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doc/standards.rst
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 29 Aug 2018 18:53:02 +0300
changeset 2301 5b8a7dd43f9f
parent 811 66a8812457d6
child 3925 1d383b4c0a23
permissions -rw-r--r--
Avoid usage of localized strings before initialization during import in many modules

This happens if import is done before i18n setup
(InstallLocalRessources()).
This affects PLCOpenEditor mostly. Beremiz IDE is free from this issue, but moving
initialization from import should make modules more robust.
Otherwise execution result depends on where and when import was done
and this is not a good thing.

Some modules (ConfigTreeNode, features, CodeFileEditor related
classes) still have this, but they are used only in Beremiz.
Most problems result in non-working internatialization.
In some cases (VariablePanel) there is backtrace, because localized
key is not found in non-localized dictionary.
811
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IEC 61131-3
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    IEC-61131 is a normative document provided by the standards organization IEC













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    (International Electrotechnical Commission) and describing a standard for













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    implementing programmable controllers.













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    The part 3 of this document (commonly named IEC 61131-3) specifies syntax and 













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    semantics for programming language for programmable controllers. Beremiz













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    implements all the languages described in this document. 













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    http://www.iec.eu













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PLCopen TC6













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    PLCopen is a vendor- and product-independent worldwide association defining













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    international standards for various topics related to control programming.













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    For this purpose, PLCopen has 6 technical committees.













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    The goal of the sixth committee (TC6) is to define a standard file format, 













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    based on XML, for exchanging programmables controllers programmed using 













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    IEC 61131-3 languages. Beremiz uses this file format for saving the PLC













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    programs of projects.













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    http://www.plcopen.org













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    31














beremiz