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doc/overview.rst
author Edouard Tisserant
Fri, 10 Jan 2020 13:15:07 +0100
branchsvghmi
changeset 2822 9101a72a1da0
parent 810 707e2be17a43
child 3925 1d383b4c0a23
permissions -rw-r--r--
SVGHMI: added a watchdog. To ensure that the whole chain is checked, watchdog use a periodic echo of a hearteat variable. JS client code systematically register /HEARTBEAT at 1s update freq, and reacts on updates of /HEARTBEAT by systematically incrementing it. C code catch /HEARTBEAT update and feeds python-implemented watchdog. For now, watchdog does nothing when tiggered
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Project overview
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In order to target the widest possible range of programmable devices and keep efficient, Beremiz use C code as an intermediate language. 













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To be executed, C needs to be compiled. `GCC <http://gcc.gnu.org>`_ serve that purpose perfectly.













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PLC program is expressed in languages defined in IEC-61131, including graphical languages. Thanks to PLCopen TC2, those graphical languages have a standardised representation, in XML.













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To be continued.













beremiz