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Inout
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ncprog
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SMC_CNC_REF
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This variable holds the CNC program. The program may have been created by the IEC-program or within the CNC-Editor.
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Input
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bExecute
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BOOL
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Execution starts on the rising edge.
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bAbort
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BOOL
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If TRUE, the current processing of this function block is aborted
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bAppend
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BOOL
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If TRUE, a rising edge of bExecute won't lead to a reset of the out-queue. Instead, newly incoming data will be written to the end of the out-queue.
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bStepSuppress
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BOOL
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When this input is TRUE, lines of the CNC program starting with ‚/’ will be ignored. Otherwise they will be processed.
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piStartPosition
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SMC_POSINFO
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Start position of the path.
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vStartToolLength
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SMC_Vector3d
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Start tool length.
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nSizeOutQueue
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UDINT
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This variable contains the size of the data buffer, the list of SMC_GEOINFO structure objects will be written to. This buffer must be able to hold at least five SMC_GEOINFO objects. Otherwise, the function block will not execute any actions at all. Its size may be predefined, but may be modified later only during a reset. It is recommended to create the buffer as described by the example below:
ExampleBuf: Array[1..50] of SMC_GeoInfo;
The appropriate buffer size will then be retrieved by use of the operator sizeof(ExampleBuf).
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pbyBufferOutQueue
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POINTER TO ARRAY [0..0] OF SMC_GEOINFO
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This input must point to the first byte of the memory area that is allocated for the SMC_OUTQUEUE structure. This area must be at least as big as defined in nSizeOutQueue. Typically the allocation of the memory buffer is done in the declaration part of the IEC-program by defining an array of SMC_GEOINFO (e.g. BUF: ARRAY[1..50] OF SMC_GEOINFO; for a buffer that can store 50 path elements). The value may be predefined, but may be modified later on only during a reset.
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bEnableSyntaxChecks
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BOOL
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Turns on syntax checks that will detect invalid G-code and stop with an error in this case. It is recommended to use the syntax checks.
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eOriConv
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SMC_ORI_CONVENTION
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SMC_ORI_CONVENTION.ADDAXES
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Defines the way the orientation in the A/B/C words is interpreted.
For movement commands (such as G01, G02, ...), the value determines how A/B/C are treated. For values other than SMC_ORI_CONVENTION.``ADDAXES``, the angles A/B/C may be normalized, even if no coordinate rotation has been programmed. For example with orientation convention ZYZ, a programmed orientation of A=90° B=0° C=0° may result in the (equivalent) rotation A=0° B=0° C=90° in the path element.
For commands that set the decoder coordinate system (G54/G55/G56), the value determines how the coordinates A/B/C are treated. If the value is SMC_ORI_CONVENTION.``ADDAXES``, then A/B/C are treated as independent additional axes, for which offsets are set. For all other values, A/B/C are treated as an orientation, and the decoder coordinate system is rotated accordingly.
Note
If used with tool correction functions such as SMC_ToolLengthCorr, the same orientation convention has to be used there.
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dCircleTolerance
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LREAL
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Tolerance to decide whether the definition of a circle makes sense.
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-
case definition via target-position and radius: If the distance between start- and end-position (both projected onto the circle plane) is greater than 2 * the radius + MAX(fCircleTolerance, 1e-06), the circle will be converted into a line.
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case definition via target- and center-position: Let x be the maximum of the distance between start- and center-position and the distance between target- and center-position (projecting everything onto the circle plane). If those distances differ by more than MAX(fCircleTolerance, 0.1 * x), the circle will be converted into a line.
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Output
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bDone
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BOOL
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This variable will be set to TRUE as soon as the input data has been processed completely. The function block will not perform any further actions until it gets reset.
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bBusy
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BOOL
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TRUE, while execution of function block is not finished.
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bError
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BOOL
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Signals that an error has occurred within the function block.
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wErrorID
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SMC_ERROR
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Error identification
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poqDataOut
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POINTER TO SMC_OUTQUEUE
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Pointer to the SMC_OUTQUEUE structure that manages the decoded SMC_GEOINFO objects.
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iStatus
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SMC_DEC_STATUS
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The current status.
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iLineNumberDecoded
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DINT
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The variable contains the 0-based line number of the CNC file.
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GCodeText
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SMC_GCODE_TEXT
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The G-Code text.
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