PTMAP_get_eu_info
This subroutine accesses the point data type, the engineering units label, and a pointer to the conversion expression.
Syntax
int PTMAP_get_eu_info (point_id, expr_ptr, eu_label,
eu_type, retstat)
char *point_id;
char **expr_ptr;
char *eu_label;
PTM_DATA_TYPE *eu_type;
COR_STATUS *retstat;
Input Arguments
point_id | Point identifier. |
Output Arguments
expr_ptr | Pointer to a translated expression in a database. (Space neither has to be allocated or deallocated.) |
eu_label | The configured engineering units label. |
eu_type | Data type of input value. |
Retstat | Pointer to status structure. The following errors may be returned (see Appendix A for an explanation of this code): |
PTMAP_INVAL_POINT_ID | |
PTMAP_HAS_NOT_EU_CONV |
Return Value
The contents of retstat.status .