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/DUTs/ST_STRING_HMI_INTERFACE.TcDUT

@@ -14,6 +14,15 @@ STRUCT
 	// Current status
 	// ====================================
 	eStatus : E_COMPONENT_STATUS;
+	
+	// Current string current
+	// ==============================
+	stStringCurrent : ST_HMI_ANALOG_VALUE;
+	
+	// Current inverter data
+	// ==============================
+	stInverterData : ST_SUNSPEC_CURRENT_VALUES;
+	
 END_STRUCT
 END_TYPE
 ]]></Declaration>