diff --git a/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/conveyor/belt_conveyor/BeltConveyorDeviceDriver.java b/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/conveyor/belt_conveyor/BeltConveyorDeviceDriver.java
index 30d9cd5d6..c5163a74c 100644
--- a/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/conveyor/belt_conveyor/BeltConveyorDeviceDriver.java
+++ b/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/conveyor/belt_conveyor/BeltConveyorDeviceDriver.java
@@ -236,7 +236,6 @@ public class BeltConveyorDeviceDriver extends AbstractOpcDeviceDriver implements
 
 
             if (mode != last_mode) {
-
                 requireSucess = false;
 
             }
diff --git a/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java b/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java
index a1b7bfa5a..f38f85748 100644
--- a/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java
+++ b/acs2/nladmin-system/nlsso-server/src/main/java/org/nl/acs/device_driver/stacker/standard_stacker/StandardStackerDeviceDriver.java
@@ -322,6 +322,10 @@ public class StandardStackerDeviceDriver extends AbstractOpcDeviceDriver impleme
             trayCode = this.itemProtocol.getItem_trayCode();
             storage_cache = this.itemProtocol.getItem_storage_cache();
 
+            if (!command.equals(last_command)){
+                requireSucess=false;
+            }
+
 
             // 更新指令状态
             if (mode == 3 && task > 0) {