diff --git a/Service/Plc/Client/PlcMgr.cs b/Service/Plc/Client/PlcMgr.cs
index 90078a4..1307953 100644
--- a/Service/Plc/Client/PlcMgr.cs
+++ b/Service/Plc/Client/PlcMgr.cs
@@ -193,6 +193,9 @@ public class PlcMgr
         {
             heart = !heart;
             HostToPlc writeHostToPlc = new HostToPlc();
+            writeHostToPlc.ProtocolVersion1.Value = 2;
+            writeHostToPlc.ProtocolVersion2.Value = 0;
+            writeHostToPlc.ProtocolVersion3.Value = 1;
             writeHostToPlc.CommunicationDiagnosis.Value = (ushort)(heart ? 1 : 0);
             writeHostToPlc.Years.Value = (ushort)DateTime.Now.Year;
             writeHostToPlc.Month.Value = (ushort)DateTime.Now.Month;
@@ -201,6 +204,9 @@ public class PlcMgr
             writeHostToPlc.Points.Value = (ushort)DateTime.Now.Minute;
             writeHostToPlc.Seconds.Value = (ushort)DateTime.Now.Second;
 
+            bool write01 = PlcClient.WriteValue(writeHostToPlc.ProtocolVersion1);
+            bool write02 = PlcClient.WriteValue(writeHostToPlc.ProtocolVersion2);
+            bool write03 = PlcClient.WriteValue(writeHostToPlc.ProtocolVersion3);
             bool write0 = PlcClient.WriteValue(writeHostToPlc.CommunicationDiagnosis);
             bool write1 = PlcClient.WriteValue(writeHostToPlc.Years);
             bool write2 = PlcClient.WriteValue(writeHostToPlc.Month);