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 realized at runtime.
InOut:
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Scope |
Name |
Type |
Initial |
Comment |
|
Input |
bExecute |
BOOL |
Rising edge: Starts execution. While TRUE, the function block is active. |
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sFileName |
STRING(255) |
'' |
File path |
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pvl |
POINTER TO SMC_VARLIST |
If there aren't variables in the CNC programm, this input isn't set. SMC_VARLIST |
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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. |
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dwBufferSize |
DWORD |
Size of the buffer in byte |
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fDefaultVel |
LREAL |
Default velocity; used if velocity is not specified inside the CNC file. |
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fDefaultAccel |
LREAL |
Default acceleration; used if acceleration is not specified inside the CNC file |
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fDefaultDecel |
LREAL |
Default deceleration used if deceleration is not specified inside the CNC file |
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fDefaultVelFF |
LREAL |
Default velocity for fast forward (G0), FF word. It is used if no velocity is specified inside the CNC file. |
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fDefaultAccelFF |
LREAL |
Default acceleration for fast forward (G0), EF+ word. It is used if no acceleration is specified inside the CNC file. |
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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. |
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b3DMode |
BOOL |
If TRUE, a G17 command (activation 3D-mode) is executed implicitly. |
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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). |
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bEnableSyntaxChecks |
BOOL |
Turns on syntax checks that will detect invalid G-code and stop with an error in this case |
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Output |
bDone |
BOOL |
TRUE if parameter is available |
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bBusy |
BOOL |
TRUE while execution of function block is not finished |
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bError |
BOOL |
TRUE signals that an error has occurred within the function block. |
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ErrorID |
SMC_ERROR |
Error identification, SMC_ERROR |
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bExecuteDecoder |
BOOL |
Signal for triggering the input Execute of the SMC_NCDecoder module. |
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ncprog |
STRUCT(nElements := 0) |
CNC program, input of the succeeding SMC_NCDecoder module. |
