CNC_RDPOSITION | POSITION

Description

Declaration

Arguments

typedef struct odbpos {
    POSELM  abs;    /* absolute position */
    POSELM  mach;   /* machine position  */
    POSELM  rel;    /* relative position */
    POSELM  dist;   /* distance to go    */
} ODBPOS ;

typedef struct poselm {
    long    data;   /* position data */
    short   dec;    /* place of decimal point of position
                       data */
    short   unit;   /* unit of position data */
    short   disp;   /* status of display */
    char    name;   /* axis name */
    char    suff;   /* subscript of axis name */
} POSELM;

Return

EW_OK is returned on successful completion, otherwise any value except EW_OK is returned.

The major error codes are as follows.

As for the other return codes or the details, see "Return status of Data window function"

CNC option

For HSSB connection,

The extended driver/library function is necessary.

For Ethernet connection,

The Ethernet function and the extended driver/library function are necessary.

However, in case of Series 16i/18i/21i-B, 0i-B/C/D/F, Series 30i and PMi-A, the required CNC option is as follows.

When Embedded Ethernet is used,

above two optional functions are not required.

When Ethernet board is used,

only Ethernet function is required.

CNC parameter

This function is not related to CNC parameter.

CNC mode

This function can be used in any CNC mode.

Available CNC

Note) 0i-C does not support the HSSB function.

Example(C Language)

 
The following program reads the absolute position data of all axis,
and displays them.

#include "fwlib32.h"

void example( void )
{
    ODBPOS pos[MAX_AXIS];
    short num = MAX_AXIS;
    short ret = cnc_rdposition(h, 0, &num, pos);
    if(!ret) {
        int i;
        for(i = 0 ; i < num ; i++) {
            printf("%c = %d\n", pos[i].abs.name, pos[i].abs.data);
        }
    }
}
 

Example(C#)

The following program reads the absolute position data of all axis,
and displays them.

class example
{
    public void sample()
    {
        Focas1.POSELMALL pos = new Focas1.POSELMALL();
        short num = Focas1.MAX_AXIS;

        byte[] bytes = new byte[Marshal.SizeOf(pos) * Focas1.MAX_AXIS];
        IntPtr ptrWork = Marshal.AllocCoTaskMem(Marshal.SizeOf(pos));

        short ret = Focas1.cnc_rdposition(h, 0, ref num, bytes);
        if (ret == Focas1.EW_OK)
        {
            int i;
            for (i = 0; i < num; i++)
            {
                Marshal.Copy(bytes, i * Marshal.SizeOf(pos), ptrWork, Marshal.SizeOf(pos));
                Marshal.PtrToStructure(ptrWork, pos);
                Console.WriteLine("{0} = {1}", pos.abs.name, pos.abs.data);
            }
        }
        Marshal.FreeCoTaskMem(ptrWork);
    }
}