Has anyone had any luck talking to the iec1107 port on the liberty secure 100 smart meter? In theory, it should respond to 2f 3f 21 0d 0a sent at 300 baud with 7E1, however my smartmeter does not respond to the handshake. Has anyone been able to talk to their smart meter using the optical port? Or has it been disabled? I understand that some smartmeter manufactures disable the port once the meter has been configured.
(My preference would be to use the CAD built into my IHD but unfortunately so far we have had no luck finding out how to query it.)
Best answer by Blastoise186
As far as I’m aware, the Optical ports are always disabled in the field for security reasons. I think they might sometimes be enabled temporarily prior to and during the install, but are always disabled during that process. This is the same regardless of manufacturer.
As for getting the CAD and IHD working, you’ll need to get OVO to Pair your IHD up to the HAN in order to authorise it to connect. When the process is done correctly, the handshake will succeed and the meter will respond appropriately. Only then can the CAD be used at all.