EnergyMeter (ES7 134-6PA00-0BD0): how to save [Wh] value after switching off its powersupply?

Hans_74

Hi,

I am wondering, is there some kind of, for instance, parameter allowing an energy meter to n_o_t lose already collected energy values [Wh] after switching off/on its power supply? Or, do I have to care about this by saving [Wh] in my program.

Currently, when I switch off and then on the power supply of energy meter, energy meter resets already collected [Wh] and thus begins again at 0 (zero) [Wh].
Nevertheless, I want it to not lose [Wh] value and after switching on again to continue at [Wh] value as it was before switching off power supply.

I access active energy value via Input (like other DIs, 32 byte) and it works well; "Nutzdatenvariante" W#16#F9, DINT, [Wh], S7 317-2DP/PN, , ET200SP HF, Profinet. Unfortunately, energy meter begins counting of [Wh] again at zero (0) after switching off/on power supply of it (energymeter).
(I think PAC3200 does not lose [Wh] value after switching off its powersupply.)

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