plcopen/definitions.py
author alexander@60.125.16.172.in-addr.arpa
Tue, 23 Aug 2016 10:24:47 +0500
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child 1625 be3f68731798
permissions -rw-r--r--
- Fixed startup from ancestor code.
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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from os.path import join, split, realpath
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sd = split(realpath(__file__))[0]
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# Override gettext _ in this module
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# since we just want string to be added to dictionnary
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# but translation should happen here
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_ = lambda x:x
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LANGUAGES = ["IL","ST","FBD","LD","SFC"]
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LOCATIONDATATYPES = {"X" : ["BOOL"],
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                     "B" : ["SINT", "USINT", "BYTE", "STRING"],
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                     "W" : ["INT", "UINT", "WORD", "WSTRING"],
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                     "D" : ["DINT", "UDINT", "REAL", "DWORD"],
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                     "L" : ["LINT", "ULINT", "LREAL", "LWORD"]}
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#-------------------------------------------------------------------------------
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#                        Function Block Types definitions
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#-------------------------------------------------------------------------------
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StdTC6Libs = [(_("Standard function blocks"),  join(sd, "Standard_Function_Blocks.xml")),
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              (_("Additional function blocks"),join(sd, "Additional_Function_Blocks.xml"))]
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StdFuncsCSV = join(sd,"iec_std.csv")
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# FIXME : since std fb now loaded from TC6 file, is that still necessary ?
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StdBlockComments = {
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    "SR": _("SR bistable\nThe SR bistable is a latch where the Set dominates."),
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    "RS": _("RS bistable\nThe RS bistable is a latch where the Reset dominates."),
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    "SEMA": _("Semaphore\nThe semaphore provides a mechanism to allow software elements mutually exclusive access to certain ressources."),
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    "R_TRIG": _("Rising edge detector\nThe output produces a single pulse when a rising edge is detected."),
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    "F_TRIG": _("Falling edge detector\nThe output produces a single pulse when a falling edge is detected."),
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    "CTU": _("Up-counter\nThe up-counter can be used to signal when a count has reached a maximum value."),
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    "CTD": _("Down-counter\nThe down-counter can be used to signal when a count has reached zero, on counting down from a preset value."),
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    "CTUD": _("Up-down counter\nThe up-down counter has two inputs CU and CD. It can be used to both count up on one input and down on the other."),
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    "TP": _("Pulse timer\nThe pulse timer can be used to generate output pulses of a given time duration."),
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    "TON": _("On-delay timer\nThe on-delay timer can be used to delay setting an output true, for fixed period after an input becomes true."),
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    "TOF": _("Off-delay timer\nThe off-delay timer can be used to delay setting an output false, for fixed period after input goes false."),
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    "RTC": _("Real time clock\nThe real time clock has many uses including time stamping, setting dates and times of day in batch reports, in alarm messages and so on."),
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    "INTEGRAL": _("Integral\nThe integral function block integrates the value of input XIN over time."),
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    "DERIVATIVE": _("Derivative\nThe derivative function block produces an output XOUT proportional to the rate of change of the input XIN."),
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    "PID": _("PID\nThe PID (proportional, Integral, Derivative) function block provides the classical three term controller for closed loop control."),
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    "RAMP": _("Ramp\nThe RAMP function block is modelled on example given in the standard."),
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    "HYSTERESIS": _("Hysteresis\nThe hysteresis function block provides a hysteresis boolean output driven by the difference of two floating point (REAL) inputs XIN1 and XIN2."),
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}
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for block_type in ["CTU", "CTD", "CTUD"]:
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    for return_type in ["DINT", "LINT", "UDINT", "ULINT"]:
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        StdBlockComments["%s_%s" % (block_type, return_type)] = StdBlockComments[block_type]
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def GetBlockInfos(pou):
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    infos = pou.getblockInfos()
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    # FIXME : as well
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    infos["comment"] = StdBlockComments[infos["name"]]
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    infos["inputs"] = [
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        (var_name, var_type, "rising")
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        if var_name in ["CU", "CD"]
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        else (var_name, var_type, var_modifier)
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        for var_name, var_type, var_modifier in infos["inputs"]]
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    return infos
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#-------------------------------------------------------------------------------
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#                           Data Types definitions
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#-------------------------------------------------------------------------------
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"""
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Ordored list of common data types defined in the IEC 61131-3
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Each type is associated to his direct parent type. It defines then a hierarchy
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between type that permits to make a comparison of two types
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"""
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TypeHierarchy_list = [
