Siemens sinumerik 840D sl Function Manual

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Detailed description2.2 Curve tablesSpecial functions: Axis Couplings and ESR (M3)28 Function Manual, 11/2006, 6FC5397-2BP10-2BA0Insufficient memoryIf a curve table cannot be created, because sufficient memory is not available, then thenewly created table is deleted immediately after the alarm.If insufficient is available, then one or more table(s) that is/are no longer required can bedeleted with CTABDEL or, alternatively, memory can be reconfigured via machine data.Temporary curve tableWhen a curve table is created, a temporary curve table is set up first in memory, which isthen extended block by block. Finally (CTABEND), the table is checked for consistency. Thetemporary table is converted to a table that can be used in a coupling only if it is found to beconsistent.Same table numberA new curve table may have the same number as an existing table. The new curve tablethen overwrites the existing table with the same number. This is done only if the new curvetable does not contain any errors. If an error is detected in the new table, the old table is notoverwritten.If the user wishes to have the option of overwriting an existing curve table without deleting itfirst, then he will need to dimension the table memory so that there is always enough extramemory to accomodate the table to be overwritten.Overwriting curve tablesCurve tables that are not active in a master value coupling and are locked with CTABLOCK()may be overwritten.Deleting curve tablesCurve tables that are not active in a master value coupling and are locked with CTABLOCK()may be overwritten.