diff --git a/Service/PlcAfrica/Msg/PlcAfricaMsg.cs b/Service/PlcAfrica/Msg/PlcAfricaMsg.cs
index cbd6b23..365ac6a 100644
--- a/Service/PlcAfrica/Msg/PlcAfricaMsg.cs
+++ b/Service/PlcAfrica/Msg/PlcAfricaMsg.cs
@@ -75,6 +75,10 @@ public class PlcAfricaMsg
     /// 站控指令反馈
     /// </summary>
     public ModbusProperty<ushort> StationCommandFeedback {get;set;}= new(47012);
+    /// <summary>
+    /// 站控心跳
+    /// </summary>
+    public ModbusProperty<ushort> Heart {get;set;}= new(47013);
 
     /// <summary>
     /// 车上亏电电池高度