation
● A WinCC editor is opened in Runtime on a client without local project.
● WinCC Runtime is deactivated on the server.
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Behavior
Changes in the editor, e.g., to the script in a project function, are not applied.
Solution
You may not configure any data as long as the WinCC Explorer is grayed out on the client
without local project.
See also
How to Configure the Package Export (Page 22)
How to Configure Operator Authorization (Page 20)
How to Register Clients in the Computer List (Page 19)
Creating a new project on the server (Page 17)
Server Configuration (Page 16)
Client Configuration (Page 29)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.6
Client Configuration
1.6.1
Client Configuration
Introduction
A client configuration is only necessary when a distributed system is configured in which the
clients can display the views on several servers. If a multi-user system is configured in which
the clients only display data from one server, no client configuration is necessary. The clients
receive all data and their runtime environment from the server project.
If a client/server system is configured which includes several servers, and clients display
different views on several servers (distributed system), configure an individual client project
for each client. In Runtime, each client can display views on up to 18 different servers or
redundant pairs of servers, e.g. display messages from Server 1 and Server 2, display and
write process values from Server 3, display pictures from Server 4, etc.
Clients in a distributed system can perform the following according to the respective operating
authorizations on the server:
● Monitor the process.
● Monitor and operate the process.
● Remote configuration of projects on a server.
● Remote activation and deactivation of projects on a server.
Note
In order to display data from different servers, the server prefixes (i.e. the server names) must
be unique within the distributed system.
Each client has its own configuration and stores a little administrative client-specific data locally
in the client database, e.g.:
● Local tags
● User administrator data
● Data from the Text Library
● Project Properties
● User cycles
Note
All external data of the server configuration must also be available on the clients so that it
can be displayed correctly in the client project. External data relates to ActiveX Controls which
do not come from WinCC and external graphics which are integrated as OLE objects, for
example.
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Configuration Steps
1. Configuring server projects.
2. Creating and exporting server packages.
3. Configuring the package import on the client.
4. Configuring the client projects on the clients.
Note
If you deactivate Runtime on the server, you must also finish Runtime on the client in order
to continue configuration.
See also
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
Configuring the Start Picture of the Client (Page 42)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Configuring the Import Package (Page 33)
Creating a New Project on the Client (Page 31)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.6.2
Creating a New Project on the Client
Introduction
When creating a new client project in WinCC, select from the project types below:
● Single-user project A project for a standalone operating station which carries out all tasks
in runtime (process driver connection, operating, monitoring, archiving, etc.). Not relevant
for client/server systems.
● Multi-user project: A server project for a multi-user system or distributed system in which
several clients and/or servers are configured.
● Client project: A project for one client within a distributed system which can display views
on several servers.
Note
If a multi-user system is configured in which several clients display a view of precisely one
server, do not create local projects for the clients, but configure the client behavior in the
server project.
Procedure
1. Open a client in WinCC Explorer and select the menu items "File" > "New". The "WinCC
Explorer" dialog opens:
2. Select "Client Project" and click "OK". The "Create New Project" dialog appears.
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3. Enter a project name and the name of a subdirectory if the directory name should be
different from that of the project. Normally the "WinCC Projects" folder in the WinCC
installation directory is used as the project path.
4. Click the "Create" button. The project is created and opened in WinCC Explorer.
Note
It is also possible to convert an existing project to a client project by modifying the project
type in the "Computer Properties" dialog.
See also
Client/server scenarios (Page 13)
Configuring Clients in the Server Project (Page 26)
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
Configuring the Start Picture of the Client (Page 42)
Configuring the Import Package (Page 33)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Client Configuration (Page 29)
Server Configuration (Page 16)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.6.3
Configuring the Import Package
Introduction
For a client to display the process data of different servers in a distributed system, it needs the
information of the corresponding data. Packages with the configuration data are created on
the server in a distributed system for this purpose and the packages are made available to the
clients. The client requires the packages from those servers whose data it wants to use.
Overview
The first ever package export at the server and import at a client is done manually. All further
update of the packages in server and client can be executed automatically. You can set when
the update is to take place and what triggers it.
Note
When server-server-communication is selected, one server accesses the data of another
server. The accessing server behaves at that moment like a client regarding the imported
packages. So, in the description below, the details referring to the client are applicable to it.
The server can reimport its own packages in order to configure tags, for example, independent
of a special server with the symbolic computer.
To complete the package import, use the Server Data editor in WinCC Explorer. There are
three ways to import packages:
Manual loading
Packages generated on the server are loaded on the client. The import process is triggered
manually with the "Load" command. The first import of the packages must be done manually.
Manual Update
Packages already loaded on the client by the server are updated using the "Update" command.
Automatic Update
An implicit package update can be configured on the client, so that the new packages are
automatically updated on the clients when a specific condition is met. However, the first import
of the packages must be done manually.
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Settings
Meaning
for WinCC CS
● Update server data on opening
project
● Automatic update when notified
● Client imports whenever the project is opened
● Server sends notification after package export, client
imports whenever it is notified.
This setting is effective only if the setting "Notify after
export" is activated at the server for package export.
for WinCC RT
● Update server data on opening
project
● Automatic update when notified
● Client imports whenever the project is activated
● Server sends notification after package export, client
imports whenever it is notified.
This setting is effective only if the setting "Notify after
export" is activated at the server for package export.
Requirement
● The packages have been created on the server.
● The client project is open.
Procedure
Manual loading
1. Open the client project on the client.
2. In WinCC Explorer select "Server data" and in the shortcut menu select "Load". The "Open
File" dialog appears.
3. Select the package you want to load and click "OK".
The packages are by default stored in the directory "...\\<Server-Project name>\<Computer
name>\Packages\" under the name "<Project name_Computer name>*.pck". However, it
is also possible to access packages stored on any data medium.
4. Click "Open". The data is loaded. If the corresponding server is not available, the
appropriate fault entry appears on requesting the new package.
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Manual Update
1. Open the client project on the client.
2. In WinCC Explorer select "Server data" and in the shortcut menu select the "Update"
command.
3. The data is updated. If, in the case of a server-server communication, no packages form
other servers are loaded, a fault message appears on the server.
Automatic Update
1. Open the client project on the client.
2. In WinCC Explorer select "Server data" and in the shortcut menu select "Implicit Update":
The "Configuration Implicit Package Update" dialog appears.
3. Select the required options. Multiple selection is possible.
4. Confirm your selection with "OK". The server data is automatically updated on the client,
e.g. on opening a project or following notification via the network. If the corresponding server
is not available, no fault message appears on the client.
Note
If new packages are added or packages are deleted, while the project has been activated
on the client, difficulties in representation can occur. You can remedy this situation by
deactivating the client and then activating it again.
Display of the packages loaded
When the packages have been loaded, they are displayed in the WinCC Explorer data window
as follows:
Keyboard, right: Loaded package
Keyboard, left: Exported, but not yet loaded package
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: Loaded package without standard server
: Loaded package with standard server
See also
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
Configuring the Start Picture of the Client (Page 42)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.6.4
How to Configure a Standard Server
Introduction
Configure a standard server for a client in a distributed system from which data should be
requested if no unique server prefix (e.g. for tags) is specified.
If no standard server has been configured for a component, an attempt is made to access local
client data (e.g. internal tags). If there s no local data management on the client (e.g. messages
and archives), access is rejected and an error message issued.
Requirement
A standard server can only be selected on the client after importing the corresponding
packages.
Procedure
1. Select the "Server Data" entry on the client in WinCC Explorer.
2. Select the "Standard server..." item from the pop-up menu.
The "Configure standard server" dialog appears.
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3. Click the entry for the component required at the symbolic computer name. Select a server
from the drop-down list box. The list contains symbolic computer names of all packages
loaded on the client.
4. The components listed in the dialog are dependent on the WinCC installation. If options
have been installed, the component options (e.g. SSM - Split Screen Manager) can be
listed in addition to the components displayed.
5. Click "OK" to confirm your choice.
When must a standard server be selected for a component?
Alarms
If operating messages should be generated on the client, a standard server for alarms must
be specified beforehand. No Alarm Logging can be configured on the client itself and the
messages must be issued on a server.
A client can retrieve user-defined selections of messages centrally from the default server.
Archives, Pictures, Text Library, User Archive, Tags
When a standard server has been configured on the client, data from these components for
which no valid server prefix has been generated, is searched for on the defined standard
server. If no standard server has been configured on the client, no server can be located for
this data since there is no server prefix.
Setting a default server for archives, pictures, text library, user archives, and tags is only makes
sense for for special applications. If you are not explicitly prompted to set a specific server by
SIMATIC documentation or Customer Support, leave the setting on "No Standard Server" in
the "Server Data" editor in the "Configure Standard Server".
Note
If a standard server is entered for variables on a WinCC client, no status information is shown
in the tooltip in Runtime for tag management.
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Select standard server when using Basic Process Control
Alarms
For alarms, you always have to indicate a standard server.
Tags
Never indicate a standard server for variables.
SSM (Split Screen Manager)
Always indicate a standard server for the SSM component.
When trend groups are combined on a WinCC client, the trend groups are saved on the
standard server and its redundant partner server. Other WinCC clients can indicate this server
also as standard server for the SSM component. Thus the configured trend groups are be
made available to these WinCC clients as well. If no standard server is configured on the
WinCC client for the SSM component, the compiled trends are locally saved on this computer.
Other WinCC clients are not allowed to display such trend groups in WinCC Online Trend
Control. It is principally be impossible to display these trend groups in the server project.
If image compilations are configured on the WinCC client, they are saved on this server only
if a standard server is indicated for the SSM component. If no standard server is indicated, the
WinCC client image compilations configured are locally saved and are not accessible for any
other clients. It is principally be impossible to display these screen compilations in the server
project.
If redundancy is configured on a server, the data of the trend groups and of the image
compilations is also matched on its redundant partner server. On redundancy changeover, all
trend groups compiled and all image compilations can be requested from the WinCC clients.
See also
Configuring the Import Package (Page 33)
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
Configuring the Start Picture of the Client (Page 42)
How to Configure a Preferred Server (Page 39)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.6.5
How to Configure a Preferred Server
Introduction
You configure the preferred server on a client of a distributed system or multi-user system if
redundant servers are used.
A preferred server is the server in a redundant server pair which has priority for a client in a
distributed system. The client receives data from the preferred server as long as it remains
available.
The preferred server can be defined individually for each client so that the clients can be
distributed among the redundant servers to ensure the permanent operability. In the case of
a network interruption to the defined server, the values on the clients are no longer updated
and operation is no longer possible. Other clients which are simultaneously switched to the
redundant partner are not affected. This means that, if necessary, the system operator can
switch to these clients.
By distributing the clients among the redundant servers, the load is distributed and the
performance of the entire system is improved.
Note
The configuration of redundant systems in WinCC is described under the topic "Redundant
Systems".
Procedure
The preferred servers for the clients in distributed systems and multi-user systems are
configured differently:
Configuring a preferred server for clients in a distributed system
1. Select the "Server Data" entry on the client in WinCC Explorer.
2. Select "Configuring" from the shortcut menu.
The "Configure server data" dialog appears.
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3. The list contains the symbolic and physical computer names of all servers from which
packages are provided on the client. If a redundant server is available for a server, the
physical computer name is specified. Select a server from the redundant server pairs as
the preferred server.
A redundant server pair in a distributed system has only one, common, symbolic name, by
which the server is addressed.
4. Conclude the input by clicking "OK".
Configuring a preferred server for clients in a multi-user system
The clients must be entered in the server's computer list.
1. Select the "Server Data" entry on the server in WinCC Explorer.
2. Select "Client-specific Settings" from the shortcut menu.
The "Client-specific Settings" dialog appears.
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3. A list of all clients entered in the server's computer list appears. Select the required client
and select one of the two redundant servers from the "Preferred Server" column as the
preferred server.
4. Conclude the input by clicking "OK".
Runtime behavior of the client
The client remains connected to the specified redundant server as the preferred server as long
as it is available.
If the preferred server fails, the client switches to the redundant partner server. When the failed
preferred server becomes available again, the client switches back to it.
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See also
Configuring the Start Picture of the Client (Page 42)
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
How to Configure a Standard Server (Page 36)
Configuring the Import Package (Page 33)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.6.6
Configuring the Start Picture of the Client
Introduction
Any picture in the distributed system can be used as the start picture of a client. This can be
a picture from the server, a local picture on the client or any other picture.
The following description explains how to use a picture on the server as a start picture (start
screen).
Requirement
The server packages whose picture is to be used as the start picture are imported on the client.
Procedure
1. Open the client project on the client.
2. Select the computer in WinCC Explorer and then select the "Properties" option from the
pop-up menu.
3. Activate the "Graphics Runtime" tab.
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4. Enter the name of the server computer as the start screen name and then the picture to be
used, e.g.:
5. It is also possible to search for pictures using the "Search" button. The selection dialog
displays pictures of all server packages loaded on the client.
6. Conclude the input by clicking "OK".
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See also
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Configuring the Import Package (Page 33)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.6.7
Displaying Pictures from Different Servers
Principle
Pictures from different servers can be displayed in picture windows inside the basic screen
configured on the client:
Data from a server can be accessed from each picture window. In order to integrate a server
picture as a picture window in a client picture, the server prefix must precede the picture file
name.
Note
The server prefixes must be unique within the distributed system.
Server pictures can be inserted in picture windows via a script (C or VBS) and via direct linking.
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The pictures on the server must be adapted to the picture client's window size.
Requirement
The packages on the corresponding server must be imported on the client.
Procedure
1. Open the picture on the client to be inserted in the picture window.
2. From the standard pallet in Graphics Designer, select the "Picture Window" from the group
of smart objects and insert it in the picture.
3. Open the Properties dialog by double-clicking the picture window.
4. From in the "Miscellaneous" group, double-click the "Properties" tab and select the "Picture
Name" attribute in order to search for a picture.
or:
In the "Picture Name" attribute, double-click the "Static" column to enter a picture name
directly in the form "<Server_prefix>::<Picture_name>".
5. Close the Properties dialog.
Note
If a server prefix is not automatically specified in the "Picture Name" attribute, the server prefix
can also be entered via the "Server prefix" attribute. After double-clicking the "Server prefix"
attribute, a selection list containing all servers appears whose packages are on the client.
