Rockwell-automation 1771-DMC_DMC1_DMC4_DXPS Control Coprocessor User M Instrukcja Użytkownika Pobierz pdf (Strona 176)

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Appendix B



B-45

Returns the number of data definitions that can be added to the DTL

data-definition table.

C Syntax

#include <copro.h>

unsigned DTL_DEF_AVAIL (num_avail)

unsigned *num_avail;

Parameters

num_avail

Contains the number of data definitions remaining in the

data-definition table.

Description

Use the DTL_DEF_AVAIL function to determine the number of data

definitions available in the calling task’s table of data definitions. The

function calculates the difference between the number of entries defined by

DTL_INIT and the number of successful data definitions made using

DTL_C_DEFINE and returns the results in the num_avail parameter.

Returns

Status Symbolic Name Meaning

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C Example

unsigned status;

unsigned num_avail;

status = DTL_DEF_AVAIL (&num_avail);

printf (“%d definitions available\n”,num_avail);

DTL_DEF_AVAIL

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