Added multi string handling and balancing

PLC/POUs/FB_PowerMeter.TcPOU

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TcPlcObject Version="1.1.0.1" ProductVersion="3.1.4026.8">
+  <POU Name="FB_PowerMeter" Id="{9d4159f4-2d3f-4522-a770-c038a26d9d77}" SpecialFunc="None">
+    <Declaration><![CDATA[FUNCTION_BLOCK FB_PowerMeter
+VAR_INPUT
+	xResetEnergyCounter : BOOL;
+END_VAR
+VAR_OUTPUT
+END_VAR
+VAR
+	_fbReadRegs : FB_MBReadInputRegs;
+	_fbWriteRegs : FB_MBWriteRegs;
+	
+	_fbREResetEnergyCounter : R_TRIG;
+	_xResetEnergyCounter : BOOL;
+	
+	_iState : INT := 0;
+END_VAR
+]]></Declaration>
+    <Implementation>
+      <ST><![CDATA[_fbREResetEnergyCounter(CLK := 	xResetEnergyCounter);
+
+IF _fbREResetEnergyCounter.Q THEN
+	_xResetEnergyCounter := TRUE;
+END_IF
+
+CASE _iState OF
+	0: // Idle
+		IF _xResetEnergyCounter THEN
+			_xResetEnergyCounter := FALSE;
+			_iState := 10;
+		END_IF
+		
+	10: // Reset energy counters
+		_fbWriteRegs(
+			sIPAddr:= '192.168.42.80', 
+			nTCPPort:= 502, 
+			nUnitID:= 16#FF , 
+			nQuantity:= , 
+			nMBAddr:= 16#0600, 
+			cbLength:= , 
+			pSrcAddr:= , 
+			bExecute:= , 
+			tTimeout:= , 
+			bBusy=> , 
+			bError=> , 
+			nErrId=> );
+END_CASE]]></ST>
+    </Implementation>
+  </POU>
+</TcPlcObject>