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Среда 23. Октябрь 2019

The main library of the DAQ-source templates appended for a template of the initiative connections processing for assigned output transports

The template of processing input initiative connections was created to provide the latest chain of implementation and support for conception of data acquisition in the passive mode and the initiative connection, that is — the control of associative connections, created by the input transport at each connection.

The function of creation associative output transports at connections is currently only supported by the module "Sockets" and for TCP-sockets.

Sponsored by: BLUE STAR GROUP Ltd

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Среда 23. Октябрь 2019

The main library of the DAQ-source templates appended for a template of the notification by SMS, EMail(SMTP)

The complex template of the notification contains of parts of the dispatcher and the output user protocol of notification by EMail(SMTP) and SMS.

THE DISPATCHER can be performed for pointed messages of the message buffer of OpenSCADA and applied on the Logical level or the controller object of the module JavaLikeCalc.

THE OUTPUT USER PROTOCOL PART "SMS" provides operations with SMS by a GSM-modem connected as serial device. For now, there supported only sending SMS messages to a number of remote cell phone or GSM-modem. For sending there are supported: ECHO disable, PIN check and set, sending in PDU and the Text mode.

THE OUTPUT USER PROTOCOL PART "SMTP" provides operations with a SMTP-server for delivering EMails by their sending through TCP-Socket or SSL. For now, there are supported: TCP, SSL, AUTH, topic encoding for UTF-8.

Sponsored by: SVItoVYR LTD

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Вторник 01. Октябрь 2019

The complex objects conception in the DAQ is formed and documented

In some cases where an object is only a part of a common automated system and does not require deep detailing to the level of signals and parameters (complex tag) around them, including without the need for archiving, it is convenient to unify them in one representative object of the data source OpenSCADA with appropriate consolidated view and object control as a set of simple attributes with violation elements.

The conception is represented currently by the two direct DAQ-templates "SNMP", "UPS" and the representative widget "Object properties" of the "Main elements library of the user interface".

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Пятница 20. Сентябрь 2019

The main elements library of the user interface appended for the extended alarms control frames

The alarm frames serves:

  • Alarms — active (alarmsAct) — to dynamically display the active violations in a tabular form and to highlight them in color and text
  • Alarms — state (alarmsSt) — to display the violations history and to update their dynamically for the current time in a full-format tabular form, to highlight them in color and text and the possibility of multilevel filtering
  • Alarms — report (alarmsStReport) — to display a report document based on a list of violations received from the previous full-format frame of presenting the violations history.

The violations are obtained from the buffer of current-active violations of OpenSCADA and archive(s). In fact, the element implements the primitive "Protocol" functions for violations and extension opportunities.

The main user extension is the ability to define visible table fields from a list of options: atm, qttm, nrmtm, lev, cat, mess, prm, dscr, dscrCust{N}, alrm, cmnt.

Sponsored...

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Вторник 20. Август 2019

The main elements library of the user interface appended for the "Users manager" frame

The element-frame serves to control users from the user interface itself. That is, typically this feature is provided to the SCADA programmer at the Security subsystem configuration, but sometimes there is a need to provide this capability from the user interface and with a few restrictions on controlled users and their groups that this frame performs and generally provides:

  • forming a list of controlled users;
  • the ability to view and change user information for: name, full name, description, password and groups;
  • adding new and deleting existing users.

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Четверг 15. Август 2019

The root page frame of the main elements library of the user interface is significantly expanded and documented

The frame "Root page" is a base element of most interfaces built in OpenSCADA and it was completely documented and significantly expanded for:

  • dynamization of forming the signal object buttons from one base button, with the result possibility of forming very number of signal objects, up to 100 for short names.
  • dynamization and unification of the types of view to their abstract encoding as "viewN", with the result possibility to appoint any other mean to the type of view.
  • correct cleaning the control panels container.

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Понедельник 12. Август 2019

Analysis of the memory consumption and efficiency of the UI module WebVision in the busy environments

The module UI.WebVision was observed in extra memory consumption on a real big task working on Debian 9.

There were performed several actions of measuring about this module work on different Debian versions: 7, 8, 9, 10; where we have seen the clear degradation of effectivity of the memory allocation on Debian versions from 8.

Contacting the Debian community we revealed this problem as a disadvantage of GLibC in implementing memory arenas, which can be highly fragmentated in program environments what actively recreating the threads, due to linking the arenas to threads.

So, to fix this behaviour, we need to set the environment variable MALLOC_ARENA_MAX=1, what was be done for all live disks of the automation Linux distributive.

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Понедельник 12. Август 2019

The graphics group frames of the main elements library of the user interface appended for the graphic parameter calculation

The element implements a dialog of user calculation of the selected graph parameter for the graphically visible data. The user is given an option to select calculations from the built-in library, the privileged user ("root" or in the "ITW" group) has the opportunity to edit or write their own calculation procedure.

In general, the built-in library currently contains the following functions of the user calculation:

  • Sum, at hour.
  • Average and range.

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Среда 01. Май 2019

Completion of revision of the virtual-demo projects

All virtual-demo projects and their libraries were completed in whole revision of their documentation and database files, for: two styles-themes support, removing Cyrillic symbols from identifiers, unification the identifiers and fixing most texts.[подробнее]

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Четверг 18. Апрель 2019

18...21го апреля 2019г. в городе Львов(Украина): Международная научно-практическая конференция FOSS Lviv

Международная научно-практическая конференция FOSS Lviv-2019 пройшла во Львовском национальном университете имени Ивана Франко с 18 по 21 апреля 2019 года.[подробнее]

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