How to check the CPU Firmware version of M580 PLC?


11 March 2022

There are multiple ways to find out the FW (Firmware) version of the M580 CPU. The simplest way is to read it off the hardware itself, however, if the FW was updated at some stage, the printed information would not correspond to the actual FW inside.
In that situation, the following 2 methods can be used:
1. Connect to the PLC via Unity Loader and it will provide that information.
2. Connect to the CPU via Control Expert, and double click on the CPU inside the rack configuration. Then go to the Animation tab and click on the Information tab. This will provide you information on the PLC you are connected to including it's processor version.