diff --git a/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/paint_conveyor/PaintConveyorDeviceDriver.java b/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/paint_conveyor/PaintConveyorDeviceDriver.java
index a90ec80..1e0e6b3 100644
--- a/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/paint_conveyor/PaintConveyorDeviceDriver.java
+++ b/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/paint_conveyor/PaintConveyorDeviceDriver.java
@@ -61,7 +61,7 @@ public class PaintConveyorDeviceDriver extends AbstractOpcDeviceDriver implement
     private Date instruction_apply_time = new Date();
     private int instruction_require_time_out = 3000;
 
-    int heartbeat = 0;
+    //int heartbeat = 0;
     int mode = 0;
     int move = 0;
     int action = 0;
@@ -95,7 +95,7 @@ public class PaintConveyorDeviceDriver extends AbstractOpcDeviceDriver implement
         String message = null;
 
         device_code = this.getDeviceCode();
-        heartbeat = this.itemProtocol.getItem_heartbeat();
+        //heartbeat = this.itemProtocol.getItem_heartbeat();
         mode = this.itemProtocol.getItem_mode();
         move = this.itemProtocol.getItem_move();
         action = this.itemProtocol.getItem_action();