ISaGRAF. Version 3.4

         

access to fields of str_arg


/* function block interface - name: sample */

/* standard ISaGRAF data types */

typedef                                                 long       T_BOO;

typedef                                                 long       T_ANA;

typedef                                                 float       T_REAL;

typedef                                                 long       T_TMR;

typedef                                                 char        *T_MSG;

/* structure of calling parameters */

typedef struct {

             /* CALL   */                            T_BOO  _par1;

             /* CALL   */                            T_BOO  _par2;

} str_arg;

/* access to fields of str_arg structure */

#define                                                  PAR1     (arg->_par1)

#define                                                  PAR2     (arg->_par2)

/* return parameter logical numbers */

#define                                                  FBLPNO_Q1        0

#define                                                  FBLPNO_Q2        1

/* êîíåö ôàéëà*/

Íèæå ïðåäñòàâëåíî ñîîòâåòñòâèå ìåæäó òèïàìè ISaGRAF è “C”. Òèïû ISaGRAF îïðåäåëåíû êàê òèïû “C” â ôàéëå îïðåäåëåíèÿ ôóíêöèîíàëüíîãî áëîêà:























































boolean



T_BOO



long (32 áèòà)



analog



T_ANA



long



real



T_REAL



float (32 áèòà, ïëàâàþùåå çíà÷åíèå ñ îäèíî÷íîé òî÷íîñòüþ)



timer



T_TMR



long



message



T_MSG



char* (32 áèòíûé óêàçàòåëü)



Êàæäîå ïîëå ñòðóêòóðû “str_srg” ñîîòâåòñòâóåò îäíîìó ïàðàìåòðó ôóíêöèîíàëüíîãî áëîêà.  Ïàðàìåòðû âûçîâà â ñòðóêòóðå â òîì æå ïîðÿäêå, â êîòîðîì îíè áûëè óñòàíîâëåíû â îïðåäåëåíèè ôóíêöèîíàëüíîãî áëîêà. Èäåíòèôèêàòîð, íàïèñàííûé çàãëàâíûìè áóêâàìè, îïðåäåëÿåòñÿ äëÿ òîãî, ÷òîáû èìåòü ïðÿìîé äîñòóï ê ïàðàìåòðàì ñòðóêòóðû ïåðåäàþùåéñÿ â “C” ðåàëèçàöèþ ñëóæáû àêòèâèçàöèè ôóíêöèîíàëüíîãî áëîêà. Èìåíà èäåíòèôèêàòîðîâ ââîäÿòñÿ âî âðåìÿ îïðåäåëåíèÿ ôóíêöèè â ìåíåäæåðå áèáëèîòåê ISaGRAF.


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