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See also
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Configuring the Import Package (Page 33)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.6.8
Configuring a Picture Change on the Client
Introduction
It is possible to use a client in a distributed system to configure a picture change on a server
picture by prefixing the server prefix to the target picture. There is no difference in configuration
with WinCC whether configuring a normal" picture exchange or changing a basic picture.
Procedure
The following procedure describes an example of how to configure a button to initiate a change
of picture on the server.
1. Open a picture of the client project in Graphics Designer.
2. Insert a button in the picture from the group of Windows objects.
The Configuration dialog appears.
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3. Enter the server prefix as the target under "Change Picture" and the picture name in the
form "<server_prefix>::<picture_name>", e.g.:
4. Close the dialog by clicking "OK".
Alternative Procedure
The picture change can also be configured in the "Properties" dialog of the button:
● Use the "Events "tab to configure a direct connection, for example, with a mouse click.
● Enter the picture name with server prefix as the constant of the direct connection.
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See also
Server Configuration (Page 16)
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Using Data from Different Servers (Page 49)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Configuring the Import Package (Page 33)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.6.9
Using Data from Different Servers
Principle
The basic picture of a client in a distributed system and all objects contained in it are configured
directly on the client. Access to data from several servers can be made from each basic picture,
e.g.:
● An output field for the process value from Server_1 which monitors system part A, an output
field for the process value from Server_2 which monitors another part of the system.
● Trend displays which display data from different system pats/servers in comparative form.
● Message windows which display the messages from several servers.
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Basic pictures, projected on a client, can be copied to other clients. To do this, the server
packages which can be addressed in the basic picture must be available on the target client.
Note
All tags configured on the server which were transferred with a package to a client are
available on the client in the Tag Selection dialog.
C-actions and functions or VBS actions and procedures from Global Script must be available
on the client in order to execute them. Global C and VBS scripts are not component parts of
the packages.
Procedure
The following procedures describe examples of how the process data from two different
servers can be displayed in a trend display on the client.
1. Open the client project on the client.
2. Use Graphics Designer to configure the picture to be used as the basic picture.
3. Insert the WinCC Online Trend Control in the basic picture from the "Controls" tab in the
Object Pallet. The "Properties of WinCC Online Trend Control" dialog opens.
4. Select "Online Tags" as data source when the current process is to be monitored.
5. Activate the "Trends" tab.
6. Select a tag for the first trend whose process values should be displayed by selecting
"Selection of Archives/Tags" and then the "Selection" button.
7. Enter the tag names in the following form: "<server_prefix1>::<variable_name>". Confirm
with "OK".
8. Click the "+" button in the "Trend" tab in order to add a second trend.
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9. Connect the second trend with a tag from the second server in the form:
"<server_prefix2>::<variable_name>".
10.Confirm your settings with "OK".
Results
In Runtime, two trends appear in the trend display on the client: Trend 1 shows the data from
server 1, trend 2 data from servers 2.
See also
Configuring the Import Package (Page 33)
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.6.10
Displaying Messages from Different Servers
General procedure
Messages from several servers can be displayed on a client in a distributed system as follows:
● Configure a message display for each server whose messages are to be displayed
● Specify several message servers as source in a message display
Note
If an Alarm Control is integrated in a basic picture of the client, the associated server
picture is displayed as the basic picture on the client on executing the "Loop in Alarm"
function. It is not possible to return to the original basic picture.
If an Alarm Control is integrated in a picture window of the client, the associated server
picture is displayed in the "Loop in Alarm" picture window on executing the "Loop in Alarm"
function. Return to the basic client picture by clicking the relevant button.
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Procedure
1. Open the client project on the client.
2. Use Graphics Designer to configure the picture to be used as the basic picture.
3. Insert the WinCC Online Trend Control in the basic picture from the "Object Pallet", "Alarm
Controls" tab. The "Properties of WinCC Alarm Control" dialog opens.
4. When the messages of all connected servers in this Alarm Control are to be displayed,
select "Server Selection" and activate the "All Servers" check box.
5. If only the messages from a specific server are to be displayed, deactivate the "All Servers"
check box and click the "Selection" button to select a WinCC server from the network .
6. Close the dialog by clicking "OK".
Note
In multi-user systems, you must ensure that contents displayed in the selection dialog on a
client are named identically on all servers.
See also
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Configuring the Import Package (Page 33)
Creating a New Project on the Client (Page 31)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.6.11
Configuring a Message Sequence Report for Messages from Several Servers
Principle
If messages from several different servers are to be displayed in a basic picture on the client,
it is also possible to display the corresponding message sequence report. The messages from
all servers are collected and output in the correct sequence.
WinCC provides a preconfigured layout and print job for the message sequence report.
Procedure
1. Open the "@CCAlgRtSequence.RPl" layout in the WinCC Explorer Report Designer. The
Line Layout Editor appears.
2. Click the "Selection" button. The "Protocol Tables Selection" dialog appears.
3. Use the "Add Server" button to insert servers whose messages are to be logged in the
message sequence report to the list of "Selected Servers". Only these servers are displayed
whose packages have been imported on the client.
4. Transfer the message blocks to be logged to the "Column Sequence Of The Report" list
using the arrow buttons.
5. Click "OK" to confirm your entry.
6. Open the "@Report Alarm Logging RT Message sequence" print job in the WinCC Explorer.
7. The layout has been stored under an individual name, select the layout from the "Layout"
list. Activate the "Line layout for line printer" check box.
8. Activate The "Printer" check box on the "Printer Setup" tab.
9. Select the printer from the list of connected printers on which the report is to be printed out.
10.Confirm your settings with "OK".
11.Select the Client Computer in the WinCC Explorer and then the "Properties" command from
the pop-up menu. The "Computer Properties" dialog appears.
12.Activate "Message Sequence Report" on the "Startup" tab.
13.Confirm your settings with "OK".
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See also
Creating a New Project on the Client (Page 31)
Configuring a Message Sequence Report for Messages from Several Servers (Page 53)
Displaying Messages from Different Servers (Page 51)
Configuring a Picture Change on the Client (Page 47)
Displaying Pictures from Different Servers (Page 45)
How to Configure a Preferred Server (Page 39)
How to Configure a Standard Server (Page 36)
Configuring the Import Package (Page 33)
Client Configuration (Page 29)
Server Configuration (Page 16)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.7
System Behavior in Runtime
1.7.1
System Behavior in Runtime
Introduction
A client/server system in WinCC can be used to distribute the system configuration to several
servers in order to reduce the load applied to the individual servers. The data configured on
the servers can be displayed by clients, whereby a client can display data from up to 18 different
servers or redundant server pairs in Runtime.
Behavior of Editors in Runtime
Archives
If the archive system is activated on an operating station, the Tag Logging Runtime operates
on the servers as archive server, on the clients as archive client. Only the archive server
accesses the database and compiles and archives the process data. The clients receive
archive data from the archive server.
The archive data can be displayed as a table or graphic on every client on which the Tag
Logging Runtime runs. The data to be displayed always comes from the archive server. All
operations on the client are transmitted to the server and the result of the processing is
transferred back to the client.
Graphics
When a picture is called in by a client in Runtime, Graphics Runtime initially searches for locally
stored pictures. If no picture with the corresponding name is found locally, a search is made
in the project folder on the server. If no picture is available, the corresponding message
appears.
If a picture request requires an exchange with another editor (Alarm Logging, Global Script),
the exchange is local. A picture can be opened and processed by several operating stations
in Runtime.
Note
The picture build up on the client is quicker when the respective picture is copied locally onto
the client. Enter the relevant directory in the client's "Computer Properties" dialog in the
"Runtime" tab. It is also possible to specify whether the directory is to be used always or by
preference.
If a picture is modified in the server project, the data must be updated manually by copying
the modified picture to the local directory of the client again.
Messages
If messages are displayed on a client, the client receives the data displayed from the server.
The message server receives the configured data from the database.
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Archive data and message lists can be displayed on every client. The data to be displayed
always comes from the message server. When new messages are received, the messages
are archived in the message server.
When an operating acknowledges an alarm, the acknowledgement is transferred to the
message server. The server enters the change of status in the archive and distributes the
notification to all participating clients. The same process applies to the locking of messages.
If a message server is not available in Runtime, the corresponding message appears in the
message window instead of the messages. When the server becomes available again,
messages are displayed in the message window again.
Reports
The protocol system in WinCC does not detect Runtime in the real sense of the meaning.
Protocols and print jobs can be configured and executed at any time. Only print jobs which are
to be display the archive or process data are dependent on Runtime.
The protocol system is automatically started on every client during the startup routine. The
server operates as a protocol server, the clients as protocol clients. During the startup routine,
the client log in on the server and receive the current information on the print jobs available
and their status. If a print job is started on a client, it obtains the related data from the server
database. The print job is started locally. The protocol server receives the current data
concerning the print job status from the client and transfers the information to the other clients.
Scripts
If an operating station activates a project locally, the server's project functions and standard
functions are loaded locally.
User Administrator
The operating rights are checked by the Runtime component of the User Administrator. The
user administrator Runtime component is automatically started on every computer when
WinCC is activated. If the login is changed, the current operating rights list is loaded from the
local database.
Text Library
If the server project is activated, Text Library Runtime runs on the server as text server and
on the clients as text client. The data is always read from the server database.
Behavior in the event of system errors
If a server is not available, the clients poll the server cyclically until is has been started up
again. Data on the server cannot be displayed in the case of system faults, all operable graphic
objects, for example, are switched inactive.
Note
If problems develop on a client concerning the running WinCC, you can restart the client to
reconnect to the server without affecting the server.
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See also
Starting Up the Server (Page 57)
Specifics of Communication for a Server with Several Network Cards (Page 59)
Shutting Down the Client (Page 61)
Shutting Down the Server (Page 61)
Starting Up the Client (Page 58)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.7.2
Starting Up the Server
Principle
Servers in a client/server system can be started up independently of the clients. As soon as a
server has been started up, it makes its services available to the clients and retrieves
information on all participants in the network.
The current status of all servers can be viewed in the "WinCC Projects" data window. Open
"WinCC-Projects" using the Windows Explorer:
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If a server fails during normal operation, the data on the clients can no longer be updated and
information is provided on the failed server.
Note
If a file server is used in the client/server system, the system is only ready for operation again
when both the file server and the WinCC server have been started up.
Remote Activation
A server can also be started from another remote computer (client or server). The procedure
for this is described in "Activate project".
See also
Specifics of Communication for a Server with Several Network Cards (Page 59)
How to Activate a Project (Page 69)
Shutting Down the Client (Page 61)
Shutting Down the Server (Page 61)
Starting Up the Client (Page 58)
System Behavior in Runtime (Page 55)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.7.3
Starting Up the Client
Principle
The clients in a client/server system boot independently of the servers.
When a client in a client/server system starts up, it receives all current information on the
following via the WinCC servers known to it in the network, e.g.:
● Project names
● Server names and IP addresses
● Project status of the servers (configuration or Runtime)
The user can view the corresponding information in the list in the "WinCC Projects" dialog. If
the status of a server changes, the "WinCC Project" dialog of all participating computers is
updated.
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Server not available.
If servers are not available, a corresponding error message is issued. In addition, graphic
objects, for example, who receive their data from the server , are switched inactive.
Scripts can be used to configure the display of connection faults to the client.
See also
Specifics of Communication for a Server with Several Network Cards (Page 59)
How to Activate a Project (Page 69)
Shutting Down the Client (Page 61)
Shutting Down the Server (Page 61)
Starting Up the Server (Page 57)
System Behavior in Runtime (Page 55)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.7.4
Specifics of Communication for a Server with Several Network Cards
Introduction
If several network cards or SIMATIC NET SOFTNET drivers are installed on a WinCC server
for the process connection and are operated with an active TCP/IP protocol, communication
of the server with WinCC clients could be affected.
A possible cause could be that each network card or the SOFTNET driver in the server has
its own IP address. Therefore, under certain circumstances, it is possible that when the server
is logged on in the network, Windows attempts to establish a connection via the wrong IP
address, e.g. via that of the SOFTNET driver. If the attempt to establish a connection fails,
Windows marks the communication via this IP address as defective but does not attempt to
establish a connection via another IP address available on the computer.
In this case, appropriate modifications must be made by the network administration.
Checking the sequence of the network cards
If several network cards are installed on the computer, the network card for the terminal
connection must be in first place.
Check the sequence in the Windows Control Panel under "Network connections". In the
"Advanced" menu select the menu command "Advanced settings". The sequence is available
in the "Advanced" dialog on the "Network cards and connections" tab in the "Connections"
section.
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Diagnostics
Using the directory "Simatic Shell", you may check the configuration of the network card. If
you determine that a computer indicates an address with an incorrect, i.e. inaccessible network
area, select a different network adapter.
Procedure
1. In the navigation window of Windows Explorer, click the "Simatic Shell" directory.
2. In the shortcut menu of the directory, select the "Settings..." dialog. The currently used
network interface is identified through the blue lettering.
3. If you wish to change the network interface, click the desired network card in the "Network
Adapter" area.
A check is also to be made in the configuration of the SOFTNET driver on the server whether
the Windows utilities not required for the process connection can be deactivated.
If a connection can still not be established after checking these points, please contact Customer
Support.
See also
How to Access Computers Outside a Subnet (Page 63)
Remote Configuration (Page 62)
Starting Up the Client (Page 58)
Starting Up the Server (Page 57)
System Behavior in Runtime (Page 55)
Client/Server Systems in WinCC (Page 8)
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1.7.5
Shutting Down the Server
Principle
If a server in the client/server system is shut down, it can no longer provide the connected
clients with process data. It is simultaneously logged off from the system and is marked in the
"WinCC Projects" dialog project list as deactivated.
Remote Deactivation
A server can also be shut down from another remote computer (client or server). The procedure
for this is described in "Deactivate project".
See also
Starting Up the Client (Page 58)
How to Deactivate a Project (Page 71)
Shutting Down the Client (Page 61)
Starting Up the Server (Page 57)
System Behavior in Runtime (Page 55)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
1.7.6
Shutting Down the Client
Principle
When a client in a client/server system is shut down, it is logged off from the system.
