The importance is that the processor won't work without flashing the firmware to the revision level you need. Typically all processors ship with firmware level 1.
The importance is that the processor won't work without flashing the firmware to the revision level you need. Typically all processors ship with firmware level 1.
They all ship ready to run, upgrades are designed for hardware and software compatibility. With controllogix it can be either, some SLC500's and Micrologix need firmware upgrades for hardware.