doc/standards.rst
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Tue, 12 Sep 2017 16:49:35 +0300
changeset 1800 1711339585ce
parent 811 66a8812457d6
child 3925 1d383b4c0a23
permissions -rw-r--r--
make possible to turn off at compile time online debugging, logging
and external sync functionality

Defines TARGET_DEBUG_DISABLE, TARGET_LOGGING_DISABLE, TARGET_EXT_SYNC_DISABLE
allow to use generated PLC code in low-cost microcontrollers,
integrate into external programs and so on.

main.c:
extern void __run(void);
int main(void)
{
for(;;) {
__run();
// sleep common_ticktime__ ns
// add common_ticktime__ ns to __CURRENT_TIME
}
return 0;
}

Compile for example for arm bare-metal:
../build$ arm-none-eabi-gcc \
-DTARGET_DEBUG_DISABLE -DTARGET_LOGGER_DISABLE
-DTARGET_EXT_SYNC_DISABLE \
-flto -ffunction-sections -fdata-sections -I../../../../matiec/lib/C \
*.c \
-nodefaultlibs --specs=nano.specs -Wl,--static -Wl,--gc-section -Wl,--start-group -lc -lm -lnosys -lgcc -Wl,--end-group
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IEC 61131-3
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===========
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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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===========
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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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