File ¶ ReadNCFile SMC_ReadNCFile (FunctionBlock) Stream SMC_FileStream2 (FunctionBlock) EOS (Property) Name (Property) Open (Method) ReadPosInBytes (Property) SizeInBytes (Property) SMC_ITextStream (Interface) Close (Method) EOS (Property) Name (Property) Read (Method) Reset (Method) SMC_StringStream2 (FunctionBlock) AppendData (Method) Close (Method) EOS (Property) Init (Method) Name (Property) SetEndOfData (Method) Token SMC_NCTokenizer (FunctionBlock) DoBeforeLeave (Action) ProceedToNextToken (Action) ResetOutputs (Action) SetDelimiters (Method) SMC_ReadNCTokens (FunctionBlock) Append3dMode (Action) AppendDynamics (Action) DoBeforeLeave (Action) IncreaseNumElems (Action) StepSuppress (Action) SMC_Token (FunctionBlock) GetNumber (Method) GetString (Method) SetNumber (Method) SetString (Method) SMC_TokenQueue (FunctionBlock) Append (Method) Capacity (Method) EndOfData (Method) Full (Method) GetFirst (Method) GetFromEnd (Method) GetFromStart (Method) Init (Method) IsEmpty (Method) NumElems (Method) RemoveAll (Method) RemoveFirst (Method) RemoveLast (Method) SetEndOfData (Method) SetPointer (Method) SpaceLeft (Method) TokenScanner Helpers SMC_Char_IsDigit (Function) SMC_Char_IsHexDigit (Function) SMC_Char_IsLetter (Function) SMC_NCScanner_DelimConfig (Struct) SMC_ReadNCQueue (FunctionBlock) CloseFile (Action) help functions SMC_StringBuffer (FunctionBlock)

ReadNCFile ¶ SMC_ReadNCFile (FunctionBlock) Stream SMC_FileStream2 (FunctionBlock) EOS (Property) Name (Property) Open (Method) ReadPosInBytes (Property) SizeInBytes (Property) SMC_ITextStream (Interface) Close (Method) EOS (Property) Name (Property) Read (Method) Reset (Method) SMC_StringStream2 (FunctionBlock) AppendData (Method) Close (Method) EOS (Property) Init (Method) Name (Property) SetEndOfData (Method) Token SMC_NCTokenizer (FunctionBlock) DoBeforeLeave (Action) ProceedToNextToken (Action) ResetOutputs (Action) SetDelimiters (Method) SMC_ReadNCTokens (FunctionBlock) Append3dMode (Action) AppendDynamics (Action) DoBeforeLeave (Action) IncreaseNumElems (Action) StepSuppress (Action) SMC_Token (FunctionBlock) GetNumber (Method) GetString (Method) SetNumber (Method) SetString (Method) SMC_TokenQueue (FunctionBlock) Append (Method) Capacity (Method) EndOfData (Method) Full (Method) GetFirst (Method) GetFromEnd (Method) GetFromStart (Method) Init (Method) IsEmpty (Method) NumElems (Method) RemoveAll (Method) RemoveFirst (Method) RemoveLast (Method) SetEndOfData (Method) SetPointer (Method) SpaceLeft (Method) TokenScanner Helpers SMC_Char_IsDigit (Function) SMC_Char_IsHexDigit (Function) SMC_Char_IsLetter (Function) SMC_NCScanner_DelimConfig (Struct)

SMC_GCODE_TEXT (STRUCT) ¶ TYPE SMC_GCODE_TEXT : STRUCT This data type is used to transmit the string of the last decoded line of the CNC file to the FB SMC_GCodeViewer . The data source is connected to the eponymous output of the SMC_NCDecoder module. InOut: Name Type Comment str STRING(80) String representing the current line iLineNumber DINT Line number (from N word) bNewLine BOOL TRUE when a new line has been decoded in this cycle; FALSE else bClearList BOOL TRUE when the Decoder has been started from new, what implies that a buffer that may store the last lines should be emptied.

