diff --git a/LaiPuLaser/LaiPuLaser/OtherMonitorDevMgr.cpp b/LaiPuLaser/LaiPuLaser/OtherMonitorDevMgr.cpp
index 7972125..c12fdfd 100644
--- a/LaiPuLaser/LaiPuLaser/OtherMonitorDevMgr.cpp
+++ b/LaiPuLaser/LaiPuLaser/OtherMonitorDevMgr.cpp
@@ -156,7 +156,7 @@ CMFCPropertyGridProperty *COtherMonitorDevMgr::CreatGridProperty()
 
 					   //添加属性显示
 					   PropertyName = _T("大理石机台烟雾报警阀值");
-					   Description = _T("大理石机台烟雾报警：最小浓度值1000");
+					   Description = _T("大理石机台烟雾报警：范围[1000,20000]");
 
 					   pPropertie->SetGroupName(GroupName);
 					   pPropertie->SetShowName(PropertyName);
@@ -179,7 +179,7 @@ CMFCPropertyGridProperty *COtherMonitorDevMgr::CreatGridProperty()
 
 					   //添加属性显示
 					   PropertyName = _T("B01箱子烟雾报警阀值");
-					   Description = _T("B01箱子烟雾报警：最小浓度值1000");
+					   Description = _T("B01箱子烟雾报警：范围[1000,20000]");
 
 					   pPropertie->SetGroupName(GroupName);
 					   pPropertie->SetShowName(PropertyName);
@@ -202,7 +202,7 @@ CMFCPropertyGridProperty *COtherMonitorDevMgr::CreatGridProperty()
 
 					   //添加属性显示
 					   PropertyName = _T("B03箱子烟雾报警阀值");
-					   Description = _T("B03箱子烟雾报警：最小浓度值1000");
+					   Description = _T("B03箱子烟雾报警：范围[1000,20000]");
 
 					   pPropertie->SetGroupName(GroupName);
 					   pPropertie->SetShowName(PropertyName);
@@ -1175,34 +1175,59 @@ void COtherMonitorDevMgr::WriteModValToPLC()
 		gLogMgr->WriteLogInfo(LogInfo);
 		gPlcCommunicationMgr->WriteRwRegisterWORDValue(PLATSUCKER2_VACPRESSURE_INDEX, m_ValScal_Sucker2_VacPressure);
 	}
-	iDevVal = GetMonitorDevVal(_MonitorValType_Marble_Smoke_Threshold);
-	if (iDevVal != m_SmokeAlarmThreshold)
 	{
-		if (m_SmokeAlarmThreshold < 1000) {
-			m_SmokeAlarmThreshold = 1000;
+		int NeedVal = m_SmokeAlarmThreshold;
+		if (m_SmokeAlarmThreshold < 1000) 
+		{
+			NeedVal = 1000;
+		}
+		else if (m_SmokeAlarmThreshold>20000)
+		{
+			NeedVal = 20000;
+		}
+		iDevVal = GetMonitorDevVal(_MonitorValType_Marble_Smoke_Threshold);
+		if (iDevVal != NeedVal)
+		{
+			LogInfo.m_LogMsg.Format("Set m_SmokeAlarmThreshold = %d", NeedVal);
+			gLogMgr->WriteLogInfo(LogInfo);
+			gPlcCommunicationMgr->WriteRwRegisterWORDValue(MARBLE_SMOKE_THRESHOLD_INDEX, NeedVal);
 		}
-		LogInfo.m_LogMsg.Format("Set m_SmokeAlarmThreshold = %d", m_SmokeAlarmThreshold);
-		gLogMgr->WriteLogInfo(LogInfo);		gPlcCommunicationMgr->WriteRwRegisterWORDValue(MARBLE_SMOKE_THRESHOLD_INDEX, m_SmokeAlarmThreshold);
 	}
-	iDevVal = GetMonitorDevVal(_MonitorValType_B01_Smoke_Threshold);
-	if (iDevVal != m_B01SmokeAlarmThreshold)
 	{
-		if (m_B01SmokeAlarmThreshold < 1000) {
-			m_B01SmokeAlarmThreshold = 1000;
+		int NeedVal = m_B01SmokeAlarmThreshold;
+		if (m_B01SmokeAlarmThreshold < 1000)
+		{
+			NeedVal = 1000;
+		}
+		else if (m_B01SmokeAlarmThreshold > 20000)
+		{
+			NeedVal = 20000;
+		}
+		iDevVal = GetMonitorDevVal(_MonitorValType_B01_Smoke_Threshold);
+		if (iDevVal != NeedVal)
+		{
+			LogInfo.m_LogMsg.Format("Set m_B01SmokeAlarmThreshold = %d", NeedVal);
+			gLogMgr->WriteLogInfo(LogInfo);
+			gPlcCommunicationMgr->WriteRwRegisterWORDValue(B01_SMOKE_THRESHOLD_INDEX, NeedVal);
 		}
-		LogInfo.m_LogMsg.Format("Set m_B01SmokeAlarmThreshold = %d", m_B01SmokeAlarmThreshold);
-		gLogMgr->WriteLogInfo(LogInfo);
-		gPlcCommunicationMgr->WriteRwRegisterWORDValue(B01_SMOKE_THRESHOLD_INDEX, m_B01SmokeAlarmThreshold);
 	}
-	iDevVal = GetMonitorDevVal(_MonitorValType_B03_Smoke_Threshold);
-	if (iDevVal != m_B03SmokeAlarmThreshold)
 	{
-		if (m_B03SmokeAlarmThreshold < 1000) {
-			m_B03SmokeAlarmThreshold = 1000;
+		int NeedVal = m_B03SmokeAlarmThreshold;
+		if (m_B03SmokeAlarmThreshold < 1000)
+		{
+			NeedVal = 1000;
+		}
+		else if (m_B03SmokeAlarmThreshold > 20000)
+		{
+			NeedVal = 20000;
+		}
+		iDevVal = GetMonitorDevVal(_MonitorValType_B03_Smoke_Threshold);
+		if (iDevVal != NeedVal)
+		{
+			LogInfo.m_LogMsg.Format("Set m_B03SmokeAlarmThreshold = %d", NeedVal);
+			gLogMgr->WriteLogInfo(LogInfo);
+			gPlcCommunicationMgr->WriteRwRegisterWORDValue(B03_SMOKE_THRESHOLD_INDEX, NeedVal);
 		}
-		LogInfo.m_LogMsg.Format("Set m_B03SmokeAlarmThreshold = %d", m_B03SmokeAlarmThreshold);
-		gLogMgr->WriteLogInfo(LogInfo);
-		gPlcCommunicationMgr->WriteRwRegisterWORDValue(B03_SMOKE_THRESHOLD_INDEX, m_B03SmokeAlarmThreshold);
 	}
 }