diff --git a/src/org/hwo/ui/servicelink/ServiceLinkPlotProvider.java b/src/org/hwo/ui/servicelink/ServiceLinkPlotProvider.java
index 7902103..b398ee7 100644
--- a/src/org/hwo/ui/servicelink/ServiceLinkPlotProvider.java
+++ b/src/org/hwo/ui/servicelink/ServiceLinkPlotProvider.java
@@ -24,7 +24,7 @@ public class ServiceLinkPlotProvider implements PlotProvider{
 		
 		public void sample(int pos){
 			if (this.serviceRegister.getAsFloat())
-				this.values[pos] = this.serviceRegister.readFloatValue();
+				this.values[pos] = this.serviceRegister.readFloatValueSynchron();
 			else
 				this.values[pos] = this.serviceRegister.readIntegerValue().floatValue();
 		}
diff --git a/src/org/hwo/ui/servicelink/register/ServiceRegister.java b/src/org/hwo/ui/servicelink/register/ServiceRegister.java
index b89b088..82f5fe7 100644
--- a/src/org/hwo/ui/servicelink/register/ServiceRegister.java
+++ b/src/org/hwo/ui/servicelink/register/ServiceRegister.java
@@ -1,6 +1,7 @@
 package org.hwo.ui.servicelink.register;
 
 import java.awt.Component;
+import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -13,6 +14,7 @@ import org.hwo.interactiveobjects.InteractiveObject;
 import org.hwo.io.servicelink.ServiceLink;
 import org.hwo.io.servicelink.ServiceLink.ServiceTelegram;
 import org.hwo.io.servicelink.ServiceLinkException;
+import org.hwo.io.servicelink.ServiceLinkRequestFailedException;
 import org.hwo.io.servicelink.ServiceRegisterListener;
 import org.hwo.models.TableMapper.TableColumn;
 import org.hwo.ui.servicelink.register.bitfield.BitFieldEditor;
@@ -201,6 +203,18 @@ public abstract class ServiceRegister implements ServiceRegisterListener {
 			e.printStackTrace();
 		}
 	}
+
+	public Float readFloatValueSynchron()
+	{
+		try {
+			return serviceLink.readFloat(ax.byteValue(), node.byteValue(), register);
+		} catch (ServiceLinkRequestFailedException e) {
+		} catch (IOException e) {
+		} catch (ServiceLinkException e) {
+		}
+		return null;
+	}
+	
 	
 	public Integer readIntegerValue()
 	{