1650 HEIDENHAIN Technical Manual MANUALplus 620
Module 9458 Unload a column description
Module 9458 removes the description of one or more columns from the
cache. The column is specified by its qualified name in the form table.column.
If a wildcard '*' is given as the column (i.e. a qualified name in the form
table.*), the description of all columns of the given table is unloaded. In order
to save memory, descriptions should be unloaded if they are no longer used.
They must be unloaded, if a different table file is used with the same table
name.
Constraints:
The module can only be executed within a submit job.
Possible errors:
The column given to the module was not found in the cache
Call:
PS B/W/D/K <String address with the qualified column name>
CM 9458
PL B/W/D <Error number>
For the meaning of the error number, see "Return codes of
PLC Modules 9440 to 9459 (error stack)" on page 1652.
Error recognition:
Marker Value Meaning
NN_GenApiModule
Error
0 Description was successfully unloaded
1 Error. See <Error number>
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