For sure, you can select LFP battery, and it works.
But…
I have a 2012 model (MPC2000) and it is impossible to update the firmware (this is documented in the document below) because of the old (2011/2012) processor in the by MPC.
Looking at your photo, the processors has a lablel with 1916137 on it. As you can see in the document below, no assistants en no updates are (anymore) possible.
So, no firmware update, then also, you can´t use any assistants!
So no ESS*.
You can use it as a “dumb” inverter/charger.
It does work with the Cerbo GX / VRM (so a RPI should work too), but you can do basic stuff like change to off/inverter/charger and change the maximum AC current.
Beware that you also can´t connect AC-pv inverter at the AC-out side because you cant activate a pv-assistant.
*if you want to use it stil as a ESS, you have to do all manually. As soon as the AC-pv on AC-in has excess power, you have to enable the charger and set (and constantly change) the charge current.
Because the MPC works on the VRM too (but with somewhat limited functionality), you can set the charge current (when there is solar energy in excess) although this is no supported in the VRM, but you can use a trick…
First, in VEC3, set “enable charger” and set battery “charge current” to its maximum.
Then disconnect your pc (of set it to sleep/standby because as long as VEC3 has contact with the Cerbo / RPI, you can´t use the VRM, the MPC is shown as “off”).
Then use on your mobile phone the VRM app and use the “AC current limit setting” as a “indirect battery current setting”.
E.g.: when the AC-current is set to 5 A (5x230 V=1150W), then the charge current is (1150W/24V=)48 A.
When AC-current is set to 4A (4x230=920W), then the charge current is (920/24=)38 A.
In practice, the current is lower that that, because when you set it to 5 A, the real value is a bit less.
When more or less pv-power is available, you have to change this AC-current limit setting (do know there is a minimum value for AC-current, by me: 3,4 A, so you can not decrease the charging DC current to let say 5 A).
Power assist and the UPS function does also work (on this old model/old firmware).
PS: configuring the MPC via VRM is impossible, because you will get an error saying that this is not supported on this (old) firmware.
PPS: the problem, that no assistants are supported anymore, is that the current VEC3 software does not allow to use those functions. Way back then (in 2012) the VEC3 software did support assistants, with my old/current firmware in the MPC. So I think when you can find a old version of VEC3 (as was available in 2012) I expect that thát version of VEC3 will do support assistants, so ESS too. Tip: use archive.org to obtain old version of VEC3.
