Internal Datapoint Types of the Disaster Recovery System

The Disaster Recovery System has two internal datapoint types:

  • _2x2_FileSync with the instance _2x2_FileSync

  • _2x2_Redundancy with the instance _2x2Redu

  • _2x2_DriverConnectionStates - a datapoint of this type with the syntax _2x2_Driver_<num> is created automatically and filled for each driver handled by the DRS at start-up of the DRS CTRL manager.

_2x2_FileSync

Datapoint Element Data Type Description
Server dyn_string Saves all defined computer names for the file synchronization.
Paraserver string Saves the name of the configuration server for the file synchronization.
Ausnahmedateien dyn_string Saves all files excluded from the file synchronization.
lastUpdates dyn_string Saves the data from the last update.
autoParaServer bool The configuration server is determined by WinCC OA (TRUE). A fixed configuration server has been specified by the user (FALSE).
Verzeichnis dyn_string Directories for the projects of each computer defined in Computer name.
SubProj.SubProjNames dyn_string List of registered sub projects (contains the project names).
SubProj.SubProjDirs dyn_string List of directories that are the source directories for each sub project.
SubProj.SubProjSync dyn_string List of sub projects that will be synchronized.
SubProj.SubProjLastUpdates dyn_string List of the last date when manual synchronization was performed for each sub project.
SubProj.manual bool

  • TRUE => A manually entered source path for the sub project and the value SubProj.SubProjDir will be used (Mandatory setting for manual configuration workstations).

  • FALSE => The paths for the sub project are determined automatically at the configuration workstation (This option is not available for manual configuration workstations).

_2x2_Redundancy

Datapoint Element Data Type Description
state.otherSys bool Displays the current status of each of the others systems - OK (TRUE), not OK (FALSE).
state.active bool Displays whether the local system is the managing (active) system - yes (TRUE), no (FALSE).
state.errorState int Displays the error status number of the active redundancy partner of the local system.
state.maxErrorState int Shows the maximum possible error status number of the local system.
state.break bool Is set to TRUE if the connection to the other system is lost, but its local connection is still running. This information can be used to distinguish between system failures and connection failures.
state.lostConnTime dyn_time

If a connection to the other system or the connection to the RDB/Oracle® or the NGA database is lost, the times are saved here.
state.gotConnTime dyn_time

When the connections to the RDB/Oracle® or the NGA database and to the other system are re-established, the times are saved here.
state.dbConn bool Displays whether the active server of the local system has a connection to the Oracle® database.
state.histSyncDone dyn_int Saves the status of the synchronization for each time interval between loss and reconnection.

The following states are relevant For NGA:

The panel "2x2 Redundancy | Database synchronization" shows the status of the synchronization of historical values:

OPEN (0)

TODO (2)

FAILED (12)

BUSY (25)

DONE (30)
state.PSSValues dyn_int Values in the PSS database for each time interval between loss and reconnection.
state.SSSValues dyn_int Values in the SSS database for each time interval between loss and reconnection.
state.splitModeOn bool Displays whether the active server of the local system is running in split mode - yes (TRUE), no (FALSE).
state.PSSActiveHost string Active host on the PSS.
state.ManagerState int

State of the Disaster Recovery System Manager.

0 => unknown state

1 => start / initialize

2 => started / running
state.AsciiState bool

Status of the ASCII Manager of the DRS Configuration Synchronization

FALSE => ASCII Manager stopped (Import / Export stopped)

TRUE => ASCII Manager running (Import / Export started)
state.SystemFaultTime time

Timestamp of the Error/Switching of the system.

Caution

The timestamp is reset to the value 0 (1.1.1970) when the connection between the DRS is re-established.
state.maxOfflineErrorState int Maximum error state during a system failure.
state.projectWasStopped bool Shows the information whether the entire project or just the DRS CTRL manager was restarted. The state is set when the DRS CTRL manager is started.
cmd.switch bool If TRUE, then a system switchover is carried out.
cmd.sendAll bool If TRUE, then a general synchronization of the online data and the alert status is carried out.
cmd.restart bool If TRUE, the connection to the local system is restarted.
cmd.ascExp bool If TRUE, then an ASCII export is performed on the local system for the configuration synchronization.
cmd.histSync.from time Sets the start time for a historical synchronization. This is always set simultaneously with histSync.to.
cmd.histSync.to time Sets the end time for a historical synchronization. This is always set simultaneously with histSync.from.
cmd.ascImp bool If TRUE, then an ASCII import is performed on the local system for the configuration synchronization.
settings.lastExportedTime time Saves the time of the last ASCII export of the configuration synchronization.
settings.driver dyn_uint

Defines the driver mode for the driver managers managed by the DRS (according to the order in settings.handleManager):

0 -> Start / Stop - drivers are stopped and started using simulation drivers

1 -> Active / Passive - driver connections are set to active/inactive.

