[modbus-e3dc] Fixes wrong E3/DC Emergency Power Possible bit (openhab…

…#10536)

Fixes openhab#10513

Signed-off-by: Sebastian <ZweiSK135@t-online.de>

bundles/org.openhab.binding.modbus.e3dc/src/main/java/org/openhab/binding/modbus/e3dc/internal/dto/EmergencyBlock.java

@@ -67,7 +67,7 @@ public EmergencyBlock(byte[] bArray) {
         BitSet bs = BitSet.valueOf(emsStatusBytes);
         batteryChargingLocked = OnOffType.from(bs.get(EMS_CHARGING_LOCK_BIT));
         batteryDischargingLocked = OnOffType.from(bs.get(EMS_DISCHARGING_LOCK_BIT));
-        epPossible = OnOffType.from(bs.get(EMS_DISCHARGING_LOCK_BIT));
+        epPossible = OnOffType.from(bs.get(EMS_AVAILABLE_BIT));
         weatherPredictedCharging = OnOffType.from(bs.get(EMS_WEATHER_CHARGING_BIT));
         regulationStatus = OnOffType.from(bs.get(EMS_REGULATION_BIT));
         chargeLockTime = OnOffType.from(bs.get(EMS_CHARGE_LOCKTIME_BIT));