添加 风环PLC 添加V5 看门狗功能。 用于电脑与PLC连接断开，PLC会断电。

Project.FLY.FeedbackRenZiJia/FLY.FeedbackRenZiJia/Server/PLCLink.cs

@@ -21,13 +21,25 @@ namespace FLY.FeedbackRenZiJia.Server
         const int MaxRegsOfOneRead = 50;
         const int MaxCoilsOfOneRead = 100;
 
-        //D200	4x201 通道数量
-        //D201	4x202 设置值 更新
-        //D202	4x203 当前值 更新 //不用
-        //D400	4x401 设置值 160个
-        //D600	4x601 当前值 160个 //不用
-        //M3	0x4	风环开关
-        //M4	0x5	检测电流
+        //D200	通道数量
+        //D201	设置值 更新
+        //D202	当前值 更新 //不用
+        //D400	设置值 160个
+        //D600	当前值 160个 //不用
+        //M3	风环开关
+        //M4	检测电流
+        //M0    看门狗 PC写1
+
+        const int ADDR_ChannelCnt = 200;
+        const int ADDR_ChannelValuesUpdate = 201;
+        const int ADDR_ChannelValues = 400;
+        const int ADDR_ChannelValues_Count = 160;
+
+        const int ADDR_Heartbeat = 0;
+        const int ADDR_StatusZone = 3;
+        const int ADDR_StatusZone_Index_PcOnline = 0;
+        const int ADDR_StatusZone_Index_HasCurrent = 1;
+        const int ADDR_StatusZone_Cnt = 2;
 
         public FLY.Modbus.WithThread.ClientTCP mclient;
         /// <summary>
@@ -66,8 +78,12 @@ namespace FLY.FeedbackRenZiJia.Server
         /// 异常次数
         /// </summary>
         public int ErrorCnt { get; private set; }
-
+        /// <summary>
+        /// 心跳写入周期，单位ms
+        /// </summary>
+        const int heartbeatInterval = 2000;
         CancellationTokenSource cts;
+        Stopwatch stopwatch_heartbeat;
 
         public PLCLink(IPEndPoint ep)
         {
@@ -94,8 +110,8 @@ namespace FLY.FeedbackRenZiJia.Server
             if (!IsConnected)
                 return;
 
-            //D200	4x201	通道数量
-            RegWrite regWrite = new RegWrite(PLCAddressArea.Register, 200, new UInt16[] { channelCnt });
+            //D200	通道数量
+            RegWrite regWrite = new RegWrite(PLCAddressArea.Register, ADDR_ChannelCnt, new UInt16[] { channelCnt });
             lock (rws)
             {
                 rws.Add(regWrite);
@@ -106,8 +122,8 @@ namespace FLY.FeedbackRenZiJia.Server
             if (!IsConnected)
                 return;
 
-            //D201	4x202	设置值 更新
-            RegWrite regWrite = new RegWrite(PLCAddressArea.Register, 201, new UInt16[] { heatUpdate });
+            //D201	设置值 更新
+            RegWrite regWrite = new RegWrite(PLCAddressArea.Register, ADDR_ChannelValuesUpdate, new UInt16[] { heatUpdate });
             lock (rws)
             {
                 rws.Add(regWrite);
@@ -141,7 +157,7 @@ namespace FLY.FeedbackRenZiJia.Server
         void OnPoll_update()
         {
             Stopwatch stopwatch = new Stopwatch();
-
+            stopwatch_heartbeat = new Stopwatch();
 
         _connect:
             while (true)
@@ -166,6 +182,7 @@ namespace FLY.FeedbackRenZiJia.Server
                 rws.Clear();
             }
             stopwatch.Restart();
+            stopwatch_heartbeat.Restart();
             while (true)
             {
                 if (cts.IsCancellationRequested)
@@ -187,6 +204,20 @@ namespace FLY.FeedbackRenZiJia.Server
                     IsConnected = true;
                 }
 
+                //心跳包
+                if (stopwatch_heartbeat.ElapsedMilliseconds >= heartbeatInterval)
+                {
+                    stopwatch_heartbeat.Restart();
+
+                    if (!SetHeartbeat())
+                    {
+                        if (cts.IsCancellationRequested)//可能是外部强制关闭
+                            goto _end;
+
+                        goto _error;//连接断开，终止更新线程
+                    }
+                }
+
                 //输出写入数据
                 if (!UpdateWriteData())
                 {
@@ -212,15 +243,15 @@ namespace FLY.FeedbackRenZiJia.Server
 
         bool UpdateReadData()
         {
-            //M3	0x4	风环开关
-            //M4	0x5	检测电流
-            if (!mclient.Do_01(3, 2, out IEnumerable<bool> values))
+            //M3	风环开关
+            //M4	检测电流
+            if (!mclient.Do_01(ADDR_StatusZone, ADDR_StatusZone_Cnt, out IEnumerable<bool> values))
                 return false;
-            HasFan = values.ElementAt(0);
-            HasElectricity = values.ElementAt(1);
+            HasFan = values.ElementAt(ADDR_StatusZone_Index_PcOnline);
+            HasElectricity = values.ElementAt(ADDR_StatusZone_Index_HasCurrent);
 
-            //D201	4x202	设置值 更新
-            if (!mclient.Do_03(201, 1, out IEnumerable<UInt16> values2))
+            //D201	设置值 更新
+            if (!mclient.Do_03(ADDR_ChannelValuesUpdate, 1, out IEnumerable<UInt16> values2))
                 return false;
 
             HeatUpdate_R = values2.ElementAt(0);
@@ -263,8 +294,8 @@ namespace FLY.FeedbackRenZiJia.Server
 
             UInt16[] buf = values.ToArray();
             List<RegWrite> writes = new List<RegWrite>();
-            //D400	4x401	设置值 160个
-            int addr = 400;
+            //D400	设置值 160个
+            int addr = ADDR_ChannelValues;
 
             int cnt = buf.Count();
             int offset = 0;
@@ -292,5 +323,16 @@ namespace FLY.FeedbackRenZiJia.Server
             }
         }
 
+
+        /// <summary>
+        /// 心跳包，每5秒设置一次 
+        /// </summary>
+        bool SetHeartbeat()
+        {
+            //M0 Heartbeat 信号， 由电脑写1, PLC写0， 当电脑 1分钟 都没写一次1，就会停止当前全部加热 
+            if (!mclient.Do_05(ADDR_Heartbeat, true))
+                return false;
+            return true;
+        }
     }
 }

Resource/风环PLC/版本描述.txt

@@ -19,3 +19,9 @@ PLC 地址为 192.168.50.60
 //--------------------------------------------
 v4
 不检测 X17,  对应的 M3(自动风环开关检测) 恒为1
+
+
+//--------------------------------------------
+v5
+添加 M0， PC喂狗，需要每30秒内设置M0=1,  PLC会把M0=0,同时设置M3=1,
+允许加热， 当30秒内M0都一直为0， M3会被复位为0， 不能加热
\ No newline at end of file