Error ServiceNotSupported for some Actaris ACE6000 and SL7000

Hello,

I have a problem with some Actaris but not all of them,
when I read the clock with the following commands:

7EA01C0002002307327C5FE6E600C0011200080000010000FF0800F8377E

or

7EA01C0002002307544C59E6E600C0012200080000010000FF03009F407E

or

7EA01C0002002307765C5BE6E600C0013200080000010000FF020002287E

I get the following error:

7EA0120700020023527821E6E700D80102A7717E

which translated is:

<ExceptionResponse>
<StateError Value="ServiceNotAllowed" />
<ServiceError Value="ServiceNotSupported" />
</ExceptionResponse>

I do not understand if the clock is not readable for some specific meters and why I can read it in others.

Is there a way for me to get through this specific request without getting an exception?

Thank you very much