Are M580 data of unlocated and located variable saved in persistent memory in every scan cycle.

How can we help you today?

How M580 data of unlocated and located variable saved in persistent memory in every scan cycle.

Save the CPU project in the flash memory (and the memory card if inserted):

Automatically after an online modification is performed in the application RAM
Automatically after a download
Automatically on detection of %S66 system bit rising edge
Manually with a Unity Pro command: PLC → Project Backup → Backup Save

NOTE: Backup begins after the completion of the current MAST cycle and before the start of the next MAST cycle.
If MAST is configured as periodic, set the MAST period to a value larger than the actual MAST execution time. This lets the processor complete an entire backup without interruption.
If the MAST period is set to a value less than the actual MAST execution time, backup processing is fragmented and requires a longer time to finish.