Unique card number Opta

Official Hardware Opta
1

Hello everyone,
I have a series of Opta PLCs that read data from various photovoltaic installations and I need to uniquely identify the OPTA hardware that is sending me its data.
Is there a way to access your unique card number?

2

Hello @crc57 ,

The following tutorial shows how to retrieve the MAC address of an Opta™:

Best,