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 f36a861d7..9ecc7c4f1 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
@@ -467,13 +467,22 @@ public class SiemensConveyorDeviceDriver extends AbstractOpcDeviceDriver impleme
 
         applyManipulatorActionRequest.setDevice_code(device_code);
         applyManipulatorActionRequest.setAction("3");
-        applyManipulatorActionRequest.setTask_code1(inst.getTask_code());
-
-        logServer.deviceExecuteLog(this.device_code, "", "", "task变化请求LMS,参数:" + applyManipulatorActionRequest);
-        ApplyManipulatorActionResponse response = acsToWmsService.applyManipulatorActionRequest(applyManipulatorActionRequest);
-        if (response == null || response.getstatus() == 200) {
-            logServer.deviceExecuteLog(this.device_code, "", "", "task变化请求LMS,接口返回:" + response.getMessage());
+        if (ObjectUtil.isNotEmpty(inst) && StrUtil.isNotEmpty(inst.getTask_code())) {
+            applyManipulatorActionRequest.setTask_code1(inst.getTask_code());
+        }else {
+            message = "task变化未找到指令";
         }
+        logServer.deviceExecuteLog(this.device_code, "", "", "task变化请求LMS,参数:" + applyManipulatorActionRequest);
+        try {
+            ApplyManipulatorActionResponse response = acsToWmsService.applyManipulatorActionRequest(applyManipulatorActionRequest);
+            if (response == null || response.getstatus() == 200) {
+                logServer.deviceExecuteLog(this.device_code, "", "", "task变化请求LMS,接口返回:" + response.getMessage());
+            }
+        }catch (Exception e){
+            e.printStackTrace();
+            logServer.deviceExecuteLog(this.device_code, "", "", "task变化请求LMS失败" + e.getMessage());
+        }
+
     }