Issue
Older firmware of the Micom Px4x relay doesn't have cyber security standard IEC62351.

Product Line
Micom Px4x relays

Environment
Cyber security

Cause
Only hardware versions with part numbers corresponding to L and M support new cybersecurity standards

Resolution

• Cyber security only runs on CPU3/XCPU3 which corresponds to hardware "L" for Micom 40 TE or "M" for Micom 60 and 80 TE.
• An older version of the relay would have to be replaced with a new main board embedded in the front panel.
• A new ethernet board, designed for cyber security + IEC61850 ed 2 +HSR/PRP would also need to be implemented in the relay.
• Finally, the software version(Firmware) with Cyber security would have to be flashed on the relay.

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