SMC_GCODE_WORD (STRUCT) ¶ TYPE SMC_GCODE_WORD : STRUCT This data type includes the data of one G-code word like ‘N20’ or ‘G1’. InOut: Name Type Initial Comment fValue LREAL 0 Value as LREAL . This value is used by SMC_NCDecoder . If the SMC_GCODE_WORD is created programatically, this value has to be set for all g-words (e.g. for ‘M5’, set it to 5.0). diValue DINT 0 Value as DINT . Not used any more. If the SMC_GCODE_WORD is created programatically, we recommend to set this value to TO_DINT(fValue). pAdr POINTER TO BYTE 0 If <> 0 , the value of this word is specified by a variable. pAdr points to this variable. byLetter BYTE 0 ASCII-code of the letter of the word, e.g. 69 for ‘F’ byVarType BYTE 0 If < 32 , contains the variable type as defined in SMC_VARTYPE . If >= 32 , contains 32 + the variable type as defined in IBaseLibrary.TypeClass

SMC_GEOINFO (STRUCT) ¶ TYPE SMC_GEOINFO : STRUCT This data type is designed to store a path object, i.e. a segment of the programmed path, for example a line, arc or spline segment. In addition to the geometry of these objects, further information can be stored as for example the velocity at the beginning/end of the path or as labels. Note As from V3.5 SP2 of the programming system, iSourceLine_No stores the line number of the CNC word and the sentence number is stored in diSentenceNo . In former versions, in particular CODESYS V2.3, the sentence number has been stored in iSourceLine_No . The parameters dP1 -- dP18 are used for specific use cases. Depending on iMoveType , these parameters contain different information: LIN, LINPOS : Complete information stored in piStartPos and piDestPos CLW, CCLW : The coordinates are stored in the coordinate system (vX, vY, vN) . dP1 : X-coordinate of circle center dP2 : Y-coordinate of circle center dP3 : Circle radius dP4 : Z-coordinate of circle SPLINE : dP1-dP8 : Spline parameter dP9-dP18 : Additional spline parameter ELLCLW, ELLCCLW : dP1 : X-coordinate of circle center dP2 : Y-coordinate of circle center dP3 : X-component of the main axis unit vector dP4 : Y-component of the main axis unit vector dP5 : Length of the main axis dP6 : Length of the subaxis dP7 : Angle between main axis and X axis (in rad) dP8 : Ratio P6/P5 INITPOS : – MCOMMAND: for M-commands ( iMoveType = 120 ) the M-function number SMC_GetMParameters during Interpolation. dT1 and dT2 are the start and end parameters for circle/spline. LIN, LINPOS : Complete information stored in piStartPos and piDestPos CLW, ELLCLW : dT1 : Start angle in degree, oriented mathematically (0=east, 90=north, 180=west, 270=south) dT2 : Apex angle of circle in degree (e.g. 90=quarter of circle, 180 = semicircle) CCLW, ELLCCLW : dT1 : Start angle in degree oriented mathematically (0=east, 90=north, 180=west, 270=south) dT2 : Negative apex angle of circle in degree (e.g. -90=quarter of circle, -180 = semicircle) SPLINE : Start and end value of parameter t, Spline, 0 and 1 by default. INITPOS : – InOut: Name Type Initial Comment iObjNo DINT 0 Arbitrary object number (irrelevant for current path description). It’s a 1-based, consecutive ID. iSourceLine_No DINT 0 Stores the 0-based line number inside the CNC source file diSentenceNo DINT 0 Stores the G-code sentence number (value of the N-word) iMoveType SMC_MOVTYP Value defining the geometrical type of the object. SMC_MOVTYP (ENUM) piStartPos SMC_POSINFO Structure exactly describing the start position of the object. Will be ignored in case of iMoveType = INITPOS . piDestPos SMC_POSINFO Structure exactly describing end position of the object dP1 LREAL 0 dP2 LREAL 0 dP3 LREAL 0 dP4 LREAL 0 dP5 LREAL 0 dP6 LREAL 0 dP7 LREAL 0 dP8 LREAL 0 dP9 LREAL 0 dP10 LREAL 0 dP11 LREAL 0 dP12 LREAL 0 dP13 LREAL 0 dP14 LREAL 0 dP15 LREAL 0 dP16 LREAL 0 dP17 LREAL 0 dP18 LREAL 0 vX SMC_Vector3D STRUCT(dX := 1, dY := 0, dZ := 0) X-axis of the local coordinate system, expressed in world coordinates. vY SMC_Vector3D STRUCT(dX := 0, dY := 1, dZ := 0) Y-axis of the local coordinate system, expressed in world coordinates. vN SMC_Vector3D STRUCT(dX := 0, dY := 0, dZ := 1) Z-axis of the local coordinate system, expressed in world coordinates. dT1 LREAL 0 Start parameter for circle/spline dT2 LREAL 1 Apex angle/end parameter for circle/spline dToolRadius LREAL 0 Information necessary for path processing with SMC_ToolCorr or SMC_RoundPath . Irrelevant else. dVel LREAL 0 Target velocity to be reached (in path units/sec) dVelEnd LREAL 0 Prescribed velocity at end of object (path units/sec) dVelEndStored LREAL Maximum speed at end of segment before call to SMC_CheckVelocities . dVelEndSafe LREAL 0 Computed for the quadratic velocity profile: maximum <= dVelEnd that allows to reach dVelEndSafe of the next element. May be -1 if the next element has identical values for acceleration, deceleration, and velocity. dAccel LREAL 100 Maximum allowable acceleration (in path units/sec²) dDecel LREAL 100 Maximum allowable deceleration (in path units/sec²) dLength LREAL 0 Length of object in path units wInternMark2 WORD 0 Intern marks for tool correction, rounding, etc. byInternMark BYTE 0 Start and end of path preprocessing actions: Bit 0 set: Stop tool radius correction after this object Bit 1 set: Start tool radius correction to the left of this object Bit 2 set: Start tool radius correction to the right of this object Bit 3 set: Stop path rounding/smoothing after this object Bit 4 set: Start path smoothing at this object Bit 5 set: Start path rounding at this object Bit 6 set: Stop avoiding loops after this object Bit 7 set: Start avoiding loops at this object dwFeatureFlags DWORD If TRUE , the object is a 3D-object b3DMode BOOL FALSE Stores feature bits set by G38/G39 dHelpPos ARRAY [0..MAX_IPOSWITCHES] OF LREAL Relative position of auxiliary switches (0: object start, 1: object end, similar to G-code: O) iHelpID ARRAY [0..MAX_IPOSWITCHES] OF INT ID (G-code: H) of auxiliary switches. If the current object is of type MCOMMAND , iHelpID[0] will contain the number of the M-option. adVelAddAx ARRAY [0..7] OF LREAL If value <> 0 , then it specifies the velocity values for following use: [0] : all G0 commands [1] : Z-axis [2] : P-axis [3] : Q-axis [4] : U-axis/A-axis [5] : V-axis/B-axis [6] : W-axis/C-axis [1] - [6] : These are maximum values used of SMC_ExtendedVelocityChecks . adAccAddAx ARRAY [0..7] OF LREAL adDecAddAx ARRAY [0..7] OF LREAL aAdditionalParams ARRAY [0..(SMC_MAX_ADDITIONAL_PARAMS - 1)] OF LREAL Additional parameters set by G38 I/J/K adToolLength ARRAY [0..2] OF LREAL Parameters for tool length compensation (set by G43 I/J/K) dPrecision LREAL The precision of the G-Code, see input dPrecision of SMC_NCInterpreter.

