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1390
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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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1411
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"L" : ["LINT", "ULINT", "LREAL", "LWORD"]}
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1390
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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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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 _
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