See also
How to Deactivate a Project (Page 71)
Shutting Down the Server (Page 61)
Starting Up the Client (Page 58)
Starting Up the Server (Page 57)
System Behavior in Runtime (Page 55)
Client/server scenarios (Page 13)
Configurations and Quantity Structure (Page 10)
Client/Server Systems in WinCC (Page 8)
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1.8 Remote Configuration
1.8
Remote Configuration
1.8.1
Remote Configuration
Principle
Clients provided with the corresponding operator authorizations can operate a server project
from a remote station, e.g.:
● Remote configuration of a server project
● Activate a server project
● Deactivate a server project
For remote configuration, the "Simatic Shell" dialog is available which you access through
Windows-Explorer.
Function of Simatic Shell
In the "Simatic Shell" dialog you can view the enabled servers and projects of your ClientServer System available through the network. These include all projects which run under a
demo license.
The window can be used to access an enabled server project from a client:
● open a project remotely
● to activate a project remotely
● to deactivate a project remotely
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See also
How to Deactivate a Project (Page 71)
How to Activate a Project (Page 69)
How to Edit Server Project Pictures (Page 68)
How to Open a Project for Editing (Page 67)
Access to Projects from Several Clients (Page 65)
How to Access Computers Outside a Subnet (Page 63)
Client/Server Systems in WinCC (Page 8)
1.8.2
How to Access Computers Outside a Subnet
General procedure
Computers in your network downstream a router can be made known to the system via "Simatic
Shell". "Simatic Shell" is part of WinCC and is used for central maintenance and diagnostics
all computers integrated in the client-server system.
Using the settings in "Simatic Shell", you introduce a computer within your subnet downstream
from your router as an "Agent" who distributes the information from other computers to the
computers within the subnet.
After having logged this computer on, all participating computers in the system can
communicate even beyond the router limits. Each computer added to an existing group is
informed of the current status of all computers, including those beyond the router limits. When
the status of a computer changes, a message is issued to all participants, e.g.:
● If a computer has activated a project
● If a computer is shut down.
● If a computer is started up and thus enters the group.
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Procedure
1. In Windows-Explorer of the client, select the "Simatic Shell" entry. The "Simatic Shell"
window appears.
2. Select any entry in the "Simatic Shell" dialog in the navigation window. In the shortcut menu
of this entry, select the menu item "Settings...". The "Settings" dialog opens.
If the navigation window of the "Simatic Shell" does not contain an entry, call up the shortcut
menu in the blank window.
3. Check the setting in the field "Multicast Life Time (TTL)". The value gives the maximum
number of route jumps between various subnets (IP Parameters TTL).
4. Under "Multicast Proxy", enter the address for the computer intended as "Agent" for the
subnet. This may be any computer in the subnet (client or server).
Use the "Add" button to add the computer in the list of agents.
5. Confirm your settings with "OK".
See also
Access to Projects from Several Clients (Page 65)
How to Deactivate a Project (Page 71)
How to Activate a Project (Page 69)
How to Edit Server Project Pictures (Page 68)
How to Open a Project for Editing (Page 67)
Remote Configuration (Page 62)
Client/Server Systems in WinCC (Page 8)
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1.8 Remote Configuration
1.8.3
Access to Projects from Several Clients
Configuration Options
Depending on the type of data, one or several clients may access the server project during
remote operation. A differentiation is made between data stored in a server database (alarm
logging, tag logging, tags, user admin, text library) and data based on files (pictures and
graphics, reports, scripts).
Note
Data from the server database can be processed by several clients at the same time.
Observe, in this case, that modifications from the last client that stored the data are stored
when several clients access the same data. In the case of data from the server database, all
data in the respective editor is stored, even if only a few values were modified.
In the case of data stored in the files, the data is blocked for further access when the file is
open.
Archives (tag logging)
Archives are stored in the server database. The data in Tag Logging can be modified in
Runtime. The modifications are distributed by the server to all participating clients.
Pictures
Pictures are stored as files on the server or file server. When a client accesses a picture on
the server, the picture blocked for other clients. Different project pictures can be opened by
different clients.
Pictures can be changed in Runtime and, after being stored, are available the next time the
picture is selected. Pictures can also be stored locally for editing but matching them with the
respective ones on the server must be carried out manually.
Messages
Messages are stored in the server database. The data in the alarm logging system can be
modified in Runtime. The modifications are distributed by the server to all participating clients.
Reports
Protocols are stored centrally in the server's project folder. The protocol data is divided into
layouts (files) and print jobs (entries in the project data base). Only one client can configure
the protocol system to the respective server.
Protocols can be stored locally to be edited, but matching them with the respective ones on
the server must be carried out manually. It is not intended to enable modifications to the
protocol system in Runtime because protocols can be executed independent of Runtime.
Scripts
Scripts are stored centrally in the server's project folder. Project-specific scripts can be defined
individually on local computers. Scripts are stored in files. Graphics Designer actions are stored
in the picture. During editing, the files (scripts or pictures) are blocked for other clients. If there
is no connection to the server, scripts can be modified locally, but matching them with those
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on the server must be performed manually. Scripts can be modified in Runtime. The server
distributes the modifications to all participating computers.
Note
If a client without access to the server configures a script, that script is stored locally. If the
script is to be available on the server, the script must be copied in the appropriate server
folder manually.
Texts in the text library
Texts in the text library are stored in the server database. The text objects are stored
individually. Texts can be modified in Runtime. The server distributes the modifications to all
participating computers. Updating occurs in the configuration language defined on the local
computer.
Note
Certain WinCC editors, such as Alarm Logging and User Administrator, access the same
database table in the text library during configuration. Therefore, these editors can only be
operated simultaneously on one operating station.
Tags
Tags are stored in the server database.
Note
If a client project is deactivated in order to modify a tag, the modifications only take effect
after restarting all computers on which the project was active at the moment it was changed.
User Administrator
The user administrator operating rights are stored in the server database. User administrator
data can be modified in Runtime. The participating computers are not notified. The new data
takes effect when the client is logged in again.
See also
How to Activate a Project (Page 69)
How to Deactivate a Project (Page 71)
How to Edit Server Project Pictures (Page 68)
How to Open a Project for Editing (Page 67)
How to Access Computers Outside a Subnet (Page 63)
Remote Configuration (Page 62)
Client/Server Systems in WinCC (Page 8)
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1.8 Remote Configuration
1.8.4
How to Open a Project for Editing
Principle
A server project can be edited by a client in configuration or Runtime operation of the project.
Updating the data in Runtime is dependent on which data is configured.
The "Simatic Shell" dialog in Windows Explorer provides you with a list of all server projects
within the network enabled for configuration. You obtain additional information on the selected
server, e.g., which mode is currently active (configuration/Runtime).
Several clients can open and edit the same project simultaneously.
Requirement
In order to open a server project on a client for remote editing, the following conditions must
be fulfilled:
● The user registered on the client has the operator authorization for "Configure remote" in
the server WinCC project.
● The client has been entered in the server's computer list.
● The project has been enabled for network access
Procedure
1. In Windows-Explorer of the client, select the "Simatic Shell" entry. The "Simatic Shell"
window appears.
In the window list all currently available serves and projects in the network.
Alternatively, open the "Simatic Shell" dialog in a separate window. In Windows Explorer,
select the "Open" command in the pop-up menu of "Simatic Shell".
2. Select a computer in order to display the projects specific to this computer.
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3. From the project list, select the project to be opened and select the "Open" command from
the pop-up menu.
A Login dialog appears.
4. Enter the user name and password for the current computer.
Passwords are case-sensitive.
Click "Start server locally" in the "WinCC Explorer - Server not available" dialog.
The project is opened on the client for configuration.
Note
If you have opened a server project for processing through the client and execute the "Activate
Runtime" command in WinCC, you must observe the following:
If you activate Runtime from a client in a multi-user system, only the client project is activated
even if the server project is open.
If you wish to activate the server project, use the command "Activate Remote" in the "Simatic
Shell" dialog. The same applies to the "Deactivate Runtime" command.
See also
How to Deactivate a Project (Page 71)
How to Activate a Project (Page 69)
How to Edit Server Project Pictures (Page 68)
Access to Projects from Several Clients (Page 65)
How to Access Computers Outside a Subnet (Page 63)
Remote Configuration (Page 62)
Client/Server Systems in WinCC (Page 8)
1.8.5
How to Edit Server Project Pictures
Principle
Pictures on a server can be opened, edited and saved on a remote client. If Runtime is active
while editing, the modifications take effect the next time the picture is activated.
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Since each picture is stored in an individual file, only one client can access a picture at a time.
Access is blocked to the picture for other computers.
Requirement
● The project folder on the server must be enabled for network access.
● The user registered on the client has the operator authorization for "Configure remote" in
the server WinCC project.
Procedure
1. In Windows-Explorer of the client, select the "Simatic Shell" entry. The "Simatic Shell"
window appears.
In the window list all currently available serves and projects in the network.
2. From the project list, select the project to be opened and select the "Open" command from
the pop-up menu.
A Login dialog appears. Enter the user name and password for the current computer.
Passwords are case-sensitive.
In the dialog "WinCC Explorer - Server not available", click the "Start server locally" button.
The project is opened on the client for configuration.
3. Open the desired picture in Graphics Designer on the client.
4. Edit the picture and save it again in the project folder on the server.
See also
How to Deactivate a Project (Page 71)
How to Activate a Project (Page 69)
How to Open a Project for Editing (Page 67)
Access to Projects from Several Clients (Page 65)
How to Access Computers Outside a Subnet (Page 63)
Remote Configuration (Page 62)
Client/Server Systems in WinCC (Page 8)
1.8.6
How to Activate a Project
Principle
A client/server system not only provides the option of remote project configuration but also to
activate and deactivate them remotely.
If you activate a server project from a client by using the "Simatic Shell" dialog, only the server
project is activated. However, if you have opened a server project for processing and activate
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it in WinCC by using the "Start Runtime" button in the toolbar, only the client project is activated
even if the server project is open.
Requirements
In order to open a server project on a client for remote activation, the following conditions must
be fulfilled:
● The user registered on the client has the operator authorization for "Activate remote" in the
server WinCC project.
● The client has been entered in the server's computer list.
● The project has been enabled for network access
Procedure
1. In Windows-Explorer of the client, select the "Simatic Shell" entry. The "Simatic Shell"
window is displayed.
In the "Simatic Shell" dialog you can view the enabled servers and projects of your client/
server system available through the network.
2. Select the project to be activated.
3. Select the "Activate remote" command from the shortcut menu.
A Login dialog appears.
4. Enter the user name and password for the current computer. The project is activated on
the server.
Note
Passwords are case-sensitive.
How to activate an OS computer remotely from an Engineering Station
The following requirements generally apply to an OS project and remote activation:
● Enter the ES computer name as OS server in the WinCC project for the OS project.
● If you want to use another computer to remotely activate the OS project, this computer must
be entered as client computer.
Because the computer name for server and client cannot be identical in a WinCC project, you
must note the following procedure:
1. Change the ES computer name entered under "Server" in the computer list to a fictitious
name in WinCC Explorer.
2. Close the project.
3. Open the project.
4. Add a new client in the computer list in the WinCC Explorer.
5. Enter the ES computer name under "Client" in the computer list.
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6. Load the target system using SIMATIC Manager.
7. You can now remotely activate Runtime on the OS computer from the Engineering Station.
See also
How to Deactivate a Project (Page 71)
How to Edit Server Project Pictures (Page 68)
How to Open a Project for Editing (Page 67)
Access to Projects from Several Clients (Page 65)
How to Access Computers Outside a Subnet (Page 63)
Remote Configuration (Page 62)
Client/Server Systems in WinCC (Page 8)
1.8.7
How to Deactivate a Project
Principle
A client/server system not only provides the option of remote project configuration but also to
activate and deactivate them remotely.
If you deactivate a server project from a client by using the "Simatic Shell" dialog, only the
server project is deactivated. However, if you have opened a server project for processing and
deactivate it in WinCC by using the "Stop Runtime" button in the toolbar, only the client project
is deactivated even if the server project is open.
Requirements
In order to open a server project on a client for remote deactivation, the following conditions
must be fulfilled:
● The user registered on the client has the operator authorization for "Activate remote" in the
server WinCC project.
● The client has been entered in the server's computer list.
● The project has been enabled for network access
Procedure
1. In Windows-Explorer of the client, select the "Simatic Shell" entry. The "Simatic Shell"
window is displayed.
In the "Simatic Shell" dialog you can view the enabled servers and projects of your client/
server system available through the network.
2. Select the project to be activated.
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3. Select the "Deactivate remote" command from the pop-up menu. A Login dialog appears.
4. Enter the user name and password for the current computer. The project is deactivated on
the server.
Note
Passwords are case-sensitive.
See also
How to Activate a Project (Page 69)
How to Edit Server Project Pictures (Page 68)
How to Open a Project for Editing (Page 67)
Access to Projects from Several Clients (Page 65)
How to Access Computers Outside a Subnet (Page 63)
Remote Configuration (Page 62)
Client/Server Systems in WinCC (Page 8)
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1.9 Use of the OPC Interface in Client/Server Systems
1.9
Use of the OPC Interface in Client/Server Systems
General procedure
OPC (OLE for Process Control) is a worldwide communication standard for components in the
automation industrial sector. Developed from Windows-based technology, the OPC provides
an open interface which enables problem-free, standardized data exchange between PLCs,
operating and monitoring systems and office applications from different manufacturers.
Note
Leading companies involved in the automation industry cooperate within the "OPC
Foundation".
Further information on the OPC Foundation is available in Internet under the following
address: "http://www.opcfoundation.org"
Using OPC in WinCC
Used within a distributed system, each WinCC server can monitor the entire system. A WinCC
server, however, only assumes a specific range of tasks, for example, such as message editing
or archiving.
The WinCC OPC servers enable OPC access to the WinCC Runtime data via the software
interface. The WinCC OPC servers support the full functional scope complying with the
corresponding OPC specifications.
As OPC client, any software can be implemented which is based on the respective OPC
specification. In this way, the OPC client can be used, for example, to analyze various sources.
Proprietary OPC clients may be created to best meet specific requirements.
In order to operate the WinCC OPC server mode, the Connectivity Pack license must be
installed on the computer which is to be used as the WinCC OPC server. No Connectivity Pack
License is required for the OPC DA sever.
The OPC interface is installed on the client and server with the WinCC installation.
