diff --git a/Test-S7/TestMainForm.Designer.cs b/Test-S7/TestMainForm.Designer.cs
index 0c54fb65..29fc683d 100644
--- a/Test-S7/TestMainForm.Designer.cs
+++ b/Test-S7/TestMainForm.Designer.cs
@@ -40,6 +40,7 @@
       this.btnReadString = new System.Windows.Forms.Button();
       this.btnReadDWord = new System.Windows.Forms.Button();
       this.btnReadWord = new System.Windows.Forms.Button();
+      this.btnReadReal = new System.Windows.Forms.Button();
       this.btnReadByte = new System.Windows.Forms.Button();
       this.textBox1 = new System.Windows.Forms.TextBox();
       this.groupBox2 = new System.Windows.Forms.GroupBox();
@@ -58,7 +59,7 @@
       this.tslRTime = new System.Windows.Forms.ToolStripStatusLabel();
       this.groupBox4 = new System.Windows.Forms.GroupBox();
       this.btnStrWrite = new System.Windows.Forms.Button();
-      this.btnNumWrite = new System.Windows.Forms.Button();
+      this.btnNumWriteW = new System.Windows.Forms.Button();
       this.txtWriteVal2 = new System.Windows.Forms.TextBox();
       this.label9 = new System.Windows.Forms.Label();
       this.txtWriteVal1 = new System.Windows.Forms.TextBox();
@@ -67,7 +68,8 @@
       this.label10 = new System.Windows.Forms.Label();
       this.txtWriteAddr1 = new System.Windows.Forms.TextBox();
       this.label7 = new System.Windows.Forms.Label();
-      this.btnReadReal = new System.Windows.Forms.Button();
+      this.btnNumWriteDW = new System.Windows.Forms.Button();
+      this.btnNumWriteB = new System.Windows.Forms.Button();
       this.groupBox1.SuspendLayout();
       this.groupBox2.SuspendLayout();
       this.groupBox3.SuspendLayout();
@@ -78,11 +80,11 @@
       // txtIP
       // 
       this.txtIP.Location = new System.Drawing.Point(64, 19);
-      this.txtIP.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtIP.Margin = new System.Windows.Forms.Padding(2);
       this.txtIP.Name = "txtIP";
       this.txtIP.Size = new System.Drawing.Size(83, 20);
       this.txtIP.TabIndex = 0;
-      this.txtIP.Text = "192.168.1.21";
+      this.txtIP.Text = "192.168.1.208";
       this.txtIP.TextChanged += new System.EventHandler(this.txtIP_TextChanged);
       // 
       // lblIP
@@ -105,7 +107,7 @@
             "S71200",
             "S71500"});
       this.cbCpuType.Location = new System.Drawing.Point(64, 50);
-      this.cbCpuType.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.cbCpuType.Margin = new System.Windows.Forms.Padding(2);
       this.cbCpuType.Name = "cbCpuType";
       this.cbCpuType.Size = new System.Drawing.Size(83, 21);
       this.cbCpuType.TabIndex = 2;
@@ -135,11 +137,11 @@
       // txtMemArea
       // 
       this.txtMemArea.Location = new System.Drawing.Point(117, 16);
-      this.txtMemArea.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtMemArea.Margin = new System.Windows.Forms.Padding(2);
       this.txtMemArea.Name = "txtMemArea";
       this.txtMemArea.Size = new System.Drawing.Size(89, 20);
       this.txtMemArea.TabIndex = 4;
-      this.txtMemArea.Text = "DB700.DBD0";
+      this.txtMemArea.Text = "DB700.DBB0";
       this.txtMemArea.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
       this.txtMemArea.TextChanged += new System.EventHandler(this.txtMemArea_TextChanged);
       // 
@@ -156,7 +158,7 @@
       // txtMemSize
       // 
       this.txtMemSize.Location = new System.Drawing.Point(117, 63);
-      this.txtMemSize.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtMemSize.Margin = new System.Windows.Forms.Padding(2);
       this.txtMemSize.Name = "txtMemSize";
       this.txtMemSize.Size = new System.Drawing.Size(89, 20);
       this.txtMemSize.TabIndex = 6;
