SMC_ReadNCFile2 (FB)¶

FUNCTION_BLOCK SMC_ReadNCFile2

SMC_ReadNCFile2 can read a NC-ASCII-file from the file system of the controller in order to make it available for the SMC_NCInterpreter. Thus, a NC program can be read in and interpreted at runtime.

InOut:

Scope	Name	Type	Initial	Comment
Input	`bExecute`	`BOOL`		Rising edge: starts execution.
	`sFileName`	`STRING(255)`		File path of the file containing the g-code.
	`pvl`	POINTER TO SMC_VARLIST		The variable list defines a the type and address for each variable that can be used from the g-code. If there aren’t variables in the g-code, this input isn’t used.
	`fDefaultVel`	`LREAL`		Default velocity; used if the velocity (F-word) is not specified inside the CNC file. Note: only applies to the main program, not to subprograms.
	`fDefaultAccel`	`LREAL`		Default acceleration; used if acceleration (E+ word) is not specified inside the CNC file Note: only applies to the main program, not to subprograms.
	`fDefaultDecel`	`LREAL`		Default deceleration (E- word); used if deceleration is not specified inside the CNC file Note: only applies to the main program, not to subprograms.
	`fDefaultVelFF`	`LREAL`		Default velocity for fast forward (G0), FF word. It is used if no velocity is specified inside the CNC file. Note: only applies to the main program, not to subprograms.
	`fDefaultAccelFF`	`LREAL`		Default acceleration for fast forward (G0), EF+ word. It is used if no acceleration is specified inside the CNC file. Note: only applies to the main program, not to subprograms.
	`fDefaultDecelFF`	`LREAL`		Default deceleration for fast forward (G0), EF- word. A non-negative value is expected. It is used if no deceleration is specified inside the CNC file. Note: only applies to the main program, not to subprograms.
	`b3DMode`	`BOOL`	TRUE	If `TRUE`, a G17 command (activation of 3D-mode) is executed implicitly. Note: only applies to the main program, not to subprograms.
	`bStepSuppress`	`BOOL`		When this input is `TRUE`, lines of the CNC program starting with ‚/’ will be ignored. Otherwise they will be processed.
	`aSubProgramDirs`	ARRAY [0..4] OF STRING(174)		An array of up to 5 directories where subprograms are searched. For a subprogram with name “SUB”, the file “sub.cnc” (lower-case) is searched in each of the given directories, starting with directory aSubProgramDirs[0], in ascending order. The first match is used. The first empty directory name ends the search.
	`bParenthesesAsComments`	`BOOL`	TRUE	Usually, parentheses in g-code are treated as multi-line comments. If bParenthesesAsComments is set to FALSE, however, parentheses can be used in the usual ways to group expressions (‘(a+b)c’) and for subprogram calls (‘N10 sub(17)’) in g-code. Multi-line comments can be started with ‘(‘ and end with ‘*)’. Note Regardless of the value of this input, it is always possible to use curly braces ‘{}’ to group expressions and for subprogram calls.
	`bDisableJumpBuffer`	`BOOL`		This input, if `TRUE`, disables an internal jump buffer that is used to improve performance of g-code processing if jumps (G20) are used.
Output	`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
	`errorPos`	SMC_NC_SourcePosition		The source-position where an error has been detected.
	`ErrorProgramName`	`STRING`		The name of the program where an error has been detected
	`sentences`	SMC_GSentenceQueue		The output sentence queue that can be fed into SMC_NCInterpreter.
	`adwFileSize`	ARRAY [0..(NUM_PARSER_CHAINS - 1)] OF DWORD		Size of the file in bytes.
	`adwPos`	ARRAY [0..(NUM_PARSER_CHAINS - 1)] OF DWORD		Current Position of the cursor in the file.