The OPC servers from WinCC support the following specifications:
● OPC Data Access 2.05a und 3.00
● OPC XML Data Access 1.00
● OPC Historical Data Access 1.20
● OPC Alarm & Events 1.10
Detailed information to the use of the OPC interface in WinCC is available in the WinCC
Information System under the topic "Communication" > "OPC"
See also
Client/Server Systems in WinCC (Page 8)
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Long-term archive server
2.1
2
Setting Up of the Long-term Archive Server
Introduction
Archive swap-out files can be saved on the long-term archive server. These archives can be
process value or message archives. The swapped-out archive data of process archives is
saved in compressed form as binary data.
Requirement
A computer which is to be used as a long-term archive server must fulfill the following
requirements:
● Operating System:
– Windows Server 2003 SP2
– Windows Server 2003 R2 SP2
– Windows Server 2008 SP2
– Windows Server 2008 R2 SP1
● Access with administrator rights
● Microsoft SQL Server 2008 R2 SP1 is installed.
● Microsoft Message Queuing utilities installed
● The computer must be available in the network (LAN).
● WinCC V7 must not be installed, as WinCC Fileserver V7 is installed.
Installation
In order to set up a computer as a long-term archive server, execute the setup for the WinCC
file server on this computer. The file server setup file is to be found on the WinCC installation
DVD in the "Programs" dialog in the "WinCC" group.
Configuration
The configuration of the long-term archive server consists of two steps:
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2.1 Setting Up of the Long-term Archive Server
Step 1: Release of drives and folders
To save the swap-out files on the long-term archive server, the required drives and/or folders
must be released on the long-term archive server.
Note
You must have administrator rights to share folders or drives.
Step 2: Specification of the path for the swap-out archive files
Enter the paths for the swap-out files on the configuration computer.
For instructions for the configuration of process value archives, see "Swapping Out Archives
on the Hard Disk". For instructions in connection with message archives, see "Configuring
Archive Backup".
Note
If you wish to swap out archive files for backup purposes, you have the option to save these
on any available drive. If you wish to access the archive data with OLE DB, you must specify
a drive on the long-term server.
Accessing Swap Files
Swap files can be accessed in three different ways:
● Copy swap files onto the configuration computer on which Runtime is run. Link the swap
files to the project in the Alarm Logging or Tag Logging. The archived values are displayed
in Runtime.
● Access via OLE-DB
● Access via DataMonitor Web Edition
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File Server
3.1
Setting Up the File Server
Introduction
The WinCC file server is a server with minimum configuration of WinCC components.
You can save projects on the file server and manage them centrally. For example, this
facilitates the creation of periodic backup copies of all projects.
Note
You use the file server exclusively for configuring.
Requirement
Before installing a WinCC Fileserver V7, please observe the conditions described in the
Installation Notes. In addition, the computer must be available on the network (LAN).
Note
WinCC V7 and WinCC Fileserver V7 cannot be installed at the same time on one computer.
Installation
In order to set up a computer as a file server, you run the Fileserver Setup on the computer.
In the "Programs" dialog on the WinCC Installation DVD, select the "WinCC V7.2 Fileserver"
entry from the "WinCC" group.
The minimum installation for WinCC is installed on the computer.
Configuration
The projects are stored on the file server. To enable all project members to access the projects,
you must share the corresponding drives or folders on the file server.
Note
You must have administrator rights to share folders or drives.
Assign the shared folders or drives with unique drive letters on the configuration computers.
Project members can then open the projects on the file server like a local project.
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WinCC ServiceMode
4.1
4
WinCC ServiceMode
Contents
WinCC ServiceMode provides the option of operating WinCC Runtime as a service. WinCC
Runtime can also be active as a service when no interactive user is logged into the computer.
This chapter shows you:
● In which configurations the WinCC ServiceMode can be used.
● How to configure a project as a service project.
● How a service project is activated.
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4.2 Standard Project and Service Project
4.2
Standard Project and Service Project
Overview
Your can configure a WinCC project as a standard project or as a service project. To operate
a WinCC project in WinCC ServiceMode, you must configure it as a service project.
Standard project
In order to run WinCC Runtime, a user must be logged into the computer. Interactive user
inputs are possible.
Service Project
WinCC Runtime can also be run on the computer when no interactive user is logged into the
computer.
WinCC Runtime can also be operated with a logged-in user; interactive user inputs are then
possible.
Note
WinCC is not executable when the system is being accessed
Changes to the processes and services of WinCC in the Control Panel and in the Windows
Task Manager are not allowed. The following changes are affected:
● Changes to the properties
● Manual accesses:
– Start
– Exit
– Stop
– Resume
– Restart
● Priority change
There are dependencies between the individual processes and services.
Do not make any changes.
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4.3 Configurations for a service project
4.3
Configurations for a service project
Overview
WinCC Runtime can run as a service project on the server in the following configurations:
● WinCC server with Windows Server 2003 and Windows Server 2003 R2
– Clients with Windows XP
● WinCC server with Windows Server 2008 and Windows Server 2008 R2
– Clients with Windows 7
● WinCC WebNavigator server or dedicated Web server
– WinCC Web clients
● DataMonitor server or dedicated DataMonitor server
– DataMonitor clients
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4.4 Using a service project and restrictions
4.4
Using a service project and restrictions
Use
On the server, the project in WinCC service mode is operated as a service project. WinCC
Runtime starts as a service. A service project is started automatically or manually.
Operation without logged on user
A service project can run without an interactive user being logged on to the computer. If no
interactive user is logged on, no interactive operation is possible.
Operation with logged on user
Interactive operation is not generally desired in service projects.
An interactive user can log on e.g. for service purposes. In this case, the user can activate the
interactive operation of the service project.
Automatic start
With automatic start, WinCC Runtime is automatically start when the server is turned on and
the set project is activated. The automatic start can be performed without an interactive user
being logged on.
Manual start
With a manual start, the user must log on to the server and then activate the project. When
the user logs off the server, WinCC Runtime continues to be active.
User logon and logoff
While the service project is active, interactive users can log on and off the server at any time.
Limitations
A service project is subject to the following restrictions:
Scripts
Since an interactive user is not normally logged on to service projects, C scripts and VB scripts
e.g. lead to problems in the following cases:
● If you require interactions, e.g. inputs.
● If you display message boxes.
There is no common data area for C scripting in the service mode. Thus, for example, no global
C variables can be exchanged between "Global Script" and the "Graphics Designer".
Additional programs or tasks
With a service project, you cannot add additional programs and tasks to the startup list.
Non-released components
OPC access via Connectivity Station is not released for a service project.
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4.4 Using a service project and restrictions
Diagnostics information for a service project
As a general rule, a user is not logged on to a server with an activated service project. WinCC
cannot show diagnostics information on the server. WinCC thus forwards diagnostics
information to the clients. You can find additional information on this in the WinCC Information
System under the topic "Working with WinCC" > Working with projects > Appendix > WinCC
diagnostics window and license information".
Note
Editing or migrating service projects
in order to edit or migrate a service project, you need to administer the ServiceMode user
accordingly on the computer. If the ServiceMode user is not available, the logged on Windows
user must have been administered accordingly for editing or migrating the project.
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4.5 WinCC status and control in the system tray
4.5
WinCC status and control in the system tray
Introduction
WinCC shows the "SIMATIC WinCC" symbol in the Taskbar Notification Area, the so-called
tray area. This symbol provides information on the project status. The WinCC project can be
activated and deactivated via the symbol's shortcut menu.
Project status
The following table shows which project status goes with which symbol:
SIMATIC WinCC® symbol
Status
● WinCC is not active.
● No project is open.
WinCC changes the status:
● WinCC opens a project.
● WinCC activates a project.
● WinCC deactivates a project.
● WinCC closes a project.
Project is open.
The project is activated.
Control Options via the Pop-up Menu
You can control an open project depending on its status. The shortcut menu of the "SIMATIC
WinCC" symbol provides the following control options:
● Start Graphics Runtime.
● End Graphics Runtime.
● Activate project.
● Deactivate project.
● Open diagnosis window.
SIMATIC WinCC® Window
To open the "SIMATIC WinCC" window, click on the "SIMATIC WinCC" symbol.
Example: Window with Runtime activated
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The window shows the following information:
● Project name
● Project type
● Project status
● Computer List
The local computer is represented in blue.
Computer List
The computer list contains all computers on the network. If the project is activated, the
connection status of all existing computers is shown.
The following table shows the icons of the connection status and their meaning:
Icon
Status
● No connection
● Connection disconnected
● Local computer
● Redundant partner server
Connected
● With standby server
● With master server, but standby server is the preferred server
Connected
● With master server
● With standby server as preferred server
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4.6 Functionality and Prerequisites
4.6
Functionality and Prerequisites
4.6.1
Mode of operation of a service project
Introduction
This chapter describes the mode of operation of a WinCC service project.
Standard project
A standard project is started as follows:
● The user logs on to the system.
● The user starts WinCC Runtime or WinCC Runtime starts automatically.
WinCC Runtime remains active until one of the following cases occurs:
● The user exits WinCC Runtime.
● The user logs off from the system.
In this case the system terminates WinCC Runtime.
Service project
With a service project, WinCC Runtime is started as a service. Depending on the setting, these
services are started at the following times:
● Automatically after the operating system has started.
● After a user has logged on and started WinCC Runtime.
WinCC remains even if the user logs off again.
The WinCC Runtime data is still accessible.
A logged on user can activate runtime operation as required.
The following diagram shows the states between starting the server and automatic Runtime
start with a service project.
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4.6.2
Requirements for running a service project
Requirements
Interactive operation is not generally desired in service projects.
Scripts
Since an interactive user is not normally logged into service projects, C scripts and VB scripts
e.g. lead to problems in the following cases:
● If you require interactions, e.g. inputs.
● If you display message boxes.
Service project in a distributed WinCC scenario
You must set up a dedicated Windows user for a service project. The Windows user configured
for the service project must belong to the "SIMATIC HMI" user group.
You can use a local Windows user or a Windows domain user. Observe the following points
relating to a WinCC multi-user system and to distributed systems with server-server
communication:
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4.6 Functionality and Prerequisites
● Local Windows user
The user must be a member of the local "SIMATIC HMI" user group on all the computers
in the network. The password for this user must be identical on all computers.
● Windows domain user
The user must meet one of the following conditions:
– The user is a member of the local "SIMATIC HMI" user group on all computers.
– The user is a member of a group which is in turn a member of the local "SIMATIC HMI"
user group.
Note
The precondition for uninterrupted runtime of a WinCC service project is that the
password of the configured user is not changeable and cannot expire.
To ensure this, activate the following options when setting up the user:
● "User cannot change password"
● "Password never expires"
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4.7 Configuring WinCC ServiceMode
4.7
Configuring WinCC ServiceMode
4.7.1
How to define a project as a service project
Introduction
Specify in the project properties whether the project is run as a standard project or a service
project.
Procedure - defining a service project
1. Click the project name in the navigation window of the WinCC Explorer and select the
Properties command in the shortcut menu.
The "Project Properties" dialog opens.
2. Switch to the "Operating mode" tab.
3. Enable the "Service" option.
WinCC shows a message that the project needs to be reloaded in order to convert the
project.
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4.7 Configuring WinCC ServiceMode
4. Enter the user in the "User" field, under which the WinCC service project will run.
For more information on the required properties of this user, refer to the section headed
"Requirements for running a service project (Page 87) ".
5. Enter the associated password in the "Password" field.
6. Confirm the password in the "Password" field.
7. Confirm your entries by clicking "OK".
8. Reload the project.
Setting up Autostart
WinCC can activate the desired project when the computer starts. Enter the project in the
"AutoStart Configuration" tool.
Procedure - setting up autostart
1. Open the Windows start menu and select "SIMATIC > WinCC" and then the "Autostart"
command.
The "AutoStart Configuration" dialog opens.
button in the "Project" field.
2. Select the desired project by clicking the
The project file and its full path are entered in the box.
3. If you want the project to be opened in Runtime, select the "Activate project at startup"
option.
4. Click the "Activate Autostart" button.
The next time you boot the computer, WinCC starts automatically and the selected project
is opened.
Converting a service project to a standard project
If you want to convert a service project to a standard project, check the "Standard" option on
the "Operating mode" tab.
Converting a standard project to a service project
If you want to convert a standard project to a service project, check the "Service" option on
the "Operating mode" tab.
Note
Converting a standard project to a service project not generally possible
A service project is subject to the restrictions. Note these before you perform a conversion.
You can find additional information under "Using a service project and restrictions (Page 82)".
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Note
After converting the service project to a standard project and vice-versa, you must reconfigure
Autostart.
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4.8 Service Project in Runtime
4.8
Service Project in Runtime
4.8.1
Service project in Runtime
Introduction
WinCC creates the "SIMATIC WinCC"
icon in the Taskbar Notification Area, the so-called
System Tray. Execute the following functions via the shortcut menu of this icon:
● Start Graphics Runtime
● Exit Graphics Runtime
● Activate a project
● Deactivate a project
● Open diagnostics window
Additional information on this is available in the WinCC Information System in the chapter
"Working with WinCC" > "Working with projects" > Annex > WinCC status and control in the
system tray".
4.8.2
How to activate a service project
Requirements
The project must be saved as a service project. You can find additional requirements in the
section "Requirements for running a service project (Page 87) ".
Procedure - automatic start of a service project in service mode
If automatic start was correctly configured for the project with the "Autostart Configuration"
tool, the following is carried out:
● The project is automatically activated as soon as the server is started up.
User input is not required.
Result - automatic start of a project in WinCC service mode
The project is activated. No user is logged on to the server.
Procedure - manual start of a project in WinCC service mode
The following procedure assumes that automatic start is not configured for the project.
1. Start the server.
2. Log on to the server.
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3. Open the project.
4. Select the command "Activate project" in the shortcut menu of the icon
tray. Alternatively, activate the project with the WinCC Explorer.
in the system
Result - manual start of a project in WinCC service mode
The project is activated. WinCC displays the icon
.
To ensure that WinCC Runtime remains active when you log off from the server, only exit the
WinCC Explorer. To do this, select the "Exit WinCC Explorer" entry in the dialog "Exit WinCC
Explorer". WinCC Runtime then remains active.
4.8.3
Show to log into and off of an activated service project
Introduction
You can log into the service and log off again, while a WinCC project is in Runtime, in order
to perform necessary work on the server.
