If it is configured as a mains sensor, the system always starts from L1, the phase on which the Multi is located.
However, if you configure the Et112 as PV, the system does not care because it is calculated and displayed as PV.
Not grid … but as PV
you make the setting in the console under the Et112 … and where it is connected … AC in or AC out
The ET112 is not completely useless … you can only use it as a single-phase meter on L1 … PV or grid . The system always assumes that the meter is on L1 … the phase of the multiphase … is used.
The meter counts everything correctly … but the system always includes its values in the calculation of L1 … which is why the PV yield also has the addition ‘L1’
If you have connected it to L2, the Et112 does not work for the correct calculation
But this is also how it is described in the illustrated instructions … ALWAYS ON L1 AND THE PHASE OF THE MULTIS … this is not an error on the part of Victron but an incorrect use on the part of the customer … I use a 3-phase EM24, ET340 … here you can choose the phases …