@@ -178,9 +180,9 @@
       this.groupBox1.Controls.Add(this.label3);
       this.groupBox1.Controls.Add(this.label2);
       this.groupBox1.Location = new System.Drawing.Point(351, 10);
-      this.groupBox1.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox1.Margin = new System.Windows.Forms.Padding(2);
       this.groupBox1.Name = "groupBox1";
-      this.groupBox1.Padding = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox1.Padding = new System.Windows.Forms.Padding(2);
       this.groupBox1.Size = new System.Drawing.Size(290, 85);
       this.groupBox1.TabIndex = 8;
       this.groupBox1.TabStop = false;
@@ -189,7 +191,7 @@
       // btnReadString
       // 
       this.btnReadString.Location = new System.Drawing.Point(209, 61);
-      this.btnReadString.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.btnReadString.Margin = new System.Windows.Forms.Padding(2);
       this.btnReadString.Name = "btnReadString";
       this.btnReadString.Size = new System.Drawing.Size(76, 20);
       this.btnReadString.TabIndex = 11;
@@ -200,7 +202,7 @@
       // btnReadDWord
       // 
       this.btnReadDWord.Location = new System.Drawing.Point(209, 38);
-      this.btnReadDWord.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.btnReadDWord.Margin = new System.Windows.Forms.Padding(2);
       this.btnReadDWord.Name = "btnReadDWord";
       this.btnReadDWord.Size = new System.Drawing.Size(76, 20);
       this.btnReadDWord.TabIndex = 10;
@@ -212,7 +214,7 @@
       // btnReadWord
       // 
       this.btnReadWord.Location = new System.Drawing.Point(209, 15);
-      this.btnReadWord.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.btnReadWord.Margin = new System.Windows.Forms.Padding(2);
       this.btnReadWord.Name = "btnReadWord";
       this.btnReadWord.Size = new System.Drawing.Size(76, 20);
       this.btnReadWord.TabIndex = 10;
@@ -220,10 +222,21 @@
       this.btnReadWord.UseVisualStyleBackColor = true;
       this.btnReadWord.Click += new System.EventHandler(this.btnReadWord_Click);
       // 
+      // btnReadReal
+      // 
+      this.btnReadReal.Location = new System.Drawing.Point(176, 39);
+      this.btnReadReal.Margin = new System.Windows.Forms.Padding(2);
+      this.btnReadReal.Name = "btnReadReal";
+      this.btnReadReal.Size = new System.Drawing.Size(30, 20);
+      this.btnReadReal.TabIndex = 9;
+      this.btnReadReal.Text = "REAL";
+      this.btnReadReal.UseVisualStyleBackColor = true;
+      this.btnReadReal.Click += new System.EventHandler(this.btnReadReal_Click);
+      // 
       // btnReadByte
       // 
       this.btnReadByte.Location = new System.Drawing.Point(117, 38);
-      this.btnReadByte.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.btnReadByte.Margin = new System.Windows.Forms.Padding(2);
       this.btnReadByte.Name = "btnReadByte";
       this.btnReadByte.Size = new System.Drawing.Size(55, 20);
       this.btnReadByte.TabIndex = 9;
@@ -237,7 +250,7 @@
       this.textBox1.BorderStyle = System.Windows.Forms.BorderStyle.None;
       this.textBox1.Font = new System.Drawing.Font("Microsoft Sans Serif", 7F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
       this.textBox1.Location = new System.Drawing.Point(9, 36);
-      this.textBox1.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.textBox1.Margin = new System.Windows.Forms.Padding(2);
       this.textBox1.Multiline = true;
       this.textBox1.Name = "textBox1";
       this.textBox1.Size = new System.Drawing.Size(95, 27);
@@ -252,9 +265,9 @@
       this.groupBox2.AutoSize = true;
       this.groupBox2.Controls.Add(this.txtOut);
       this.groupBox2.Location = new System.Drawing.Point(9, 154);
