Create a new wld-file in your project engineering tool with ‘File
è Memory Card file è New
’ and rename it to "protect.wld". Transfer
the according blocks into the file by dragging them with the mouse
from the project to the file window of protect.wld.
Transfer the file protect.wld to a MMC storage module, plug the MMC
into the CPU and execute an overall reset with the following
approach:
The overall reset stores the blocks in protect.wld permanently in the
CPU protected from accesses of 3. persons.
Protected blocks are overwritten by a new protect.wld. Using a PG 3.
persons may access protected blocks but only the block header is
transferred to the PG. The block code that is to be protected remains
in the CPU and cannot be read.
Protected blocks in the RAM of the CPU may be substituted at any
time by blocks with the same name. This change remains up to next
overall reset. Protected blocks may permanently be overwritten only if
these are deleted at the protect.wld before. By transferring an empty
protect.wld from the MMC you may delete all protected blocks in the
CPU.
Protect blocks with pro-
tect.wld
Transfer protect.wld to
CPU with overall reset
Protection behavior
Change respectively
delete protected blocks
VIPA System 300SDeployment CPU 313-6CF13
Extended know-how protection
HB140 | CPU-SC | 313-6CF13 | GB | 15-50 76
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