Rockwell-automation 1771-DMC_DMC1_DMC4_DXPS Control Coprocessor User M Manuale Utente Pagina 250

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Appendix B

B-119
Removes a TAG or TAGs from the TAG table defined by any
calling process.
C Syntax
#include <copro.h>
unsigned TAG_GLOBAL_UNDEF (tag)
unsigned tag;
or
char *tag;
Parameters
tag
Use to access the TAG table. This can be either the symbolic TAG or
the handle returned from a TAG_LINK or TAG_DEFINE call. A value
of CC_ALLTAGS (defined in COPRO.H) will remove all TAGs defined
in the TAG table.
Returns
Value Symbolic Name Meaning
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Description
Use the TAG_UNDEF function to remove a TAG or TAGs from the
TAG table.
C Example
unsigned status;
status = TAG_GLOBAL_UNDEF (“Fred”);
TAG_GLOBAL_UNDEF
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