diff --git a/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/siemens_conveyor/SiemensConveyorDeviceDriver.java b/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/siemens_conveyor/SiemensConveyorDeviceDriver.java
index 789f3aea4..fea6b44f1 100644
--- a/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/siemens_conveyor/SiemensConveyorDeviceDriver.java
+++ b/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/siemens_conveyor/SiemensConveyorDeviceDriver.java
@@ -162,9 +162,9 @@ public class SiemensConveyorDeviceDriver extends AbstractOpcDeviceDriver impleme
                     message = null;
                     inst_message = null;
                     this.clearWrite();
-                    if (last_move == 1) {
-                        this.requiresShipDeviceUpdate = false;
-                    }
+                }
+                if (move == 0 && last_move == 1) {
+                    this.requiresShipDeviceUpdate = false;
                 }
                 logServer.deviceItemValue(this.device_code, "move", String.valueOf(move));
                 logServer.deviceExecuteLog(this.device_code, "", "", "信号move：" + last_move + "->" + move);