Note
If updates are installed that require a restart, WinCC Runtime is ended.
Requirements
A service project is activated. No user is logged into the server.
Procedure
1. Log into the server.
2. Perform the desired actions.
3. Log back off of the server.
Results
You logged into and off of the server. WinCC Runtime is not affected.
4.8.4
How to activate the interactive operation for service purposes
Introduction
You can activate the interactive operation while a WinCC service project is in Runtime.
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4.8 Service Project in Runtime
Requirements
A service project is active. The interactive operation is not activated.
You log in as a user who is a member of the "SIMATIC HMI" group.
Procedure - Activating the interactive operation
1. Log into the server.
icon in the
2. Select the "Start Graphics Runtime" command from the pop-up menu of the
tray area.
WinCC releases the interactive operation. You can operate the WinCC project.
Procedure - Ending the interactive operation
1. Select the "End Graphics Runtime" command from the pop-up menu of the
tray area.
WinCC ends Graphics Runtime.
icon in the
2. Log off if necessary.
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5.1
5
Redundancy
Contents
WinCC Redundancy is used to configure a redundant system. The availability of WinCC and
the system as a whole are enhanced by parallel operation of two interconnected servers and
automatic switching of the servers in the event of a malfunction.
This chapter shows you the following:
● How to create a redundant system in WinCC.
● How to configure the server for redundancy.
● How to configure the synchronization of the redundant archive.
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5.2 WinCC Redundancy
5.2
WinCC Redundancy
Introduction
WinCC Redundancy provides a considerable increase in the availability of WinCC and the
system as a whole by operating two server systems at the same time linked together.
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The servers monitor each other in Runtime to allow for an early detection of a failing partner
server.
If one server fails, the clients will automatically be switched from the failed server to the still
active server. This ensures that all clients will always be available for monitoring and operating
the process.
During the failure, the active server will continue to archive all messages and process data of
the WinCC project. After the failed server comes back online, the contents of all message,
process value and user archives will automatically be copied to the returned server. This will
fill the archive data gaps of the failed server. The synchronization of the data gaps is also called
synchronization after return.
The WinCC Redundancy Option offers the following:
● Automatic synchronization of message, process value and user archives after the return
of a failed server.
● Automatic synchronization of message, process value and user archives after a process
connection error.
● Online synchronization of internal messages.
● Online synchronization of internal tags (tag synchronization).
● Online synchronization of user archives.
● Automatic switching of clients between the redundant servers if one of the servers fails.
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● The "Project Duplicator" for copying a project to the redundant server.
● Automatic switching of clients if the process connection fails.
● The "Application Health Check" function to monitor the WinCC applications.
● The "SelfDiagnosis" function monitors the hardware and software state of the local
system.
The "Application Health Check" function
In the WinCC / PCS7 environment the expression "Application Health Check" refers to the
cyclic lifebeat monitoring of important applications. The function increases the sensitivity of
the redundancy, since the lifebeat monitoring is extended via the servers themselves to the
individual applications. The "Application Health Check" function automatically monitors all
important WinCC applications.
The lifebeat monitoring performs the following after detecting a software error:
● Set the server status in the "@RedundantServerState" system tag to "Fault".
● Authorize the connected clients to switch to the redundant server.
A process control message warns the user about the software error.
A process control message cannot be generated by the alarm server which caused the failure.
Note
If a software error was detected by the "Application Health Check" function and client
switching was initiated, the relevant server must then be restarted. Only then can the clients
be reconnected to the server. An archive is synchronized retroactively up to the time when
a software error of the server was detected.
"SelfDiagnosis" function
The "SelfDiagnosis" function comprises the following tasks to ensure availability and stability
of the redundant system:
● Monitoring and reporting local HW and SW problems
● Monitoring local system performance
● Monitoring the state of the data volume
● Server fail-over, if necessary
The following tasks are performed in case of malfunction:
● Restart of applications
● If necessary, the server state is set to "Fault" and the servers change over.
● A log entry is generated.
● A system alarm is output.
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5.3 Structure of WinCC System
5.3
Structure of WinCC System
5.3.1
Configuring the WinCC System without Redundancy
Introduction
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The above sketch shows the typical structure of the WinCC Control level with the Corporate
level above and the Process level below.
As the above image shows, the tasks of the control level are distributed among multiple PCs.
The tasks are distributed following to a client server structure.
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Tasks performed by the servers:
● Servers acquire process images and messages from the automation systems.
● To acquire data, the servers are connected to the automation systems via industrial
networks.
● The servers provide the process data to the clients and control the processing states.
Tasks performed by the clients:
● The client stations operate and monitor the entire plant.
● Clients retrieve the currently needed states from the corresponding server via PC networks.
● In general, all clients are equal and have the same rights.
5.3.2
Configuring with WinCC System with Redundancy
Introduction
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5.3 Structure of WinCC System
WinCC project
A WinCC project consists of a group of automation systems, a server computer and one or
more client computers. The project also includes all data such as programs, configuration data
and miscellaneous settings.
Redundant WinCC project
A project is structured for redundancy when a second functionally identical server is made to
run in parallel. The two servers are connected to each other, the ASs and the clients. You can
find additional information under " Configuring an Identical Function (Page 107)".
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5.4
How Redundancy Works
Introduction
The following picture shows the archiving and the archive synchronization of parallel-redundant
servers.
WinCC archiving in normal operation
Normally the servers run completely at the same time in Runtime. Each server computer has
its own process driver connection and has its own data archives. The process data and
messages are sent by the AS to both redundant servers and are processed by both redundant
servers accordingly.
The servers monitor each other in Runtime to allow for an early detection of a failing partner
server and to output a process control message.
User archives, internal messages and internal tags can be continuously synchronized online
(online synchronization).
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5.4 How Redundancy Works
Both servers have equal rights and work independently of each other. Both are available to
the user. If one of the servers fails, an equal redundant server will always be available.
The redundant servers communicate via the network connection to synchronize the archives.
The network is a PC-LAN network with TCP/IP protocol.
An additional connection via a network adapter or a serial connection between the servers is
used to monitor status. The additional connection between the servers is not used for the
archive synchronization.
Failure of a server
Server failure refers to the physical failure of a server, e.g. by a power cut or by turning off the
server without turning it off properly.
If a server fails, the server which is still operating receives and archives the process values
and messages from the AS. This guarantees data integrity with no gaps.
The clients will automatically be switched from the failed server to the redundant partner server.
After a brief switching period, all operator stations will be available again.
An additional connection via a network adapter or a serial connection between the servers is
used to monitor status.
Factors triggering the client switch
The switch of the clients from the default (master) server to the partner server during a server
failure is performed automatically by the system. The following factors cause a switch of
servers:
● Network connection to server failed
● Server failure
● Malfunction of process connection
● The "Application Health Check" function has detected a defective WinCC application and
triggers a switchover.
● The project is deactivated.
Factors triggering archive synchronization after the server returns
The synchronization of the archives between the servers will be initiated after the following
errors have been corrected:
● Process connection error.
You can switch off the process connection monitoring. You can find additional information
under "Configuration (Page 111)".
● Network connection failure to the partner server.
● Server failure.
● Project is not activated.
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Synchronization after the server returns
After the failed server comes back online, the redundancy performs an archive synchronization
for the down time. The gap in the archives caused by the failure is closed by transferring the
missing data to the filed server. This action equalizes and makes both servers available again.
A synchronization of the message archive, process value archive, user archive and internal
tags is performed. The failed server receives its data after a slight time delay (caused by the
failure).
The archive synchronization is implemented as a background function and runs parallel to the
process management and archiving of WinCC. Therefore the operation and observation of the
system is guaranteed at all times.
Comparing internal tags
The internal tags must have the property "Tag synchronization".
Internal tags are compared on partner computers as soon as one of the tags is modified on
one of the redundant servers.
The internal tags also include the system tags that start with the "@" character, e.g.
@Current_User or @RM_Master. You may not configure an online synchronization for system
tags.
Synchronization after process connection error
If the synchronization was configured, the following is performed after a network failure
between a server and one or more ASes:
The output is automatically reset following elimination of the error.
Online synchronization
A direct server-to-server synchronization (online synchronization) takes place during alarm
logging for internal messages, in user archives and with internal tags with tag synchronization.
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5.5 Configuring the Redundancy Server
5.5
Configuring the Redundancy Server
5.5.1
Guide to Setting Up a Redundant System
Introduction
The following section is a brief guide to setting up a redundant WinCC system consisting of
Server 1 and Partner Server 2. You can find general information on the structure of a client/
server system in the WinCC Information System section entitled "Distributed Systems".
Setting up servers and clients on the network
Install the network on each computer and give each computer a unique name by which it can
easily be identified on the network.
Setting up users
After installing the network, user accounts must be set up on each computer.
You can find additional information under "Registering the Servers in Windows (Page 109)".
Installation of license
The redundancy license must be installed. You perform the installation by calling the
application "Automation License Manager" from the Windows start menu under "SIMATIC" >
"License Management". Install the license on each server.
Configuring the project on the server
The following is determined during the configuration of the WinCC redundancy:
● The standard master.
● The partner server.
● The switchover behavior of the clients.
● The type of archive synchronization is determined.
Before duplicating the project, the server package is created (Editor "Server data"). Create a
server package preferably on the standard server.
You can find additional information on configuring the server for redundancy under
" Configuration (Page 111) ".
Note
Only configure the user archives for the synchronization that you really need. The greater the
number of user archives to be synchronized, the longer the synchronization process will take
and the greater the system loads will be.
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Duplicating the project
So that you don't have to configure the partner server a second time, use the "Project
Duplicator". The "Project Duplicator" provides the option of copying the project from one server
to the other.
You can find additional information under "WinCC Project Duplicator (Page 118)".
Note
Before duplicating, make sure there is sufficient memory on the computer on which the project
should be duplicated. If you are duplicating to an existing project, it must not be open.
Configuring the clients
In order to use redundancy, you must configure the clients in accordance with the following
steps.
● Load the package for the server (Default Master) in the "Server data" editor.
● Set the preferred server and activate the automatic package update in the "Server data"
editor.
Activating the redundancy servers
Activate WinCC Redundancy as follows:
Activate initially the configured Master server. Next, start its existing clients. Once they are
active, activate the second server and its existing clients.
The first synchronization will now run. The downtime for this synchronization encompasses
the interval between activating the first and second server.
Note
Please note during startup of redundant servers that the first server must be started
completely prior to activating the redundant partner. During initial startup of servers, no clients
must be active.
Once you have completely deactivated a redundant server pair, you must adhere to a specific
sequence during reactivation. Activate the server first which was the last server to be
deactivated. Once this server has been completed started, you can activate the redundant
partner.
Deactivating a redundant server
Please note that prior to deactivating a redundant server, the second server must be functional
and operating without errors (e.g. no pending process link errors). The archive synchronization
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5.5 Configuring the Redundancy Server
must be completed prior to deactivation. You will see this on a corresponding process control
message.
Note
Data losses may occur if you deactivate the second server before the archive synchronization
of the first server was completed. Please note this item specifically during frequent switching
between activation / deactivation during startup.
5.5.2
Requirements for redundant systems
Introduction
The following prerequisites must be fulfilled for WinCC Redundancy:
● For redundant WinCC servers with multi-user operation, you can only use computers with
the following server operating systems:
– Microsoft Windows Server 2003 32-bit
– Microsoft Windows Server 2003 R2 32-bit
– Microsoft Windows Server 2008 32-bit
– Microsoft Windows Server 2008 R2 64-bit
Windows XP or Windows 7 must be installed on the client PCs.
● Redundancy requires servers to be time-synchronized. The time synchronization of the
entire system (WinCC computer, automation systems, etc.) is recommended. The time
synchronization can be performed with the "Time synchronization" option in WinCC.
● Messages and acknowledgments from the ASs and clients must always contain a time
stamp (in the message) to avoid double entries (chronological reporting). A way to achieve
this is by using alarm blocks from the ASs.
● Process values, messages and active message blocks from the underlayered automation
systems, are sent to both servers in parallel.
● The redundancy option must be installed on both servers.
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● The redundancy servers must be configured functionally identical.
● One of the following connections must exist between the redundant servers:
– Additional network connection via a LAN card or via FireWire connection
– Serial cable
This additional connection ensures exact definition of the "Master" or "Standby" status.
You configure the additional LAN connection via FireWire or network card in the
Redundance Editor. Use the TCP/IP protocol with the corresponding IP address. The IP
address must not be in the same subnet as the terminal bus.
Note
To safely exit WinCC in the event of a power failure, the use of an uninterruptible power
supply - UPS - is recommended.
Comparing blocked messages
When a failed server is restored, currently blocked messages are searched and compared via
general AS query in Alarm Logging.
If a message is blocked passively, i.e. only on one server, then the blocking information is
compared.
5.5.3
Configuring an Identical Function
Archives for process data and messages
Tag Logging and Alarm Logging must be configured in a functionally identical way for the
redundant servers. Functionally identical means:
● Identical archives, where additions can be made in the form of additional measurement
points or archives. These additions will not be synchronized and must therefore be updated
manually on the partner server.
The following archives are synchronized by WinCC:
● Archives based on hard disks.
– Process value archives
– Compressed archives
– Alarm Message Archives
● The synchronization of main memory archives is not performed.
User archives
The user archives require the same structure on both servers:
The configuration of user archives that are going to be synchronized must be identical in terms
of their properties and field/record structure.
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Note
Synchronization of Changed Configuration Data Not Possible via Load Online Changes
Changes to user archive configuration data, such as deleted fields in the archive, cannot be
transferred with an online download of changes to a redundant server pair.
User Management
Changes in the user management are not synchronized automatically. If you want to make
changes to the user management, you have the following options:
● Make the changes on the engineering station. Transfer the changes to the redundant
servers.
● Make the changes identically on both redundant servers.
See also
Online Synchronized Messages (Page 109)
Redundant User Archives (Page 108)
Requirements for redundant systems (Page 106)
WinCC Redundancy (Page 96)
5.5.4
Redundant User Archives
Introduction
User archives can be edited by operations, standalone programs, ASs or other functions.
Requirement
The configuration of the archives must be identical on both computers. Therefore you must
use the Project Duplicator for this.
