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Specify the library handle. See "Library handle" for details.

Specify the setting data number.
See the "PARAMETER MANUAL" of CNC about available setting data number. It can be got by cnc_rdparanum function and cnc_rdparainfo function.

Specify the axis number.

Specify the data block length(size of IODBPSD structure).

4+(byte size of setting data)*(number of axis)

In case that the size of setting data is 4 byte, the IODBPSD structure is as follows. In case that its size is 1, 2, or 8 byte, the size of data part per 1 setting data or 1 axis is 1, 2, or 8 byte.

IODBPSD

no axis/1 axis	all axes

• Series 15/15i, 30i, 0i-D/F, PMi-A

n = Maximum controlled axes

• Series 16/18/21, 16i/18i/21i, 0i-A/B/C, Power Mate i

n = Current controlled axes

In case of Series 15i, 16/18/21, 16i/18i/21i, 0i, 30i, Power Mate i and PMi-A, the spindle setting data has an axis attribute, and the data for number of spindle are valid.

Pointer to the IODBPSD structure including the setting data. The IODBPSD structure is as follows.

Series 15, 16/18/21, 16i/18i/21i, 0i-A/B and Power Mate i

typedef struct  iodbpsd {
   short datano;              /* setting data number */
   short type;                /* upper byte:type */
                              /* lower byte:axis */
   union {
      char  cdata;            /* bit/byte setting data */
      short idata;            /* word setting data */
      long  ldata;            /* 2-word setting data */
      char  cdatas[MAX_AXIS]; /* bit/byte set. data with axis*/
      short idatas[MAX_AXIS]; /* word setting data with axis */
      long  ldatas[MAX_AXIS]; /* 2-word set. data with axis */
   } u ;
} IODBPSD ;               /* MAX_AXIS : max. controlled axes */

Series 15i, 30i, 0i-D/F, PMi-A and Ethernet connection

typedef struct realprm {     /* real setteing data */
   long prm_val;             /* value of variable */
   long dec_val;             /* number of places of decimals */
} REALPRM;

typedef struct  iodbpsd {
   short datano;               /* setting data number */
   short type;                 /* upper byte:type */
                               /* lower byte:axis */
   union {
      char    cdata;           /* bit/byte setting data */
      short   idata;           /* word setting data */
      long    ldata;           /* 2-word setting data */
      REALPRM rdata;           /* real setting data */
      char    cdatas[MAX_AXIS];/*bit/byte set. data with axis*/
      short   idatas[MAX_AXIS];/* word set. data with axis */
      long    ldatas[MAX_AXIS];/* 2-word set. data with axis */
      REALPRM rdatas[MAX_AXIS];/* real set. data with axis */
   } u;
} IODBPSD ;               /* MAX_AXIS : max. controlled axes */

datano

Setting data number which was read is stored.

type

Attribute of setting data which was read is stored.

Upper byte:type(only Series 15/15i)

0	:	bit type
1	:	byte type
2	:	word type
3	:	2-word type
4	:	real type (only Series 15i)

Lower byte:axis

0	:	no axis
1,..,m	:	1 axis(m=max. controlled axes)
ALL_AXES	:	all axes(ALL_AXES=-1)

rdata, rdatas ( Series 15i, 30i, 0i-D/F, PMi-A )

Real setting data is stored.
The value of variable is stored in prm_val, and the number of places of decimals is stored in dec_val.

Real setting data = prm_val * 10 ** (-dec_val)

(Example) When the value of real setting data is 12.345, prm_val and dec_val are read as follows.

prm_val = 12345
dec_val = 3