SMC_GWord (STRUCT) ¶ TYPE SMC_GWord : STRUCT This data type represents the data of one G-code word like ‘N20’ or ‘G1’. It replaces the older structure SMC_GCODE_WORD , which is kept only for compatibility. InOut: Name Type Comment strAddress STRING(2) The address of the G-Code word. E.g. ‘G’, ‘N’, ‘EF’. nNumExpTokens UDINT The number of expression-tokens ( SMC_GExpression_Token ) needed to evaluate the value of the GWord. This can be a simple literal, a variable access, or a composite expression like (a + b). The type of the expression ; lenAddData UDINT The number of bytes of additional data stored for all expression-tokens in sum. This is a redundant value that is used to make iteration more efficient. pos SMC_NC_SourcePosition The source position of the g-word.

SMC_INT_STATUS (ENUM) ¶ TYPE SMC_INT_STATUS : Status of an interpolator instance. InOut: Name Initial Comment IPO_UNKNOWN 0 Internal state that may not occur after a complete pass of the SMC_Interpolator . IPO_INIT 1 Initialization state; movement not started yet IPO_ACCEL 2 Interpolation ongoing; currently accelerating IPO_CONSTANT 3 Interpolation ongoing with constant velocity IPO_DECEL 4 Interpolation ongoing; currently decelerating IPO_FINISHED 5 Interpolation done IPO_WAIT 6 Interpolation ongoing; currently waiting for example by a stop input or a M-command IPO_INCREASING_ACCEL 7 Interpolation ongoing; currently building up the acceleration IPO_DECREASING_ACCEL 8 Interpolation ongoing; currently ramping down the acceleration IPO_INCREASING_DECEL 9 Interpolation ongoing; currently building up the deceleration IPO_DECREASING_DECEL 10 Interpolation ongoing; currently ramping down the deceleration