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Editing User Archives in Parallel
Note the following when adding records to redundant user archives in parallel:
● Even before the synchronization of a returned server is complete, records can be added
to the server being synchronized. Otherwise, you will get an error message in he script or
the user archive control.
● Even during the online synchronization, some time will pass before the record has been
synchronized in the redundant archive.
Note
If both server systems fail, the server system that was used last must be restarted first.
Otherwise, changes that have not been saved could be lost.
5.5.5
Online Synchronized Messages
Introduction
All internal message tags and messages without tag links are synchronized online. This
includes system operating messages of Alarm Logging and the messages from "BATCH".
See also
Configuring an Identical Function (Page 107)
WinCC Redundancy (Page 96)
5.5.6
Registering the Servers in Windows
Introduction
Both the redundant servers must recognize each other on the network. In addition, users/
passwords must be identical on the redundant servers.
To enter the user, proceed as follows:
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● Under Windows Server 2008 / Windows Server 2008 R2 / Windows 7:
Access is through the Windows start menu using "Start > Settings > Control Panel". Set up
users at least as users (User) in the "User Accounts" dialog.
● Under Windows Server 2003:
Open the Windows start menu "Start > Settings > Control Panel" and the click on the "Stored
User Names and Passwords" icon. Set up users at least as users (User) in the "Users and
Passwords" dialog.
● Under Windows XP:
Access is through the Windows start menu using "Start > Settings > Control Panel" and the
"User Accounts" symbol. Set up users at least as users (User) in the "Users and Passwords"
dialog.
The example shows the dialog under Windows XP.
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Note
The user must have the following properties:
● You must have administrator or user rights.
● Be a member of the "SIMATIC HMI" user group.
The redundant servers must be equipped with:
● Windows 2003 Server, Windows Server 2003 R2,
● Windows 2008 Server, Windows Server 2008 R2
The client PCs must be equipped with:
● Windows 2003 Server, Windows Server 2003 R2,
● Windows 2008 Server, Windows Server 2008 R2,
● Windows 7, Windows XP Professional
Also, please note the information in installation notes in chapter "Setting Access Authorization
in Operating System".
5.5.7
Configuration
5.5.7.1
Configuring Redundancy
Introduction
The following is determined during the configuration of the WinCC redundancy:
● The standard master
● The partner server
● The switchover behavior of the clients
● The type of archive synchronization
Note
Only configure the user archives for the synchronization that you really need. The greater
the number of user archives to be synchronized, the longer the synchronization process
will take and the greater the system loads will be.
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Procedure
Click "Redundancy" in the WinCC Explorer to call up the redundancy system. Click "Open" in
the appearing popup menu.
See also
Failure scenarios (Page 125)
Example of changing client in the case of a process coupling error (Page 122)
"User Archive" tab (Page 116)
"General" Tab (Page 113)
Guide to Setting Up a Redundant System (Page 104)
WinCC Redundancy (Page 96)
WinCC Project Duplicator (Page 118)
Registering the Servers in Windows (Page 109)
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5.5.7.2
"General" Tab
Introduction
On the "General" tab, you configure general settings for the redundant system.
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Server
The "Server" field contains the name of the computer on which redundancy is configured.
Default master
Specifies which of the redundancy servers will be activated by default as master or standby
during simultaneous startup of both servers.
The redundancy computer on which the "@RM_MASTER" tag is set to "1" will operate in
master mode. The "@RM_MASTER" and "@RM_MASTER_NAME" redundancy tags are
available in the "Internal tags" area of the "Redundancy" tag group in Tag Management.
The computer name of the corresponding redundancy master is written to the tag
"@RM_MASTER_NAME".
If the status of the "@RM_MASTER" tag changes, e.g., due to a computer failure, the clients
will switch to the former "standby" computer. The previous "Standby" computer is now the
master.
Note: Make sure that only one of the two redundancy servers is designated the "Default
Master" and not both options! Otherwise problems may arise during the redundancy
switchover of clients.
Redundant partner server
Enter the computer name of the partner server or click "Search".
Connection to the redundant
partner via network adapter
Determines whether there is a connection to redundant partner via a network adapter. The
connection via network adapter should be given preference over the serial connection.
The network adapter can be a hardware such as a NIC or a Firewire port. A TCP/IP connection
is used as logical connection. The IP address is not permitted to be located in the same subnet
as the terminal bus.
The status of the redundancy is controlled by this connection. The connection serves to safely
query the status of the redundant partner server. The connection leads to an improvement in
the communication between the redundant partner servers. This increases the availability of
the redundancy.
Connection to redundant
partner via serial interface
Determines whether there is a connection to redundant partner via serial interface. The
connection via network adapter should be given preference over the serial connection.
The redundancy status is controlled using this connection. The connection serves to safely
query the status of the redundant partner server. The connection leads to an improvement in
the communication between the redundant partner servers. This increases the availability of
the redundancy.
Synchronize all data of the
down time
Specifies synchronization of all data for the entire down time.
Only synchronize the last ...
days
Specifies synchronization only for the last two days.
Synchronization of tag
logging after the partner
server comes back online
Specifies whether or not a synchronization is to be carried out for tag logging after recovery.
Synchronization of alarm
logging after the partner
server comes back online
Specifies whether or not a synchronization is to be carried out for alarm logging after recovery.
Online synchronization of
alarm logging
Specifies whether or not to synchronize the operator messages and messages. Only
messages with internal message tags and messages without tag connection shall be
synchronized.
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Synchronization after
process connection error
Specifies whether or not to synchronize the archives between the servers and their configured
connections (AS) after recovery of the network connection.
If process connection monitoring has been activated, the respective server carries out lifebeat
monitoring on all configured connections. A server establishes that the process connection to
an AS is disturbed when the AS concerned fails to send an acknowledgment back to the server.
If a network error to one or several AS was detected this way, all message, process data and
user archives of all AS in the project are synchronized. The archives of ASs that have not
failed will also be synchronized. If this option is deactivated, the runtime loads on the servers
are prevented.
Since an error occurring in the network of the AS cannot be recognized if the monitoring of
network connections is turned off, no archive synchronization will take place.
WinCC client
switchover
in the event of error
in process connection
Specifies in the case of a network error between a server and its configured connections (AS)
whether or not a client connected with this server is to be switched to the redundant partner
server.
If this option is activated, the number of defective logical connections to the "Master" server
and the redundant partner server is cyclically determined. If the "Master" server has more
defective logical connections than the redundant partner server, a client logged on to the
"Master" server will be switched over to the redundant partner server.
Once the error in the process link has been eliminated, a client is switched back to the preferred
server to which it was originally connected.
Monitoring of the process link will not be started until both redundant servers are in runtime.
Activate redundancy
Indicates the active state of the redundancy system. You may activate or deactivate
redundancy with a mouse click while configuring the redundancy system.
Note
Deterioration in the runtime behavior
During commissioning, WinCC Runtime is often activated and deactivated on the server PCs.
Frequent starting when redundancy is active leads each time to archives being synchronized
which can possibly lead to noticeable deterioration in the WinCC runtime behavior. To avoid
this, you are recommended to deactivate redundancy during commissioning.
Note
Restaring runtime when options are changed
In Runtime only changes to the synchronization of the archives take immediate effect, so
without restarting Runtime. This concerns the following options on the "General" tab:
● "Synchronization ... after the partner server comes back online".
● "Online synchronization for alarm logging".
● "Synchronization after process connection error...".
Changes to the other options take effect after restarting Runtime.
Note
In the event of a software error on the server it is possible for connected clients not to be
switched over to the redundant partner but for the system to be blocked.
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5.5.7.3
"User Archive" tab
Introduction
Configure the automatic user archive synchronization for the redundancy system in the "User
archive" tab.
"User Archive" Tab
User Archive
In the "User Archive" column, all configured user archives are displayed by row.
Synchronizat In the "Synchronization" column, the synchronization of the individual user archives can
ion
be activated or deactivated. Double-clicking this field switches its current status. This
setting must be identical on both partner servers.
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"User Archive" Tab
Synchronizat The two buttons at "Synchronization of all User Archives" field allow you to activate or
ion of all
deactivate the synchronization of all displayed user archives.
User
Archives
Update
The "Update" button applies the current configuration, if the configuration has been
changed in the user archives editor after calling the Redundancy Editor.
Note
Synchronization of Changed Configuration Data Not Possible via Load Online Changes
Changes to user archive configuration data, such as deleted fields in the archive, cannot be
transferred with an online download of changes to a redundant server pair.
Note
Restaring Runtime when Options are Changed
In Runtime only changes to the synchronization of the archives take immediate effect, so
without restarting Runtime. This concerns the following options on the "General" tab:
● "Synchronization ... after the partner server comes back online".
● "Online synchronization for Alarm Logging".
● "Synchronization after process connection error...".
Changes to the other options take effect after restarting Runtime.
See also
Failure scenarios (Page 125)
WinCC Redundancy system messages (Page 133)
"General" Tab (Page 113)
Configuring Redundancy (Page 111)
Guide to Setting Up a Redundant System (Page 104)
WinCC Redundancy (Page 96)
WinCC Project Duplicator (Page 118)
Registering the Servers in Windows (Page 109)
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5.5.8
WinCC Project Duplicator
5.5.8.1
WinCC Project Duplicator
Overview
Projects with the same functions must be set up on both redundant servers. After ending the
configuration, use WinCC Project Duplicator to create the redundant partner project. The
WinCC Project Duplicator automatically copies all data belonging to the project to the
redundant partner.
The Project Duplicator performs the following:
● Copy all associated project data (pictures, scripts, archives, etc.).
● Make all necessary settings on the target compute, which is already configured for the use
of redundancy.
Note
Transfer Not Possible with Windows Explorer
You cannot use Windows Explorer to transfer the project to a redundant server.
Note
The WinCC Redundancy system always consists of 2 servers. Thus, you cannot configure
any other PCs as redundant PCs for the two redundant server PCs.
You must change computer-specific settings manually afterward.
Further Configurations
Further configurations only need to be carried out on one of the servers. The changes can be
transferred to the redundant server with the WinCC Project Duplicator.
5.5.8.2
How to Duplicate a Project for Redundant Servers
Introduction
If you have created a redundant system, you must synchronize the WinCC project on the
redundant servers following any modification.
To transfer the project to a redundant server, you use the WinCC Project Duplicator.
Note
You can save minor changes using the function for downloading changes online in SIMATIC
Manager and then transfer them to the servers in runtime.
You cannot use Windows Explorer to transfer a project to a redundant server.
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Principle
Select the project you want to duplicate in the Project Duplicator.
Specify the computer and folder in which the project will be duplicated. The project folder is
created in this target folder.
You cannot duplicate a project on the local computer. You always duplicate a project on another
computer in the network to which you have access rights. In the description below, this is called
the target computer.
Depending on the status of the project, you can copy the configuration data and the runtime
data into the selected folder:
Project Status
Configuration Data
Runtime Data
Project closed
+
+
Project open and deactivated
+
-
Project in Runtime
+
-
You can only duplicate the entire project and the entire folder structure. You cannot exclude
any data or folders from the duplicate operation.
Duplicating a project with project-based access protection
SIMATIC STEP 7 must be installed in order to transfer a WinCC project with project-based
access protection to a redundant server.
When you click the "Duplicate" button in the "WinCC Project Duplicator" dialog, you have to
enter the password for the STEP 7 project.
If SIMATIC STEP 7 is not installed or you enter the wrong password, the Project Duplicator
aborts with an error message.
Requirements
● The redundancy option is installed on both computers.
● The target folder for the duplication is created on the target computer and is made available
for network access.
● You have access rights for the target folder.
● The target computer has enough free space on the hard disk.
● The correct WinCC version must be installed on the target computer. The computer must
be started.
● Runtime is deactivated on the target computer.
● The project is closed on the target computer.
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Procedure
1. In the Windows start menu, select the "Project Duplicator" entry in the "SIMATIC > WinCC
> Tools" folder. The WinCC Project Duplicator is opened.
2. Enter the project you want to duplicate in the "Select the source project that is to be
duplicated" box. Enter the path and the <PROJECT>.MCP project file directly or search by
clicking the
button.
3. Enter the path where the duplicated project will be stored in the "Store duplicated project
for redundancy partner at" box. Enter the folder path and the <PROJECT>.MCP project file
directly or search by clicking the
button.
4. Click the Duplicate button.
The "Copy" window is opened. During duplication, the Project Duplicator displays the files
and folders with a progress bar. Use the "Cancel" button to stop duplication.
After duplicating the "Notes on the Project Duplicator" window is opened. WinCC indicates
the settings that you still need to check.
5. Close the Project Duplicator with the Close button.
6. Check the settings in the duplicated project and change them if necessary.
7. Check the following:
– The computer name.
– The settings in the Redundancy Editor.
– If necessary, the settings in the editors.
Note
If you duplicate an open WinCC project on the source computer, no progress bar will
be displayed.
5.5.8.3
How to duplicate a redundant project at runtime
Introduction
If you edit a redundant project, you can also update the project on the redundant server during
operation.
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You can save minor changes with the Save Online Changes function and then transfer them
to the servers. You should also refer to the documentation on the topic of "Load Online
Changes".
Duplication using the Project Duplicator
Some configuration cannot be saved by the download online changes function. In this case,
you must generate a duplicate of the project to the redundant server using the Project
Duplicator.
Note
No Redundancy
For changes during normal operation, you must deactivate one of the partner servers. During
this time, no redundancy is available.
Requirements
● The target folder has been created.
● You have access rights for the target folder.
● The redundant server on which the copied project will be stored has enough free hard disk
space.
Procedure
This chapter describes how to use this function in a redundant system with the two servers
Server1 and Server2.
1. Exit Runtime on the redundant Server1 and close the project.
2. Make the configuration changes on Server2 in Runtime and save the changes.
3. Start the Project Duplicator on Server2.
4. Use the "Duplicate" button to duplicate the project on Server1 to the target folder of the
project deactivated under "1." and overwrite it.
5. Open the project on Server1.
6. Check the settings.
7. Start Runtime and wait for the redundancy synchronization.
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5.6 Working with Redundancy
5.6
Working with Redundancy
5.6.1
Example of changing client in the case of a process coupling error
Introduction
A redundant system consists of two functionally identical servers. One server is the "Master"
server and the other is the redundant partner server.