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    ("ANY", None),
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    ("ANY_DERIVED", "ANY"),
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    ("ANY_ELEMENTARY", "ANY"),
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    ("ANY_MAGNITUDE", "ANY_ELEMENTARY"),
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    ("ANY_BIT", "ANY_ELEMENTARY"),
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    ("ANY_NBIT", "ANY_BIT"),
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    ("ANY_STRING", "ANY_ELEMENTARY"),
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    ("ANY_DATE", "ANY_ELEMENTARY"),
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    ("ANY_NUM", "ANY_MAGNITUDE"),
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    ("ANY_REAL", "ANY_NUM"),
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    ("ANY_INT", "ANY_NUM"),
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    ("ANY_SINT", "ANY_INT"),
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    ("ANY_UINT", "ANY_INT"),
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    ("BOOL", "ANY_BIT"),
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    ("SINT", "ANY_SINT"),
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    ("INT", "ANY_SINT"),
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    ("DINT", "ANY_SINT"),
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    ("LINT", "ANY_SINT"),
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    ("USINT", "ANY_UINT"),
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    ("UINT", "ANY_UINT"),
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    ("UDINT", "ANY_UINT"),
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    ("ULINT", "ANY_UINT"),
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    ("REAL", "ANY_REAL"),
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    ("LREAL", "ANY_REAL"),
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    ("TIME", "ANY_MAGNITUDE"),
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    ("DATE", "ANY_DATE"),
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    ("TOD", "ANY_DATE"),
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    ("DT", "ANY_DATE"),
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    ("STRING", "ANY_STRING"),
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    ("BYTE", "ANY_NBIT"),
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    ("WORD", "ANY_NBIT"),
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    ("DWORD", "ANY_NBIT"),
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    ("LWORD", "ANY_NBIT")
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    #("WSTRING", "ANY_STRING") # TODO
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]
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DefaultType = "DINT"
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DataTypeRange_list = [
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    ("SINT", (-2**7, 2**7 - 1)),
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    ("INT", (-2**15, 2**15 - 1)),
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    ("DINT", (-2**31, 2**31 - 1)),
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    ("LINT", (-2**31, 2**31 - 1)),
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    ("USINT", (0, 2**8 - 1)),
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    ("UINT", (0, 2**16 - 1)),
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    ("UDINT", (0, 2**31 - 1)),
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    ("ULINT", (0, 2**31 - 1))
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]
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ANY_TO_ANY_FILTERS = {
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    "ANY_TO_ANY":[
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        # simple type conv are let as C cast
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        (("ANY_INT","ANY_BIT"),("ANY_NUM","ANY_BIT")),
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        (("ANY_REAL",),("ANY_REAL",)),
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        # REAL_TO_INT
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        (("ANY_REAL",),("ANY_SINT",)),
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        (("ANY_REAL",),("ANY_UINT",)),
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        (("ANY_REAL",),("ANY_BIT",)),
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        # TO_TIME
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        (("ANY_INT","ANY_BIT"),("ANY_DATE","TIME")),
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        (("ANY_REAL",),("ANY_DATE","TIME")),
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        (("ANY_STRING",), ("ANY_DATE","TIME")),
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        # FROM_TIME
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        (("ANY_DATE","TIME"), ("ANY_REAL",)),
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        (("ANY_DATE","TIME"), ("ANY_INT","ANY_NBIT")),
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        (("TIME",), ("ANY_STRING",)),
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        (("DATE",), ("ANY_STRING",)),
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        (("TOD",), ("ANY_STRING",)),
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        (("DT",), ("ANY_STRING",)),
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        # TO_STRING
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        (("BOOL",), ("ANY_STRING",)),
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        (("ANY_BIT",), ("ANY_STRING",)),
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        (("ANY_REAL",), ("ANY_STRING",)),
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        (("ANY_SINT",), ("ANY_STRING",)),
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        (("ANY_UINT",), ("ANY_STRING",)),
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        # FROM_STRING
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        (("ANY_STRING",), ("BOOL",)),
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        (("ANY_STRING",), ("ANY_BIT",)),
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        (("ANY_STRING",), ("ANY_SINT",)),
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        (("ANY_STRING",), ("ANY_UINT",)),
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        (("ANY_STRING",), ("ANY_REAL",))],
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    "BCD_TO_ANY":[
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        (("BYTE",),("USINT",)),
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        (("WORD",),("UINT",)),
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        (("DWORD",),("UDINT",)),
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        (("LWORD",),("ULINT",))],
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    "ANY_TO_BCD":[
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        (("USINT",),("BYTE",)),
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        (("UINT",),("WORD",)),
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        (("UDINT",),("DWORD",)),
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        (("ULINT",),("LWORD",))]
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}
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# remove gettext override
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del _