diff --git a/Aucma.Core.SheetMetal/appsettings.json b/Aucma.Core.SheetMetal/appsettings.json
index c926d2a4..369a633d 100644
--- a/Aucma.Core.SheetMetal/appsettings.json
+++ b/Aucma.Core.SheetMetal/appsettings.json
@@ -136,7 +136,7 @@
       "PlcType": "Melsec",
       "Enabled": true,
       "IP": "10.10.91.6",
-      "Port": 5553
+      "Port": 5552
     }
   ]
 }