ClearSCADA 2009 R2.3 Release Notes

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ClearSCADA 2009 R1.4 is the fourth service pack release of ClearSCADA 2009 R1. Its main purpose is to resolve a number of known issues with ClearSCADA 2009 R1 to improve performance and reliability.

Product Enhancements and Resolved Issues

SQL Query Processor

• SQL DML statements can no longer create objects with invalid names.

• Fixed the SQL query processor to output whole number real values as real values when re-generating the SQL statement.

• Fixed SQL CAST operations handling of NULL:

• Return NULL if the argument to the CAST is NULL

• Allow both leading and trailing white-space when converting strings to numeric values

• Return better error messages when CAST operations fail.

• Fixed SQL Query Processor to support (Table1 UNION Table2) AS Alias.

Logic

• Fixed logic program reference checking to not include indirect tag references.

• Fixed a possible crash in logic after importing a logic program that had broken references.

• Fixed a potential crash in the logic engine when a standby server transitioned to the main state. The crash was dependent on a specific sequence of editing actions on a logic program and its dependencies prior to a server change-over.

• Fixed a potential server crash when a logic program is executed with an invalid "Trigger" tag reference. Normally logic programs with invalid "Trigger" tag references are not executed.

Advanced Drivers

• Ensured that hysteresis is applied to both updates when a driver receives two logged data point updates for the same point with the same time stamp. Previously the second update would have a different state to the first if the values are within the hysteresis deadband of a limit.

• The start communications behaviour for outstations in advanced drivers when connected via TCP/IP has been corrected to ensure the start comms request is completed should the socket fail before any message is sent.

• Fixed a crash which could occur in all advanced drivers if the full path name of an object was at or near the maximum length.

• The advanced driver library has been updated to make sure drivers are blocked from attempting to write to Network connections before they have finished connecting.

• Advanced driver logs have been corrected to show 'Port Healthy' when the healthy event is received for the TX port on an eavesdrop channel.

• Master station persistence in advanced drivers has been modified so that configuration changes are applied to any currently running persistence on points.

• The Advanced Driver Network channel type has been corrected to ensure that it will correctly re-connect to an outstations if a problem occurs (when configured as UDP and with Merge Connections enabled).

SCADAPack Modbus Driver

• The driver will no longer attempt to download empty SCADAPack E-Series configuration files.

• Old SCADAPack E-Series config.log files are now deleted before download of configuration.

DNP3 Driver

• DNP3 slave outstation address validation has been corrected to ensure that the address is unique system wide.

OPC Driver

• Defining of OPC Subscriptions and groups are now retried if the initial attempt fails.

IEC-60870-5 Driver

• Single character acknowledgements are now supported for the IEC60870-1-101 protocol.

ICMP Driver

• The ICMP driver has been corrected to ensure that events in the driver are triggered for the correct point. This mainly caused a problem when the driver was started and was particularly visible if new points had been created since the driver was last started as the points would remain in 'Waiting for initial Data' state.

SNMP Manager Driver

• The SNMP Manager driver has been modified so that it will continue to poll for an OID value on an agent after an error has been received. Additionally if we have previously received a successful response from the agent the quality will now be updated as Sensor Failure. The driver will still set the quality to Configuration Error and raise an alarm if it fails after the very first poll.

Pager Driver

• Missing error descriptions have been added to pager channels.

CFX Driver

• Fixed a bug in the CFX Driver that caused exports to fail on 64-bit platforms.

• Fixed a server exception that occurred when attempting to generate a CFX export.

TMX Driver

• TMX 'TSDELTA' logged data for analogue points is in engineering units, but the driver was trying to convert value from raw to engineering and therefore calculating the wrong value. TMX comms log translator wasn't adding delta value to previous absolute value to give total value, so it just showed the delta.

ViewX

• Fixed crash in Pick Action wizard method arguments page when trying to display tooltip for an argument with no description.

• Fixed crash in ViewX when resizing print preview window for a list.

• Fixed problem with OPC Historic navigator not releasing links properly, resulting in side effect of user's remaining logged on until ViewX closed.

• Fixed a ViewX crash when attempting to write an OPC data value during server change-over.

• Modified script forms to appear centered over the main window instead of always appearing on the primary monitor.

• Fixed ViewX lists to correctly handle special attribute columns (e.g. Id, Foreground) containing an empty value because they are used in a left join.

• Fixed crash in the X-Y Plot Settings dialog when trace tag is entered manually rather than browsed for.

• Fixed handling of Ctrl+F4 keyboard shortcut in property forms.

• Modified the way the "Window" menu is updated in ViewX, to prevent it flickering when a list is updated while the menu is open.

• Fixed a ViewX crash that could occur if an action was confirmed while the target server was changing state.

• Fixed a ViewX crash that could occur when clicking on the Database navigator context menu during a server change-over.

• Mimic pick action menus using the "custom" style are now constrained to the monitor that the user clicked on to display the menu.

• Fixed a ViewX crash that could occur if a user opened a trend when there were too many windows open.

• Improved speed of navigation between mimics when the embedded mimic cache is full.