-      this.groupBox2.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox2.Margin = new System.Windows.Forms.Padding(2);
       this.groupBox2.Name = "groupBox2";
-      this.groupBox2.Padding = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox2.Padding = new System.Windows.Forms.Padding(2);
       this.groupBox2.Size = new System.Drawing.Size(632, 327);
       this.groupBox2.TabIndex = 9;
       this.groupBox2.TabStop = false;
@@ -267,7 +280,7 @@
       this.txtOut.Font = new System.Drawing.Font("Microsoft Sans Serif", 7F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
       this.txtOut.ForeColor = System.Drawing.Color.Yellow;
       this.txtOut.Location = new System.Drawing.Point(2, 15);
-      this.txtOut.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtOut.Margin = new System.Windows.Forms.Padding(2);
       this.txtOut.Multiline = true;
       this.txtOut.Name = "txtOut";
       this.txtOut.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
@@ -288,9 +301,9 @@
       this.groupBox3.Controls.Add(this.lblIP);
       this.groupBox3.Controls.Add(this.label1);
       this.groupBox3.Location = new System.Drawing.Point(9, 10);
-      this.groupBox3.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox3.Margin = new System.Windows.Forms.Padding(2);
       this.groupBox3.Name = "groupBox3";
-      this.groupBox3.Padding = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox3.Padding = new System.Windows.Forms.Padding(2);
       this.groupBox3.Size = new System.Drawing.Size(336, 85);
       this.groupBox3.TabIndex = 10;
       this.groupBox3.TabStop = false;
@@ -302,7 +315,7 @@
       this.textBox2.BorderStyle = System.Windows.Forms.BorderStyle.None;
       this.textBox2.Font = new System.Drawing.Font("Microsoft Sans Serif", 7F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
       this.textBox2.Location = new System.Drawing.Point(226, 31);
-      this.textBox2.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.textBox2.Margin = new System.Windows.Forms.Padding(2);
       this.textBox2.Multiline = true;
       this.textBox2.Name = "textBox2";
       this.textBox2.Size = new System.Drawing.Size(105, 44);
@@ -322,7 +335,7 @@
       // txtSlot
       // 
       this.txtSlot.Location = new System.Drawing.Point(190, 50);
-      this.txtSlot.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtSlot.Margin = new System.Windows.Forms.Padding(2);
       this.txtSlot.Name = "txtSlot";
       this.txtSlot.Size = new System.Drawing.Size(32, 20);
       this.txtSlot.TabIndex = 5;
@@ -342,7 +355,7 @@
       // txtRack
       // 
       this.txtRack.Location = new System.Drawing.Point(190, 19);
-      this.txtRack.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtRack.Margin = new System.Windows.Forms.Padding(2);
       this.txtRack.Name = "txtRack";
       this.txtRack.Size = new System.Drawing.Size(32, 20);
       this.txtRack.TabIndex = 5;
@@ -402,7 +415,9 @@
       this.groupBox4.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
             | System.Windows.Forms.AnchorStyles.Right)));
       this.groupBox4.Controls.Add(this.btnStrWrite);
-      this.groupBox4.Controls.Add(this.btnNumWrite);
+      this.groupBox4.Controls.Add(this.btnNumWriteB);
+      this.groupBox4.Controls.Add(this.btnNumWriteDW);
+      this.groupBox4.Controls.Add(this.btnNumWriteW);
       this.groupBox4.Controls.Add(this.txtWriteVal2);
       this.groupBox4.Controls.Add(this.label9);
       this.groupBox4.Controls.Add(this.txtWriteVal1);
@@ -412,9 +427,9 @@
       this.groupBox4.Controls.Add(this.txtWriteAddr1);
       this.groupBox4.Controls.Add(this.label7);
