Linked all tank sensors in media cabinet

- Additional fixes for the hmi

PLC/LibraryCandidates/ModbusMaster/FB_ModbusMaster.TcPOU

@@ -114,7 +114,7 @@ IF _iHead = _iTail THEN
 	M_Dequeue := FALSE;
 ELSE
 	// Get next entry
-	_stCurrReq := _astReqQueue;
+	_stCurrReq := _astReqQueue[_iHead];
 	_iHead := (_iHead + 1) MOD GVL_ModbusMaster.QUEUE_SIZE;
 	M_Dequeue := TRUE;
 END_IF]]></ST>
@@ -140,7 +140,11 @@ ELSE
 	_astReqQueue[_iNextTail] := stReq;
 	_iTail := _iNextTail;
 	M_Enqueue := TRUE;
-END_IF]]></ST>
+END_IF
+
+// Reset error and done
+stReq.pxDone^ := FALSE;
+stReq.pxError^ := FALSE;]]></ST>
       </Implementation>
     </Method>
   </POU>