USER MANUAL APS 6.0

Protection
8–17
Depending on the form of protection, one of the following prompts is displayed:
• Enter list of files to apply memory module
overwrite protection
• Enter list of files to remove memory module
overwrite protection
Memory Module Program Compare Protection
(SLC 5/03 and SLC 5/04 Processors)
If bit S:2/9 is set inside a valid program that is contained in a memory module, you
cannot modify the NVRAM (processor) user program file. This includes online
editing, program downloading, and clear memory commands. Use this feature to
prevent a programming device from altering the NVRAM program from the
program contained in the memory module. If a memory module is installed with
this bit set, and a different NVRAM user program is contained in NVRAM, the
processor does not enter the RUN or REM Run mode. Y ou must transfer the
memory module program to NVRAM in order to enter the RUN or REM Run mode.
To enable this feature, set bit S:2/9 in NVRAM using the data monitor function,
then transfer the program to the memory module.
Memory Module Write Protection
(SLC 5/03 and SLC 5/04 Processors)
Memory module write protection (when selected) allows you to permanently
program the memory module. This option is similar to UVPROM functionality.
Once a memory module is programmed with write protection, you can no longer
write to it using an SLC 5/03 or SLC 5/04 processor.
To enable memory module protection select [F8], Write Protect when transferring
your user program to the memory module. Select [F10], Allow Reuse when
transferring your user program to the memory module to allow future
re-programming. This option is similar to EEPROM functionality.