       this.groupBox4.Location = new System.Drawing.Point(9, 95);
-      this.groupBox4.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox4.Margin = new System.Windows.Forms.Padding(2);
       this.groupBox4.Name = "groupBox4";
-      this.groupBox4.Padding = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.groupBox4.Padding = new System.Windows.Forms.Padding(2);
       this.groupBox4.Size = new System.Drawing.Size(632, 58);
       this.groupBox4.TabIndex = 12;
       this.groupBox4.TabStop = false;
@@ -423,29 +438,29 @@
       // btnStrWrite
       // 
       this.btnStrWrite.Location = new System.Drawing.Point(599, 20);
-      this.btnStrWrite.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.btnStrWrite.Margin = new System.Windows.Forms.Padding(2);
       this.btnStrWrite.Name = "btnStrWrite";
-      this.btnStrWrite.Size = new System.Drawing.Size(26, 19);
+      this.btnStrWrite.Size = new System.Drawing.Size(31, 19);
       this.btnStrWrite.TabIndex = 10;
-      this.btnStrWrite.Text = "W";
+      this.btnStrWrite.Text = "SW";
       this.btnStrWrite.UseVisualStyleBackColor = true;
       this.btnStrWrite.Click += new System.EventHandler(this.btnStrWrite_Click);
       // 
-      // btnNumWrite
+      // btnNumWriteW
       // 
-      this.btnNumWrite.Location = new System.Drawing.Point(242, 20);
-      this.btnNumWrite.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
-      this.btnNumWrite.Name = "btnNumWrite";
-      this.btnNumWrite.Size = new System.Drawing.Size(28, 19);
-      this.btnNumWrite.TabIndex = 10;
-      this.btnNumWrite.Text = "W";
-      this.btnNumWrite.UseVisualStyleBackColor = true;
-      this.btnNumWrite.Click += new System.EventHandler(this.btnNumWrite_Click);
+      this.btnNumWriteW.Location = new System.Drawing.Point(247, 19);
+      this.btnNumWriteW.Margin = new System.Windows.Forms.Padding(2);
+      this.btnNumWriteW.Name = "btnNumWriteW";
+      this.btnNumWriteW.Size = new System.Drawing.Size(36, 19);
+      this.btnNumWriteW.TabIndex = 10;
+      this.btnNumWriteW.Text = "W";
+      this.btnNumWriteW.UseVisualStyleBackColor = true;
+      this.btnNumWriteW.Click += new System.EventHandler(this.btnNumWriteW_Click);
       // 
       // txtWriteVal2
       // 
       this.txtWriteVal2.Location = new System.Drawing.Point(459, 20);
-      this.txtWriteVal2.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtWriteVal2.Margin = new System.Windows.Forms.Padding(2);
       this.txtWriteVal2.Name = "txtWriteVal2";
       this.txtWriteVal2.Size = new System.Drawing.Size(141, 20);
       this.txtWriteVal2.TabIndex = 8;
@@ -465,7 +480,7 @@
       // txtWriteVal1
       // 
       this.txtWriteVal1.Location = new System.Drawing.Point(178, 20);
-      this.txtWriteVal1.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtWriteVal1.Margin = new System.Windows.Forms.Padding(2);
       this.txtWriteVal1.Name = "txtWriteVal1";
       this.txtWriteVal1.Size = new System.Drawing.Size(65, 20);
       this.txtWriteVal1.TabIndex = 8;
@@ -485,11 +500,11 @@
       // txtWriteAddr2
       // 
       this.txtWriteAddr2.Location = new System.Drawing.Point(336, 20);
-      this.txtWriteAddr2.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtWriteAddr2.Margin = new System.Windows.Forms.Padding(2);
       this.txtWriteAddr2.Name = "txtWriteAddr2";
       this.txtWriteAddr2.Size = new System.Drawing.Size(88, 20);
       this.txtWriteAddr2.TabIndex = 6;
-      this.txtWriteAddr2.Text = "DB700.DBB0";
+      this.txtWriteAddr2.Text = "DB701.DBB0";
       this.txtWriteAddr2.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
       // 
       // label10
@@ -505,11 +520,11 @@
       // txtWriteAddr1
