CNC_RDPROGLINE2 | PROGRAM

Reads the NC program by line basis.

This function cannot be used to MDI program.

This function tries to read the amount of lines which is specified by (*line_len), but when the actual read character size reaches to the number of (*data_len) in this function, the reading process is aborted.
And if the end character of the last line (EOB('\n')) is not finished to read, the last line is not counted as the read line count.

Example)
When you read from 1st to 3rd line of the following program, you have to specify more than 33 as the read character size. If you specify 30 as the character size, the read line count would be 2 because the 3rd line had not been read completely. Then 30 characters would be set in the specified buffer.

O1234 ;
N001 G01 X0. F100 ;
N002 X20. ;
N003 X50. ;
N004 X80. ;
N005 M30 ;
%

The conditions of the function about CNC mode and the kind of program are as follows.

This function works normally if OP signal is 1 but STL signal is 0 (for example, feed hold stopping, single block stopping, etc).

When you use this function for the MDI program or the selected program in the following situations, the execution pointer goes to the top of the specified line by line_no.

In this function, the execution pointer never moves like cnc_rdprogline.