GFREEZE Statement in SFC Action

Freezes a child Sequential Function Chart (SFC) (program or function block); suspends its execution. The suspended SFC program organization unit (POU) can then be restarted using the GRST statement.
Children of the child program are automatically frozen along with the specified program.
GFREEZE is not part of the IEC 61131-3 standard.
GFREEZE Statement
Name:
GFREEZE
Syntax
GFREEZE
 (
<child_name>
 );
where
child_name
 represents the name of the SFC child POU
Operands
the specified SFC program must be a child of the one in which the statement is written
Return value:
(none)
To insert a GFREEZE statement
  • In the language container, type
    GFREEZE
    .
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