diff --git a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskStepBase.java b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskStepBase.java
index 311098f..0fb6f86 100644
--- a/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskStepBase.java
+++ b/src/src/main/java/com/my/graphiteDigesterBg/diframe/DiTaskStepBase.java
@@ -1,6 +1,10 @@
 package com.my.graphiteDigesterBg.diframe;
 import com.fasterxml.jackson.databind.JsonNode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 abstract public class DiTaskStepBase implements DiTaskStep {
+    // logger
+    public static final Logger LOG = LoggerFactory.getLogger(DiTaskStepBase.class);
     // name of step action
     public String action;
     // step node
@@ -37,4 +41,10 @@ abstract public class DiTaskStepBase implements DiTaskStep {
     public String getAction() {
         return action;
     }
+
+    // get actuator
+    public <T extends DiActuator> T getActuator( String actuatorKey, Class<T> clazz ) {
+        DiActuator actuator = this.getTask().getDevice().getActuators().get(actuatorKey);
+        return clazz.cast(actuator);
+    }
 }