1684 HEIDENHAIN Technical Manual iTNC 530 HSCI
9.2 Conditional Compilation
Depending on the machine parameters, a PLC program can be conditionally
compiled on the iTNC. This allows you to select and deselect machine options
by entering the options in machine parameters. Therefore, only one PLC
program is necessary for all variants of machine options.
You use the PLC configuration file *.cfg also to influence the memory
allocation of the control and change the configuration data of the PLC. Enter
certain keywords to perform changes. After compilation by the PLC, the NC
detects the changed settings, and the control must be restarted.
The values you enter may only be greater than the default values.
Available keywords:
Keyword Description Example
DEFINE Configuration definitions for controlling the
conditional compilation, soft-key menu
generation and cycle-project configuration
REMBYTEMIN Start address of the bytes, words or double
words whose data remains stored after a
power interruption (remanence).
Default value: 0
REMBYTEMIN = 0
REMBYTEMAX End address of the bytes, words or double
words whose data remains stored after a
power interruption (remanence).
The range defined by REMBYTEMIN and
REMBYTEMAX may not be larger than 1024
bytes.
Default value: –1 = Deactivated
REMBYTEMAX = 200
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