SMC_ReadNCFile (FB) ¶ FUNCTION_BLOCK SMC_ReadNCFile SMC_ReadNCFile can read a NC-ASCII-file from the file system of the controller in order to make it available for the SMC_NCDecoder . Thus, a NC program can be read in and decoded at runtime. Note This function block has been superseeded by SMC_ReadNCFile2 and is kept only for compatibility. It is recommended to use SMC_ReadNCFile2 , which has additional features like mathematical expressions or sub programs in g-code InOut: Scope Name Type Initial Comment Input bExecute BOOL Rising edge: Starts execution. While TRUE , the function block is active. sFileName STRING(255) ‘’ File path pvl POINTER TO SMC_VARLIST If there aren’t variables in the CNC programm, this input isn’t set. SMC_VARLIST pBuffer POINTER TO BYTE Pointer on a sufficiently large, free data area (buffer) that is allocated in the IEC application. It is strongly recommended to allocate the buffer as ARRAY[0..x] OF |ioSMC_GCODE_WORD| in order to make sure to have a correct data alignment. A definition of ARRAY[0..x] OF BYTE may lead to a misaligned data access on some platforms. dwBufferSize DWORD Size of the buffer in byte fDefaultVel LREAL Default velocity; used if velocity is not specified inside the CNC file. fDefaultAccel LREAL Default acceleration; used if acceleration is not specified inside the CNC file fDefaultDecel LREAL Default deceleration used if deceleration is not specified inside the CNC file fDefaultVelFF LREAL Default velocity for fast forward (G0), FF word. It is used if no velocity is specified inside the CNC file. fDefaultAccelFF LREAL Default acceleration for fast forward (G0), EF+ word. It is used if no acceleration is specified inside the CNC file. fDefaultDecelFF LREAL Default deceleration for fast forward (G0), EF- word. A non- negative value is expected used if no deceleration is specified inside the CNC file. b3DMode BOOL If TRUE , a G17 command (activation 3D-mode) is executed implicitly. pStringBuffer POINTER TO SMC_StringBuffer Pointer to an object of type SMC_StringBuffer . This object is used to store strings that are defined in the G-code program in order to write them to variables using G36&37. If the pointer is not set (0) and string constants are used in the G-code program, an error will be generated.( SMC_RNCF_NO_STRINGBUFFER ). bEnableSyntaxChecks BOOL Turns on syntax checks that will detect invalid G-code and stop with an error in this case Output bDone BOOL TRUE if parameter is available bBusy BOOL TRUE while execution of function block is not finished bError BOOL TRUE signals that an error has occurred within the function block. ErrorID SMC_ERROR Error identification, SMC_ERROR bExecuteDecoder BOOL Signal for triggering the input Execute of the SMC_NCDecoder module. ncprog SMC_CNC_REF STRUCT(nElements := 0) CNC program, input of the succeeding SMC_NCDecoder module. dwFileSize DWORD Size of the file in bytes. dwPos DWORD Current Position of the cursor in the file.

Stream ¶ SMC_FileStream2 (FunctionBlock) EOS (Property) Name (Property) Open (Method) ReadPosInBytes (Property) SizeInBytes (Property) SMC_ITextStream (Interface) Close (Method) EOS (Property) Name (Property) Read (Method) Reset (Method) SMC_StringStream2 (FunctionBlock) AppendData (Method) Close (Method) EOS (Property) Init (Method) Name (Property) SetEndOfData (Method)

Token ¶ SMC_NCTokenizer (FunctionBlock) DoBeforeLeave (Action) ProceedToNextToken (Action) ResetOutputs (Action) SetDelimiters (Method) SMC_ReadNCTokens (FunctionBlock) Append3dMode (Action) AppendDynamics (Action) DoBeforeLeave (Action) IncreaseNumElems (Action) StepSuppress (Action) SMC_Token (FunctionBlock) GetNumber (Method) GetString (Method) SetNumber (Method) SetString (Method) SMC_TokenQueue (FunctionBlock) Append (Method) Capacity (Method) EndOfData (Method) Full (Method) GetFirst (Method) GetFromEnd (Method) GetFromStart (Method) Init (Method) IsEmpty (Method) NumElems (Method) RemoveAll (Method) RemoveFirst (Method) RemoveLast (Method) SetEndOfData (Method) SetPointer (Method) SpaceLeft (Method) TokenScanner Helpers SMC_Char_IsDigit (Function) SMC_Char_IsHexDigit (Function) SMC_Char_IsLetter (Function) SMC_NCScanner_DelimConfig (Struct)