The servers have the following status in the undisturbed operating state:
● The master server has the status "master".
● The redundant partner server has the status "standby".
The clients connect with each other on the configured preferred server.
As soon as both servers are in Runtime, the processes coupling monitoring is activated. WinCC
Redundancy determines cyclically the number of defective logical connections of the "Master"
server and the redundant partner server. If the "Master" server has more defective logical
connections than the redundant partner server, the status of the server becomes invalid
("Fault"). The clients are switched over to the redundant partner server, which now has the
"Master" status.
Note
The "Fault" status is not displayed in the "@RM_MASTER" system tag but in the
"@RedundantServerState" tag.
Normal operating state
The system is made up of the following computers:
● Redundant Server A
● Redundant Server B
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● Client 1 with preferred server A
● Client 2 with preferred server B
Process connection error on server A
There is a process link error on server A. The error is not present on server B. The number of
defective logical connections on server A is greater than on server B. Server A therefore
receives the "Fault" status. As a result, clients 1 and 2 switch over to redundant server B.
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End of the process link error
When the process link error on server A has been cleared, server A then has the status
"Standby". As a result client 1 switches over to server A, since it has indicated this as its
preferred server. Client 2 remains connected to server B because it is listed as the preferred
server.
Note
The OPC couplers are not monitored. Therefore, no client switching in case of an error of the
OPC couplers takes place.
See also
Failure scenarios (Page 125)
"User Archive" tab (Page 116)
"General" Tab (Page 113)
Configuring Redundancy (Page 111)
Guide to Setting Up a Redundant System (Page 104)
WinCC Redundancy (Page 96)
WinCC Project Duplicator (Page 118)
Registering the Servers in Windows (Page 109)
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5.6.2
Failure scenarios
5.6.2.1
Failure scenarios
Introduction
Some commonly occurring failures will be used to illustrate how WinCC Redundancy works.
The following failures will be discussed:
1. Scenario 1: Project on server computer not in Runtime (Page 126)
2. Scenario 2: Connection Fault to Partner Server (Page 128)
3. Scenario 3: Faulty Network Connection to Client (Page 130)
4. Scenario 4: Faulty Process Connection (Page 130)
5. Scenario 5: Software Error (Page 131)
WinCC Redundancy will recognize the current error itself or react to error messages with the
following actions:
● Saving times of events.
● Archive synchronization.
● Changing the "Master" and "Standby" identifiers.
● Switching clients.
● Issuing messages.
Startup of the server PCs
When the server PCs are starting up, the redundancy component establishes whether the
partner server is already active.
● If the partner server is already active, the "Standby" status is set in the server computer.
● If the partner server is not active during startup, the "Master" status is set in the server
computer.
WinCC redundancy system tags
The status of the server computer is saved in the @RM_MASTER system tag.
Status of server computer
@RM_MASTER status system tag
Master
1
Standby
0
The @RM_MASTER_NAME tag contains the name of the server system that possesses the
"Master" status, e.g. "Server1".
The @RedundantServerState tag displays on each redundant server its redundancy status,
e.g. "Standby", "Master". WinCC Redundancy System Tags (Page 135)
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Redundancy only sets the above tags. Both servers are always completely equal.
Scripts or other applications can evaluate these tags. Only the @RM_MASTER tag can be
changed.
Master server becomes the standby server
If neither a client or the redundant partner server is reachable for the master server, the master
server becomes the standby server. This status occurs when the network connection and the
connection between the partner servers is interrupted.
This process is necessary in order to make sure that both redundant servers do not get the
status "Master".
Exchanging status information
The status of the redundancy is controlled via a separate connection. The connection can be
established as follows:
● Using a network adapter
● Using the serial interface
The connection via a network adapter is preferred over the serial connection.
Note
Note that the archive synchronization is performed via the network connection. The archive
synchronization is not executed via the status connection.
5.6.2.2
Scenario 1: Project on server computer not in Runtime
Introduction
This scenario shows the behavior of redundancy, if the project was deactivated on Server2.
The following actions will be triggered:
● Server1 stores the failure time (date and time) of Server2.
● Server1 will report the failure of Server2 through a system message.
● If Server1 is the "Standby server" server, this takes over the role of the "Master" by setting
the @RM_MASTER tag. Correspondingly the @RM_MASTER_NAME and
@RedundantServerState tags are changed.
● The clients connected to Server2 switch over to Server1.
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Server2 comes back online
The downtime means that there is a gap in the archives of Server2. This gap will be filled by
the following measures:
● Server1 stores the return time (date and time) of Server2.
● Server1 reports the return of Server2 through a system message.
● A redundancy synchronization for the following archive from Server1 is executed on
Server2.
– Message archive
– Process data archive
– User archive
● In both servers, the @RM_MASTER tags remain unchanged.
– In Server1, the @RM_MASTER remains set.
– In Server2, the @RM_MASTER is reset.
– The @RM_MASTER_NAME and @RedundantServerState tags remain unchanged.
● Clients, which are configured with Server2 as their preferred server, switch back to Server2.
Compared to the online synchronization, the archive synchronization after a server failure can
take a long time. The duration of the synchronization depends on the number of records to be
synchronized and the computer and network load.
Alternating Failure of the Server
If failures alternate between the two servers (see diagram), they will be synchronized one after
the other. After the synchronization, all data will be available in both archives.
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If the synchronization was configured, a synchronization is always performed.
Failure A
Server1 transfers all values to Server2.
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Failure B
Server2 transfers all values to Server1.
Failure C
Server1 transfers all values to Server2.
All these processes run automatically and in the background, independently of the process
value archiving and message archiving from the subordinate automation systems running in
parallel.
5.6.2.3
Scenario 2: Connection Fault to Partner Server
Introduction
This scenario shows the behavior of redundancy in the case of a connection failure to Server2.
Prior to the occurrence of this event, both servers run in Runtime without failures.
The described connection failure occurs if, for example, the network connection at Server1 is
pulled.
Initial Situation 1
The servers have the following status in the event of the connection failure:
● Server1 the status "Master".
● Server2 the status "Standby".
Connection failure occurs
The following reactions are triggered upon occurrence of the connection failure:
● Server2 becomes the master server and saves the time of the failure (date and time).
● Server2 displays a system message stating that the partner server has failed and Server2
has switched to the "Master" status.
● Tags @RM_MASTER, @RM_MASTER_NAME and @RedundantServerState are reset on
both servers according to the switchover.
Connection is restored
During the connection failure, the messages of Alarm Logging and user archives were not
synchronized.
This situation will be remedied by the following measures:
● Server2, now being the master, saves the time of restoration (date and time).
● Server2 displays by way of a system message the return of the partner server.
● Redundancy synchronization from master server to standby server.
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● Through online synchronization of the Alarm Logging, the following is reported from Server1
to Server2 and display on Server1 as a system message:
– An error has occurred in the redundant operation.
– Server1 switched to "Standby" status.
– Return of Server1.
● In both servers, the @RM_MASTER, @RM_MASTER_NAME and
@RedundantServerState tags remain unchanged.
Initial Situation 2
The servers have the following status in the event of the connection failure:
● Server1 the status "Standby".
● Server2 the status "Master".
Connection failure occurs
The following reactions are triggered when the connection fails:
● Server2 remains the master server and saves the time of failure (date and time).
● Server2 displays by way of a system message the failure of the partner server.
● Server1 remains the standby server.
● The @RM_MASTER, @RM_MASTER_NAME and @RedundantServerState tags remain
unchanged on the two servers.
Connection is restored
During the connection failure, the messages of Alarm Logging and user archives were not
synchronized.
This situation is remedied by the following measures:
● Server2 saves the time of return (date and time).
● Server2 displays by way of a system message the return of the partner server.
● Redundancy synchronization from master server to standby server.
● Through online synchronization of the Alarm Logging, the following is reported from Server1
to Server2 and display on Server1 as a system message:
– An error has occurred in the redundant operation.
– Return of Server1.
● The @RM_MASTER, @RM_MASTER_NAME and @RedundantServerState tags remain
unchanged on the two servers.
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5.6.2.4
Scenario 3: Faulty Network Connection to Client
Introduction
In this scenario, there is a disturbance in the network connection between Server2 and the
"CL5" client belonging to Server2.
The following reaction is triggered:
● Client "CL5" automatically switches over from disturbed Server2 to running Server1.
End of the network disturbance to the client
The following reactions are triggered at the end of the network disturbance:
● The @RM_MASTER, @RM_MASTER_NAME and @RedundantServerState tags remain
unchanged on the two servers.
● The client "CL5" switches back to the preferred server, Server2.
See also
WinCC Redundancy System Tags (Page 135)
Scenario 2: Connection Fault to Partner Server (Page 128)
Scenario 1: Project on server computer not in Runtime (Page 126)
Failure scenarios (Page 125)
Scenario 4: Faulty Process Connection (Page 130)
5.6.2.5
Scenario 4: Faulty Process Connection
Introduction
In this scenario, there is a fault on the process link on Server2 due to an interrupted network
connection to the automation systems.
Failure of a connection to an AS
The failure of a connection to an AS is only recognized as a failure in terms of redundancy
under the following condition:
The connection to the AS is only interrupted to one server.
An interruption in the connection of an AS to both servers is not a failure in terms of redundancy.
An example is the failure of an AS.
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Reaction to an Error
If WinCC recognizes a failure, the following actions will be triggered:
● The disturbance of the process link is reported on Server2.
● Server1 receives a message that partner Server2 has failed.
● Server1 saves the time of error (date and time) on Server2.
● If in the server project "Client change with disturbance in the process link" is configured,
the clients linked to this server are changed to the partner server.
● In Server1, the @RM_MASTER tag is set to status "Master", in Server2 to "Standby".
Correspondingly the @RM_MASTER_NAME and RedundantServerState tags are
adapted. In Server2, @RedundantServerState is set to "Fault".
End of the process link error on Server2
Provided process connection monitoring has been activated, the gap in the archive of Server2
will be filled by the following measures:
● Server1 stores the return time (date and time) of Server2.
● A redundancy synchronization is carried out from Server1 to Server2, since no faults were
found for process connection on Server1.
The data of all ASs will be synchronized. This means that the data of ASs that have not
failed will also be synchronized.
● On Server2, the @RedundantServerState tag is changed from "Fault" to "Standby".
● The correction of the process link error on Server2 is announced by a system message.
5.6.2.6
Scenario 5: Software Error
Introduction
In this scenario, an error occurs on Server2 in software that is being monitored. At this time of
the failure, Server2 has the "Master" status and Server1 the "Standby" status. Several clients
are connected to both servers.
If the "Application Health Check" function detects an error in the WinCC software, the following
actions are initiated:
● Application Health Check reports the error to redundancy. The status of Server2 is set to
"Fault" in the @RedundantServerState tag. The @RM_Master tag is set to "Standby".
● The @RM_MASTER tag in Server1 is set to "Master". Correspondingly the
@RM_MASTER_NAME and RedundantServerState tags are adapted.
● The clients connected to Server2 switch over to Server1.
● A process control message informs users of the software error if the the alarm server itself
has not caused the error.
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End of the Software Error on Server2
The software error can be cleared by deactivating the server project and restarting Server2.
When the project is activated on Server2, the archives are automatically synchronized.
● On Server2, the @RedundantServerState tag is set to "Standby". Server1 remains in status
"Master".
● Server1 stores the return time (date and time) of Server2.
● A redundancy synchronization for the user archive from Server1 is executed on Server2.
Note
If the "Application Health Check" function detects a software error and a client switching
process and process control message were triggered, the following must be done:
● The concerned server must be deactivated.
● The concerned server must be restarted.
Only then can the clients be reconnected to the server. Archive synchronization is only
performed retroactively to the moment a software error was detected by the server.
See also
WinCC Redundancy System Tags (Page 135)
Scenario 3: Faulty Network Connection to Client (Page 130)
Scenario 2: Connection Fault to Partner Server (Page 128)
Scenario 1: Project on server computer not in Runtime (Page 126)
Failure scenarios (Page 125)
Scenario 4: Faulty Process Connection (Page 130)
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5.7 Appendix
5.7
Appendix
5.7.1
WinCC Redundancy system messages
Introduction
The redundancy option makes a series of system messages available. These may be
generated in the alarm logging editor (under "Tools" > "WinCC System Messages").
The following system messages can be output from WinCC Redundancy:
Message No.
WinCC Message Text
1012200
REDRT:Partner station fails
WinCC was terminated on the partner server.
1012201
REDRT:Partner station restarts
WinCC was restarted on the partner server.
1012202
REDRT:Projects are not functionally identical
1012203
REDRT:Archive synchronization failed
1012204
REDRT:Internal error in Redundancy
1012205
REDRT:Communication error to partner
The connection to the server failed
1012206
REDRT:Communication to partner reestablished
The connection to the server is restored
1012207
REDRT:Partner server - WinCC not activated
Upon startup, system detected that WinCC was not started.
1012208
REDRT:Archive synchronization started
This message is issued at the start of an archive synchronization
1012209
REDRT:Archivd synchronization terminated
This message is issued at the end of an archive synchronization
1012216
REDRT:Synchronization interrupted
Synchronization interrupted by another failure
1012217
REDRT:Partner server project not activated
During start-up the system detects that WinCC is not running on the partner
server, or that Runtime is not run
1012218
SWITCH:Client was automatically switched
Client was automatically switched to the partner server
1012219
SWITCH:Client was manually switched
Client was manually switched to the partner server
1012220
REDRT: Synchronization not ready for all user archives
The synchronization is not ready for all locally configured user archives, since the
archive structure on the partner server differs for at least one archive, or
synchronization has not been activated on the partner server.
1012221
REDRT: Synchronization ready for all user archives.
The synchronization is ready for the locally configured user archives and the
archive structure corresponds to that of the partner server.
1012226
REDRT:Partner server project activated
During start-up the system detected that WinCC is activated on the partner server.
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134
Message No.
WinCC Message Text
1012227
REDRT:Error - partner computer not a server
During start-up the system detected that the configured partner computer is not
a server.
1012240
REDRT: Error<Error Description> in <Name of Application> triggers switch.
Switch was triggered by application health check due to an error in the named
application.
1012241
REDRT: Switch to status <Status Description>
Message indicating status change.
1012244
REDRT: Overload during online synchronization of alarm logging
Messages to synchronization too large.