       // 
       this.txtWriteAddr1.Location = new System.Drawing.Point(53, 20);
-      this.txtWriteAddr1.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.txtWriteAddr1.Margin = new System.Windows.Forms.Padding(2);
       this.txtWriteAddr1.Name = "txtWriteAddr1";
       this.txtWriteAddr1.Size = new System.Drawing.Size(93, 20);
       this.txtWriteAddr1.TabIndex = 6;
-      this.txtWriteAddr1.Text = "DB700.DBD160";
+      this.txtWriteAddr1.Text = "DB701.DBB0";
       this.txtWriteAddr1.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
       // 
       // label7
@@ -522,16 +537,27 @@
       this.label7.TabIndex = 7;
       this.label7.Text = "ADDR 1";
       // 
-      // btnReadReal
+      // btnNumWriteDW
       // 
-      this.btnReadReal.Location = new System.Drawing.Point(176, 39);
-      this.btnReadReal.Margin = new System.Windows.Forms.Padding(2);
-      this.btnReadReal.Name = "btnReadReal";
-      this.btnReadReal.Size = new System.Drawing.Size(30, 20);
-      this.btnReadReal.TabIndex = 9;
-      this.btnReadReal.Text = "REAL";
-      this.btnReadReal.UseVisualStyleBackColor = true;
-      this.btnReadReal.Click += new System.EventHandler(this.btnReadReal_Click);
+      this.btnNumWriteDW.Location = new System.Drawing.Point(247, 36);
+      this.btnNumWriteDW.Margin = new System.Windows.Forms.Padding(2);
+      this.btnNumWriteDW.Name = "btnNumWriteDW";
+      this.btnNumWriteDW.Size = new System.Drawing.Size(36, 19);
+      this.btnNumWriteDW.TabIndex = 10;
+      this.btnNumWriteDW.Text = "DW";
+      this.btnNumWriteDW.UseVisualStyleBackColor = true;
+      this.btnNumWriteDW.Click += new System.EventHandler(this.btnNumWriteDW_Click);
+      // 
+      // btnNumWriteB
+      // 
+      this.btnNumWriteB.Location = new System.Drawing.Point(247, 4);
+      this.btnNumWriteB.Margin = new System.Windows.Forms.Padding(2);
+      this.btnNumWriteB.Name = "btnNumWriteB";
+      this.btnNumWriteB.Size = new System.Drawing.Size(36, 19);
+      this.btnNumWriteB.TabIndex = 10;
+      this.btnNumWriteB.Text = "B";
+      this.btnNumWriteB.UseVisualStyleBackColor = true;
+      this.btnNumWriteB.Click += new System.EventHandler(this.btnNumWriteB_Click);
       // 
       // TestMainForm
       // 
@@ -543,7 +569,7 @@
       this.Controls.Add(this.groupBox3);
       this.Controls.Add(this.groupBox2);
       this.Controls.Add(this.groupBox1);
-      this.Margin = new System.Windows.Forms.Padding(2, 2, 2, 2);
+      this.Margin = new System.Windows.Forms.Padding(2);
       this.Name = "TestMainForm";
       this.Text = "SIEMENS S7 TEST";
       this.groupBox1.ResumeLayout(false);
@@ -590,7 +616,7 @@
     private System.Windows.Forms.ToolStripStatusLabel tslRTime;
     private System.Windows.Forms.GroupBox groupBox4;
     private System.Windows.Forms.Button btnStrWrite;
-    private System.Windows.Forms.Button btnNumWrite;
+    private System.Windows.Forms.Button btnNumWriteW;
     private System.Windows.Forms.TextBox txtWriteVal2;
     private System.Windows.Forms.Label label9;
     private System.Windows.Forms.TextBox txtWriteVal1;
@@ -603,6 +629,8 @@
     private System.Windows.Forms.Button btnReadWord;
     private System.Windows.Forms.Button btnReadDWord;
     private System.Windows.Forms.Button btnReadReal;
+    private System.Windows.Forms.Button btnNumWriteB;
+    private System.Windows.Forms.Button btnNumWriteDW;
   }
 }
 
diff --git a/Test-S7/TestMainForm.cs b/Test-S7/TestMainForm.cs
index ef45eb2d..cdf6711a 100644
--- a/Test-S7/TestMainForm.cs
+++ b/Test-S7/TestMainForm.cs
@@ -299,7 +299,7 @@ namespace Test_S7
         numByte = memByteRead[1];
         // poi prendo la stringa...
