2016-01-29 update 1

Modbus.Net/Modbus.Net.OPC/OpcDaProtocal.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ModBus.Net.OPC
+{
+    public class OpcDaProtocal : OpcProtocal
+    {
+        private int _connectTryCount;
+
+        private readonly string _host;
+
+        public OpcDaProtocal(string host)
+        {
+            _host = host;
+        }
+
+        public override bool Connect()
+        {
+            return AsyncHelper.RunSync(ConnectAsync);
+        }
+
+        public override async Task<bool> ConnectAsync()
+        {
+            _connectTryCount++;
+            ProtocalLinker = new OpcDaProtocalLinker(_host);
+            if (!await ProtocalLinker.ConnectAsync()) return false;
+            _connectTryCount = 0;
+            return true;
+        }
+    }
+}