diff --git a/src/Khd.Core.Wcs/MainCentralControl.cs b/src/Khd.Core.Wcs/MainCentralControl.cs
index 2ff49fb..e2bd3b4 100644
--- a/src/Khd.Core.Wcs/MainCentralControl.cs
+++ b/src/Khd.Core.Wcs/MainCentralControl.cs
@@ -50,7 +50,7 @@ namespace Khd.Core.Wcs
                         plc = new Plc.S7.Plc(plcConfig.CpuType, plcConfig.IP, plcConfig.Port, plcConfig.Rack, plcConfig.Slot);
                         try
                         {
-                            //plc.Open();
+                            plc.Open();
                             Console.WriteLine(DateTime.Now + ":连接PLC：" + plcConfig.IP);
                         }
                         catch