diff --git a/SCADA/Example/BatchCoreTest.exe b/SCADA/Example/BatchCoreTest.exe
index be72798..a76ca9e 100644
Binary files a/SCADA/Example/BatchCoreTest.exe and b/SCADA/Example/BatchCoreTest.exe differ
diff --git a/SCADA/Example/CoreTest.exe b/SCADA/Example/CoreTest.exe
index 016e451..ccab608 100644
Binary files a/SCADA/Example/CoreTest.exe and b/SCADA/Example/CoreTest.exe differ
diff --git a/SCADA/Program/FileDriver/TagDriver.cs b/SCADA/Program/FileDriver/TagDriver.cs
index 4f731de..d9acb4a 100644
--- a/SCADA/Program/FileDriver/TagDriver.cs
+++ b/SCADA/Program/FileDriver/TagDriver.cs
@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.ComponentModel;
 using DataService;
+using System;
 
 namespace FileDriver
 {
@@ -184,37 +185,93 @@ namespace FileDriver
 
         public int WriteBit(DeviceAddress address, bool bit)
         {
-            return 0;
+            var tag = _parent[(short)address.CacheIndex];
+            if (tag != null)
+            {
+                Storage v = tag.Value;
+                v.Boolean = bit;
+                tag.Update(v, DateTime.Now, QUALITIES.QUALITY_GOOD);
+                return 0;
+            }
+            return -1;
         }
 
         public int WriteBits(DeviceAddress address, byte bits)
         {
-            return 0;
+            var tag = _parent[(short)address.CacheIndex];
+            if (tag != null)
+            {
+                Storage v = tag.Value;
+                v.Byte = bits;
+                tag.Update(v, DateTime.Now, QUALITIES.QUALITY_GOOD);
+                return 0;
+            }
+            return -1;
         }
 
         public int WriteInt16(DeviceAddress address, short value)
         {
-            return 0;
+            var tag = _parent[(short)address.CacheIndex];
+            if (tag != null)
+            {
+                Storage v = tag.Value;
+                v.Int16 = value;
+                tag.Update(v, DateTime.Now, QUALITIES.QUALITY_GOOD);
+                return 0;
+            }
+            return -1;
         }
 
         public int WriteUInt16(DeviceAddress address, ushort value)
         {
-            return 0;
+            var tag = _parent[(short)address.CacheIndex];
+            if (tag != null)
+            {
+                Storage v = tag.Value;
+                v.Word = value;
+                tag.Update(v, DateTime.Now, QUALITIES.QUALITY_GOOD);
+                return 0;
+            }
+            return -1;
         }
 
         public int WriteUInt32(DeviceAddress address, uint value)
         {
-            return 0;
+            var tag = _parent[(short)address.CacheIndex];
+            if (tag != null)
+            {
+                Storage v = tag.Value;
+                v.DWord = value;
+                tag.Update(v, DateTime.Now, QUALITIES.QUALITY_GOOD);
+                return 0;
+            }
+            return -1;
         }
 
         public int WriteInt32(DeviceAddress address, int value)
         {
-            return 0;
+            var tag = _parent[(short)address.CacheIndex];
+            if (tag != null)
+            {
+                Storage v = tag.Value;
+                v.Int32 = value;
+                tag.Update(v, DateTime.Now, QUALITIES.QUALITY_GOOD);
+                return 0;
+            }
+            return -1;
         }
 
         public int WriteFloat(DeviceAddress address, float value)
         {
-            return 0;
+            var tag = _parent[(short)address.CacheIndex];
+            if (tag != null)
+            {
+                Storage v = tag.Value;
+                v.Single = value;
+                tag.Update(v, DateTime.Now, QUALITIES.QUALITY_GOOD);
+                return 0;
+            }
+            return -1;
         }
 
         public int WriteString(DeviceAddress address, string str)
diff --git a/SCADA/dll/FileDriver.dll b/SCADA/dll/FileDriver.dll
index 7b44f9c..f2ac39e 100644
Binary files a/SCADA/dll/FileDriver.dll and b/SCADA/dll/FileDriver.dll differ