diff --git a/RIZO.Admin.WebApi/PLC/Service/PlcService.cs b/RIZO.Admin.WebApi/PLC/Service/PlcService.cs
index 341a0f7..bac42cd 100644
--- a/RIZO.Admin.WebApi/PLC/Service/PlcService.cs
+++ b/RIZO.Admin.WebApi/PLC/Service/PlcService.cs
@@ -2137,7 +2137,7 @@ namespace RIZO.Admin.WebApi.PLC.Service
                 WritePlcString(plc, _mesStringReturnMap["订单下发"].Addr, _mesStringReturnMap["订单下发"].Len, "cpxhtest");
             }
             catch (Exception ex)
-            {;
+            {
             }
         }