We have multiple ACX F 2152 deployed across the country and have had a couple instances where the processor somehow was wiped internally.
Is there a function block that we could use that will write a copy of the entire internal program to the external SD card?
If there is an SD card inserted in the SD card slot, and if the SD slot is activated, then the entire internal program will already be stored on the external SD card. If the intention is to create an archived copy of the application on the same SD card then that might be possible, but depending on how the device was wiped this backup will also probably be deleted along with the main application. And, recovering this backup would involve connecting to the device with a PC, in which case it would also be possible to restore the application from a backup on the PC.