Some bugfixes

- Config for max string power is now correctly calculated
- Adjusted timing for string and inverter timeout

PLC/POUs/MAIN.TcPOU

@@ -19,6 +19,10 @@ VAR
 	{attribute 'OPC.UA.DA' := '0'}
 	_afbStrings : ARRAY[0..1] OF FB_String[('String 1'), ('String 2')];
 	
+	// Calculate max and min power depending on number of active strings
+	_rMinPower : REAL;
+	_rMaxPower : REAL;
+	
 	// Battery shutdown due to error
 	_xErrorShutdown : BOOL := FALSE;
 	
@@ -659,6 +663,12 @@ FOR _ui := 0 TO (GVL_CONFIG.uiNumberOfStrings-1) DO
 	END_IF
 END_FOR
 
+// ===============================
+// Calculate max and min power depending on number of active strings
+// ===============================
+_rMinPower := _uiNumberOfActiveStrings * DINT_TO_REAL(GVL_CONFIG.diMaxStringChargingPower);
+_rMaxPower := _uiNumberOfActiveStrings * DINT_TO_REAL(GVL_CONFIG.diMaxStringDischargePower);
+
 // ===============================
 // Calculate sum power for string balancing
 // ===============================
@@ -1048,8 +1058,8 @@ _fbTowerLight(
 		END_IF
 		
 	5: // Check if power command is within limits
-		IF _rAutoPowerRequest <= DINT_TO_REAL(GVL_CONFIG.diMaxStringDischargePower)
-				AND _rAutoPowerRequest >= DINT_TO_REAL(GVL_CONFIG.diMaxStringChargingPower) THEN
+		IF _rAutoPowerRequest <= _rMaxPower
+				AND _rAutoPowerRequest >= _rMinPower THEN
 			_xEnableString := TRUE;
 			_xStartBalancing := FALSE;
 			_iState := 10;