SMC_NCInterpreter (FB)

The input queue of g-code sentences

Execution starts on the rising edge.

If TRUE, the current processing of this function block is aborted

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.

Start position of the path.

Start tool length.

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).

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.

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.

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.

Allows to supply a buffer for the interpreter stack. If 0, a default buffer of size 10240 Bytes is used. If <> 0, the given buffer will be used. This input is read each cycle.

The size of the buffer pointed to by pInterpreterStack. Note that the size needs to be at least 1024 Bytes.

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.

TRUE, while execution of function block is not finished.

Signals that an error has occurred within the function block.

Error identification

The source-position where an error has been detected.

Pointer to the SMC_OUTQUEUE structure that manages the decoded SMC_GEOINFO objects.

The current status.

The variable contains the 0-based line number of the CNC file.

The G-Code text.