diff --git a/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/standard_conveyor_control_with_scanner/StandardCoveyorControlWithScannerDeviceDriver.java b/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/standard_conveyor_control_with_scanner/StandardCoveyorControlWithScannerDeviceDriver.java
index 1ddc0e543..ac3042120 100644
--- a/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/standard_conveyor_control_with_scanner/StandardCoveyorControlWithScannerDeviceDriver.java
+++ b/acs/nladmin-system/src/main/java/org/nl/acs/device_driver/basedriver/standard_conveyor_control_with_scanner/StandardCoveyorControlWithScannerDeviceDriver.java
@@ -244,20 +244,21 @@ public class StandardCoveyorControlWithScannerDeviceDriver extends AbstractOpcDe
         } catch (Exception var17) {
             return;
         }
-        if (!this.itemProtocol.getIsonline()) {
+//        if (!this.itemProtocol.getIsonline()) {
+//            this.setIsonline(false);
+//            this.setIserror(true);
+//            message = "信号量同步异常";
+//            //未联机
+//        } else
+        if (mode == 0) {
             this.setIsonline(false);
-            this.setIserror(true);
-            message = "信号量同步异常";
-            //未联机
-        } else if (mode == 0) {
-            this.setIsonline(false);
-            this.setIserror(true);
             message = "未联机";
-
         } else {
             this.setIsonline(true);
             this.setIserror(false);
-            message = "";
+            if(error>0){
+                this.setIserror(true);
+            }
             Instruction instruction = null;
             List toInstructions;
             switch (mode) {