1012245
REDRT: Loss of serial connection
1012246
REDRT: Serial connection reestablished
1012247
REDRT: <Computer name where the message was generated> OS Server
(Master) <Computer name> OS Server (Standby) <Computer name>
Redundance error
Depending on the failure scenario, the master server and the standby server send
the redundance error or one of the two servers. Redunance is endangered.
1012248
REDRT: OS server (standby) redundancy reestablished
1012349
REDRT: Connection via network card (MAC)-Address lost
The connection to the partner server via redundant LAN is interrupted or lost.
1012350
REDRT: Connection via network card (MAC)-Address reestablished
The connection to the partner server via redundant LAN is reestablished.
1012351
REDRT:RedundancyControl: System blockage detected. Switch to Fault status.
1012352
REDRT:RedundancyControl: System blockage detected. Restart your computer
as soon as possible.
1012353
RedundancyControl: Status in FAULT changed, but partner server is not available
1012354
RedundancyControl: Status in FAULT changed, but server isolation is not
activated
1012355
RedundancyControl: Status in FAULT changed, but server isolation is locked by
@1%s@ Reason: @2%s@
1012356
RedundancyControl: Status in FAULT changed => server is isolated
1012357
RedundancyControl: Status in FAULT changed, but automatic restart is not
activated
1012358
RedundancyControl: Status in FAULT changed, but automatic restart is locked
because the network adapter is disconnected and DHCP is enabled
1012359
RedundancyControl: Computer restart is locked by @1%s@ Reason: @2%s@
1012360
RedundancyControl: Computer restart was canceled because the last restart was
executed while less than @1%s@ s have expired
1012361
RedundancyControl: Computer restart was canceled because no further restart
is permitted for the duration of @2%s@ s after @1%s@ restarts
1012362
RedundancyControl: Restarting computer in @1%s@ s
1012700
Self-diagnostics: Value @7%s@ of node @10%s@ is invalid.
1012701
Self-diagnostics: Value @7%s@ of node @10%s@ has exceeded the HIGH error
limit.
1012702
Self-diagnostics: Value @7%s@ of node @10%s@ has undershot the LOW error
limit.
1012703
Self-diagnostics: @100%s@: Value @7%s@ of station @10%s@ has violated
the warning limit HIGH.
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Redundant Systems
5.7 Appendix
Message No.
WinCC Message Text
1012704
Self-diagnostics: @100%s@: Value @7%s@ of station @10%s@ has undershot
the LOW error limit.
1012705
Self-diagnostics: @100%s@: Value @7%s@ of node @10%s@ no longer
exceeds the error limit.
1012706
Self-diagnostics: @100%s@: Value @7%s@ of node @10%s@ is OK.
1012707
Self-diagnostics: @100%s@: Node @10%s@ causes @2%s@.
See also
Abbreviations (Page 136)
WinCC Redundancy System Tags (Page 135)
5.7.2
WinCC Redundancy System Tags
Introduction
The @RM_MASTER and @RM_MASTER_NAME system tags are used by WinCC
Redundancy for Master/Standby control of the two redundant servers and for client changing.
These system tags can also be read and changed by other applications and scripts.
Note
Open the Redundancy editor and close it again using "OK" so that the system tags are set
up by WinCC Redundancy.
WinCC Redundancy System Tags
@LocalMachineName
This tag contains the local computer name.
@RedundantServerState
The tags shows the redundancy status of this server.
Value range:
0: Undefined status (start value)
1: Server is "Master"
2: Server is "Standby"
3: Server is "Fault"
4: Server is standalone (no redundant operation)
@RM_MASTER
This @RM_MASTER tag is set to identify the server computer
as "Master". If the server computer is "Standby", the
@RM_MASTER tag is reset.
@RM_MASTER_NAME
The tag "@RM_MASTER_NAME" contains the name of the
master server, for example "SERV_4".
@RM_SERVER_NAME
This tag contains the name of the server to which a client is
connected.
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Redundant Systems
5.7 Appendix
WinCC Redundancy System Tags
@RM_UA_ONL_"Archiv name"
Is only used for diagnosis. A separate tag with the
corresponding tag name is inserted for each user archive.
The tag will be set to 1, if the user archive has been changed.
After the online synchronization, the tag will be reset to 0.
@RM_Offline_UA_Name
Is only used for diagnosis. This tag contains the name of the
user archive that has just been matched.
See also
Abbreviations (Page 136)
WinCC Redundancy system messages (Page 133)
5.7.3
Abbreviations
5.7.3.1
Abbreviations
Introduction
Abbreviation
Explanation
AS
Automation System
CS
Configuration System, WinCC configuration
CS
Control System
CTM
Control System Message, message pertaining to the control level
OS
Operator Station
PDA
Process Data Acquisition
RT
WinCC Runtime
RTO
Runtime Object
See also
WinCC Redundancy system messages (Page 133)
WinCC Redundancy System Tags (Page 135)
136
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5.7 Appendix
5.7.3.2
Company Level
Introduction
The corporate level supports global computer integration encompassing all areas of the
corporation.
5.7.3.3
Process control level
Introduction
The process control level is used for operating and visualizing the system. The tasks of the
control level are shared between the servers and the client PCs. These are connected to one
another by means of PC-networks. Servers are responsible for acquiring the process states
of the ASs, and clients for the human-machine interface.
5.7.3.4
Process Level
Introduction
In the process level, automation systems such as ASs and process computers are used in
order to automate industrial processes. For communication among one another and with the
control level, industrial networks (e.g. PROFIBUS) are used.
5.7.3.5
Server
Introduction
The servers at the control level acquire process images, measurement data and messages
from the automation systems over industry networks and store all data in archives complete
with the associated time stamps. Servers can be made redundant by utilizing a second
functionally identical standby computer running in parallel.
5.7.3.6
Client
Introduction
The client computers at the control level serve as the human-machine interface to the entire
plant. The operators of client computers In the event of a failure, an appropriate message is
displayed to the operator. As a rule the operator has to acknowledge these messages.
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Redundant Systems
5.7 Appendix
5.7.3.7
Project
Introduction
A project consists of a group of ASs, a server computer and one or more clients. The project
also includes all data (e.g. programs), settings and configuration data.
5.7.3.8
Archive Memory
Introduction
The archive functions support automatic swapping of data from the hard disk to long-term data
storage devices as well as the deletion of data from the hard disk. An automatic archiving can
be triggered by setting a time or by reaching a set fill level on the storage medium.
138
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Index
Standard project
Change to service project, 90
A
Abbreviations, 136
Activate
Project, 69
Activating, 69
Activating the redundancy servers, 104
Application Health Check, 96, 131
Archive memory, 126, 128
B
Boot-up, 57, 58
Of client, 58
Of the server, 57, 59
C
CAS - Central Archive Server, 13
Central Archive Server, 13
Chronological reporting, 106
Client, 10, 29
Access to server projects, 65
Boot-up, 58
Configuration, 29
Configuring change picture, 47
Configuring computer properties, 26
Configuring in a distributed system, 29
Configuring in server project, 26
Configuring message sequence report, 53
Configuring start picture, 42
Configuring the operator authorizations, 20
creates a new project, 31
Deactivating server project, 71
Defining start properties in multi-user system, 26
Displaying messages of several servers, 51
Displaying of several servers, 49
Displaying pictures of several servers, 45
Editing server picture, 68
Entering in computer list of server, 19
Importing package, 33
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Multiple-station system, 26
Opening project on server, 67
Remote server project activation, 69
Shutdown, 61
Simultaneous start on a server, 10
ThinClient, 10
WebClient, 10
With view to server, 26
Client project, 31
Client/server scenarios, 13
Client/server system, 8
Application of OPC interfaces, 73
Behavior in Runtime, 55
CAS, 13
Central Archive Server, 13
Client types, 10
Configuration, 10
Distributed system, 8, 13
File server, 13
Long-term archive server, 13
Mixed configuration, 10
Multiple-station system, 8
Multi-user system, 13
Possible numbers of clients and servers, 8
Quantity structures, 10
Redundancy, 8, 13
Requirements, 8
Server-server communication, 13
Shutting down the client, 61
Shutting Down the Server, 61
Standard server, 13
Starting up the client, 58
Starting up the server, 57
Usage, 8
WinCC CAS, 13
Clients, 98
Company level, 98
Computer list, 19
Accepting clients, 19
Configuration, 10, 16, 29, 75, 77, 100
Client, 29
Client server systems, 10
Distributed system, 16
File server, 77
Multi-user system, 16
Remote, 62
Server, 16
Configuration server, 75
Configuring, 107, 111
139
Index
Connecting opening
Project , 67
Connectivity station
Service project, 82
D
Data, 45
Displaying from several servers, 49
Displaying of several servers, 45
Diagnostic information
Service project, 83
Display, 45
Data from several servers, 49
From several servers, 45
Distributed system, 8, 13
Client configuration, 29
Configuring, 16
Configuring data output at client, 49
Configuring message sequence report at client,
53
Configuring picture change at client, 47
Creating a client project, 31
Displaying messages at client, 51
Displaying server pictures at client, 45
Package import, 33
Remote configuration, 62
Duplicating project, 118
L
Load online changes
Changes to User Archives for Redundant
Systems, 117
Locking message, 106
active, 106
Passive, 106
Locking message (active), 106
Locking message (passive), 106
Locking message class, 106
Passive, 106
Long-term archive server, 13, 75
Long-term server installation, 75
M
Message, 51
Configuring message sequence report at client,
53
Displaying from several servers, 51
Message sequence report, 53
Multiple-station system, 8
Configuring client, 26
Multi-user project, 17
create, 17
Multi-user system, 13
Configuring, 16
E
Export, 22
Packages, 22
F
File server, 13, 77
Configuration, 77
Installation, 77
I
Implicit update, 22, 33
Import, 33
Packages, 33
Installation, 75, 77
File server, 77
Installation server, 75
140
N
Network, 63
Access to subnetworks, 63
Router, 63
O
OPC interface, 73
In client/server systems, 73
Opening, 67
Operating system, 20
Configuring the operator authorizations, 20
Redundant Systems, 106
Operator privilege, 20
Configuration of client, 20
Setting upon in operating system, 20
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Index
P
Package, 22, 33
Configuring export, 22
Configuring import, 33
Implicit update, 22
Representation in WinCC Explorer, 22, 33
Saving in file system, 22
Picture, 42
Configuring picture change at client, 47
Configuring start picture, 42
Displaying form several servers at client, 45
Editing server project, 68
Server prefix, 42
Preferred server, 13
Configuring, 39
Process control level, 98
Process level, 98
Project, 17, 31, 100
Activating, 69
Creating a new client project, 31
Creating a new project on the server, 17
Deactivating, 71
Duplicate, 118, 120
Remote access, 65
Remote opening, 67
WinCC status, 84
Project Duplicator, 118, 120
Q
Quantity structures, 10
R
Redundancy, 13, 96, 100
Activating the servers, 96
Application Health Check, 96, 131
Chronological reporting, 106
Configuring a preferred server, 39
Entering the servers in Windows, 109
Operating system, 106
Preferred server, 13
Principle of Operation, 101
Requirement, 106
Serial connection between servers, 113, 125
Setup, 104
Switching archives, 96
System messages, 126
Time synchronization, 106
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Configuration, 107
Redundant system
Duplicating projects, 118, 120
Registering redundancy server in Windows, 109
Remote configuration, 62
Access to server project, 65
Activating project, 69
Deactivating a project, 71
Editing picture, 68
Open project, 67
Requirements for redundant systems, 106
Router, 63
Runtime, 55
Archives, 55
Behavior in the event of system errors, 55
Graphics, 55
Messages, 55
Reports, 55
Scripts, 55
System behavior, 55
Text Library, 55
User administrator, 55
S
Scenario, 125
Scenarios, 13
Clients and servers, 13
Script
Service project, 82
SelfDiagnosis, 96
serial cable, 106
Serial connection between redundancy servers, 113
server
Configuring a preferred server, 39
Configuring operator authorizations of client, 20
creates a new project, 17
Remote configuration (requirements), 20
Server, 13, 16, 98
Activating project from client, 69, 71
Boot-up, 57, 59
Configuration, 16
Configuring client in server project, 26
Configuring standard server, 36
Editing picture from client, 68
File server, 13
Long-term archive server, 13
Project access to several clients, 65
Remote configuration (requirements), 19
Server-server communication, 13
Shutdown, 61
141
Index
Specifics of SOFTNET drivers, 59
Specifics with several network cards, 59
Standard server, 13
Server data, 22
Configuring a preferred server, 39
Configuring standard server, 36
Package export, 22
Package import, 33
Server prefix, 42, 45, 47, 49
Server-server communication, 13
Service Mode, 79
Service project, 86
Change to standard project, 90
Configuration, 81
Connectivity station, 82
Definition, 89
Diagnostic information, 83
Non-released components, 82
Restriction, 82
Script, 82
Startup list, 82
Use, 82
Service Project, 80
Activating the interactive operation, 94
Ending the interactive operation, 94
Log off, 93
log on, 93
Requirements, 87
ServiceMode, 79
Setting up redundancy, 104
Setup, 104
Shutdown, 61
Of client, 61
Of the server, 61
Shutting down, 61
Of client, 61
Of the server, 61
SIMATIC Shell, 62, 63
SOFTNET driver with use on server, 59
Standard project, 80, 86
Standard server, 13
Configuring, 36
start screen, 42
Configuring at client, 42
Start-up behavior, 57, 58
Of client, 58
Of the server, 57
Startup list, 10
Server with several clients, 10
Service project, 82
System behavior, 55
System errors, 55
142
System messages, 133
System tags, 135
T
Tag synchronization, 103
ThinClient, 10
Time synchronization, 106
U
Uninterruptible power supply units, 106
W
WebClient, 10
WinCC, 8
Client server systems, 8
Service Mode, 79
ServiceMode, 79
WinCC CAS, 13
WinCC ServiceMode, 79, 86
WinCC Services, 79
WinCC tag @RM_MASTER, 125
WinCC tag @RM_MASTER_NAME, 125
WinCCProjects, 62
Activating remote, 69
Calling, 57
Command , 67
Remote deactivation, 71
WinCCProjects dialog, 57
WinCC: Configurations
System Manual, 02/2013, A5E32318776-AA
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