• Fixed potential ViewX crash that could occur if ViewX was closed when the embedded mimic cache was full.

• Fixed mimic bug, where renaming a parameter group did not update animation expressions that reference children of the group.

• Fixed crash caused by closing a mimic containing a non-shared embedded mimic with a tag animation on a parameter.

• Fixed memory leak related to mimics that use parameter groups, embedded mimics, converting pipes to and from polylines, TrendSpec trends, and file upload reports.

• Fixed issue with remote bitmaps on mimics where the request queue could get stalled if more than 10 requests were added in rapid succession.

• Fixed crash in ViewX when changing edit mode in the mimic editor while defining a path for an item and no path segments have been added.

• Fixed ViewX crash when a user attempts to edit database metadata during a server change-over.

• Fixed the incorrectly appearing drop-down selector of the 'flash rate' and 'go to time' combo box.

• Improved parsing within the Expression dialog such that malformed numbers result in a 'Invalid token' error message e.g. 15xyz

• Fixed bug in ViewX where animations on parameters can get lost when loading non-shared embedded mimic instances where another instance of the definition already appears at a higher nesting depth.

• Fixed potential crash when changing embedded mimic instance from shared to non-shared and embedded mimic cache is full.

• Fixed an issue with ViewX mimics where displaying a custom pick menu that included an Object Menu action would create a server link that was not release properly when the menu was closed.

This extra links would remain until ViewX was closed, causing side effects such as the previous user not being fully logged off when a new user logged on or that user logged off.

• Fixed incorrect escaping of percent characters when generating TrendSpec URLs.

• Fixed a ViewX crash that could occur if a user confirmed an action during server change-over.

• Fixed file version problem in trends when exporting or saving trends using ViewX 68 and Version 65.

• The IsLoggedOn property for a user is now updated when a user logs off and list is on display.

• Fixed issue with parameters on non-shared embedded mimics with no default value not updating if they has an initial value of zero. A change from zero to any non-zero value, then back to zero, would update OK.

DBServer

• Fixed a server integrity check error that could occur when creating an instance of a template, and the template contained a logic program that was configured for "On Input Processed", and one or more tag references of the logic program did not exist in the database.

• Fixed crash when querying a search key field after converting an instance that contains objects that have values for the search key field.

• Fixed a possible server crash when importing configuration containing one or more historic points when two or more standby servers are connected to the main server.

• Fixed the 'EndLast' historic calculation algorithm to return the correct quality.

• Modified the functions in server side expressions to return NULL if the first argument is NULL. For example ROUND( NULL, n ) will now return NULL. Note: Server side expressions are available for use in Method Calls and Data Grids.

• DBServer now waits for all drivers to shutdown during server shutdown or controlled change over.

• Prevent non-printable characters being used in database object names.

• Fixed a potential server crash that could occur during controlled change-over.

• Fixed a potential server crash if a mounted archive object was deleted.

• The web server now does not return any data if returning a "Not Modified" response.

• Fixed mounting archive volumes which contain historic data for objects with an ID greater than 999,999 (i.e. more than 6 digits).

• Improved the standby server to check the main server version and refuse the connection if the main server is a newer version than the standby server.

• Fixed a possible standby server crash that could occur when deleting an object that was referenced in one or more schedule action arguments.

• When inserting multiple comments into the event journal all associated with the same event and the event has the exact same timestamp as other events the comments were all allocated the same comment number (of one) preventing the correct order of the comments from being determined. The comments are now allocated sequential comment numbers in the order they are inserted.

• Fixed a possible main server crash that could occur when starting a standby database while a large database was being imported.

• Fixed an issue when looking up strings for list metadata fields, where some items would be returned as "Entry X", X being the value of the entry.

• Fixed bug that prevented execution of schedules with an interval greater than 24 days.

• Fix to ensure that alarm displays on clients connected to standby servers are properly updated when taking exclusive control of AlarmObject, (as another user), on client connected to the main server.

• Fixed a crash which could occur in DB Server when a filtered value map's configuration was modified and then deleted.

• Fixed a main server crash when transferring data file changes to the standby where the data files were very large.

• Fixed minor memory leak when retrieving default arguments for the "GetValue" method of CDataTable.

Miscellaneous

• Fixed CPU identification to report the correct description for Pentium IV CPUs.

• Fixed data access only installation to include missing 64 bit dependencies. This problem prevented 64-bit ODBC applications from functioning correctly.

• Fixed resource handle leak in OLE DB driver.

• Fixed the client connection configuration tool to register both 32 bit and 64 bit connections.

• Modified ViewX & DBServer to ensure the Low Fragmentation Heap is enabled. This should help prevent the performance of memory allocations degrading when the application has been running for a long time.

Previous Versions

• Click here for Release Notes from ClearSCADA 2009 R1.3.

• Click here for Release Notes from ClearSCADA 2009 R1.2.

• Click here for Release Notes from ClearSCADA 2009 R1.1.

• Click here for Release Notes from ClearSCADA 2009 R1.

• For Release Notes from earlier versions of the product, please refer to the Release Notes pages that can be found in the ClearSCADA Releases section of the Control Microsystems Resource Center.

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