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 deeef59fa..ae9cca0d9 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
@@ -262,7 +262,7 @@ public class BeltConveyorDeviceDriver extends AbstractOpcDeviceDriver implements
                 requireSucess = false;
             }
 
-            if (move != 0 && task > 0) {
+            if (move != 0 && Integer.parseInt(to_task) > 0) {
                 CompletableFuture.runAsync(() -> {
                     // 异步更新指令状态
                     try {