2 -> Active / Standby - driver connections are set to active/Standby (alive check of the driver connection). Supported only for IEC 104 drivers.
settings.handleManager dyn_string List of all numbers of managers that will be started when the system is set to active and stopped when it is set to passive.

Syntax:

<idx>;<manager>;<no>;<options>

<idx> - manager index according to Console

<manager> - manager name

<no> - manager number

<options> - manager options
settings.simDriver dyn_string

List with all of the numbers of the simulation driver managers that are started when the system is set to passive.

Syntax:

<idx>;<manager>;<no>;<options>

<idx> - manager index according to Console

<manager> - manager name

<no> - manager number

<options> - manager options
settings.PSSprojName string Project name on the PSS.
settings.SSSprojName string Project name on the SSS.
settings.PSSAscExp string Directory where the ASCII export files for the configuration synchronization are saved.
settings.SSSAscImp string Directory where the ASCII import files for the configuration synchronization are saved.
settings.PSSsrv1 string Name of the first PSS server.
settings.PSSsrv2 string Name of the second PSS server.
settings.SSSsrv1 string Name of the first SSS server.
settings.SSSsrv2 string Name of the second SSS server.
settings.ascInternal dyn_string List of internal datapoint types whose original values are synchronized cyclically.
settings.PSS_System string WinCC OA system name of the PSS.
settings.SSS_System string WinCC OA system name of the SSS.
settings.dpSync dyn_string List of the datapoints that are synchronized at runtime.
settings.ascIntervall int Time interval in minutes at which the configuration is synchronized.
settings.switchDelay int The delay before an automatic system switchover is performed when both systems are running and connected to each other (e.g. failback).
settings.fileIntervall int Time interval in minutes during which the file synchronization is performed.
settings.PSS_Client string The name of the client project on the PSS.
settings.SSS_Client string The name of the client project of the SSS.
settings.dpsNotReplicated dyn_string List of the datapoints whose values are not synchronized.
settings.allowAutomicSwitch bool If TRUE, then the automatic switching to the PSS is allowed when both systems are running.
settings.managerStartDelayTime int The delay time between the individual manager starts (hierarchical start) in case of a system switchover.
settings.PSSOraDbName string Name of the Oracle® database on the PSS.
settings.SSSOraDbName string Name of the Oracle® database of the SSS.
settings.oraUserName string The user name of the database user.
settings.oraUserPass string The password of the database user (encoded).
settings.prefClientSys string Currently not in use.
settings.useServerProj bool Indicates whether the client uses the same project names as the server (TRUE) or own ones (FALSE).
settings.automaticClientSwitch bool Specifies whether the visualization on the client is switched automatically (currently not in use).
settings.maxParaFileNum int Specifies the maximum number of ASCII files used to cache the datapoints exchanged between the systems. For more information, see the description of Configuration - Step 4 - Internal DPTs Synchronization.
settings.maxParaFileSize int Specifies the maximum size of ASCII files used to cache the datapoints exchanged between the systems. For more information, see the description of Configuration - Step 4 - Internal DPTs Synchronization.
activation.syncActivated bool The synchronization of the online values and the acknowledgement states is active (TRUE).
activation.ascActivated bool The synchronization of the configuration data is active (TRUE).
activation.fileActivated bool The synchronization of the project files is active (TRUE).
alarm.fileSyncAlarm int Impulse alert if any problems occur during the file synchronization.
alarm.paraSyncAlarm int Impulse alert if any problems occur during the configuration synchronization.
alarm.histSyncAlarm int Impulse alert if any problems occur during the historical database synchronization.
alarm.onlineValueSyncAlarm int Impulse alert if any problems occur when the setting the online values on the SSS.
alarm.distConnection bool Displays the connection status between the PSS and the SSS. If the connection is interrupted (FALSE), an alert is triggered.
client.number uint Number of the client who dispatched the command or for whom the command is intended
client.userInfo string Encrypted user information.
client.command string

Command that is passed or that is expected, the following commands are implemented:

  • LOGIN => Login with the user credentials of DpEI.userInfo

  • LOGOUT => Logout of the user at the UI with the passed number

  • EXIT => Shutdown of the UI with the passed number
settings.ngaBackends dyn_string List of NGA backends (DPs) that can be monitored by using DRS. This DPE is used only when PostgreSQL®/NGA is used.

_2x2_DriverConnectionStates

Datapoint element Data type Description
ConnectionNames dyn_string List of connection names of the respective driver.
ConnectionActiveStates dyn_uint

Indicates the state of the driver connection:

0 -> passive

1 -> active

2 -> standby (for IEC 104 drivers only)
DriverType string Manager name of the driver.
StandBy bool

TRUE -> driver connection is in standby

FALSE -> driver connections is active