diff --git a/Service/Plc/Client/PlcClient.cs b/Service/Plc/Client/PlcClient.cs
index 0254ee2..c57faa2 100644
--- a/Service/Plc/Client/PlcClient.cs
+++ b/Service/Plc/Client/PlcClient.cs
@@ -161,7 +161,7 @@ public class PlcClient : ModbusTcpMaster
         {
             #region 有报警比较两边差异，新出现的报警就添加，消失的报警就处理并记录
 
-            var lstEquipAlarmRecord=EquipAlarmRecordRepository.Query();
+            var lstEquipAlarmRecord=EquipAlarmRecordRepository.QueryListByClause(i => i.EquipTypeCode == 3);
             var sqllstAlarm=lstEquipAlarmRecord.Select(obj => obj.ErrorCode).ToList();
 
             // 找出实时报警中存在但数据库中不存在的元素