Implemented fixes and improvements during comissioning

- New Balancing mode
- HMI Interface for Inverterdata implemented
- Adjusted GVL_CONFIG values
- Read inverter data even when inverter is off
- Added OPC UA settings to inverter data hmi interface
- Added multisettings to safety project for strings

PLC/GVLs/GVL_SCADA.TcGVL

@@ -17,6 +17,9 @@ VAR_GLOBAL
 	
 	// Can change current control mode
 	xCanChangeControlMode : BOOL;
+	
+	// Current battery power
+	diCurrentBatteryPower : DINT;
 END_VAR]]></Declaration>
   </GVL>
 </TcPlcObject>