         string outVal = "";
-        for (int i = 2; i < numByte+2; i++)
+        for (int i = 2; i < numByte + 2; i++)
         {
           outVal += Char.ConvertFromUtf32(memByteRead[i]);
         }
@@ -405,6 +405,66 @@ namespace Test_S7
       lg.Info(outText);
     }
 
+    /// <summary>
+    /// Esecuzione SCRITTURA Byte!
+    /// </summary>
+    private void eseguiScritturaByte()
+    {
+      sw.Restart();
+      if (testCncConn())
+      {
+        // decodifico memoria...
+        memAddress memoria = new memAddress(txtWriteAddr1.Text);
+        byte num2write = 0;
+        string val2write = txtWriteVal2.Text;
+        byte.TryParse(txtWriteVal1.Text, out num2write);
+        byte[] DB_Byte = new byte[1];
+        DB_Byte[0] = num2write;
+        currPLC.WriteBytes(DataType.DataBlock, memoria.DbNum, memoria.indiceMem, DB_Byte);
+        titolo = string.Format("WRITE BLOCK MEM: {0}", txtWriteAddr1.Text);
+        contenuto = "";
+        contenuto += string.Format("DT: {0} | DbNum: {1} | indiceMem: {2} | num2write: {3}{4}{4}", DataType.DataBlock, memoria.DbNum, memoria.indiceMem, num2write, Environment.NewLine);
+        string byteVal = "";
+        for (int i = 0; i < DB_Byte.Length; i++)
+        {
+          byteVal = Convert.ToString(DB_Byte[i], 2).PadLeft(8, '0');
+          contenuto += string.Format("B{0:000}: {1} | {2}{3}", i, byteVal, DB_Byte[i], Environment.NewLine);
+        }
+        showOut(titolo, contenuto);
+      }
+      sw.Stop();
+      tslRTime.Text = string.Format("{0}", sw.Elapsed);
+    }
+    /// <summary>
+    /// Esecuzione SCRITTURA WORD!
+    /// </summary>
+    private void eseguiScritturaWord()
+    {
+      sw.Restart();
+      if (testCncConn())
+      {
+        // decodifico memoria...
+        memAddress memoria = new memAddress(txtWriteAddr1.Text);
+        UInt16 num2write = 0;
+        string val2write = txtWriteVal2.Text;
+        UInt16.TryParse(txtWriteVal1.Text, out num2write);
+        byte[] DB_Byte = new byte[2];
+        S7.Net.Types.Word.ToByteArray(num2write).CopyTo(DB_Byte, 0);
+        currPLC.WriteBytes(DataType.DataBlock, memoria.DbNum, memoria.indiceMem, DB_Byte);
+        titolo = string.Format("WRITE BLOCK MEM: {0}", txtWriteAddr1.Text);
+        contenuto = "";
+        contenuto += string.Format("DT: {0} | DbNum: {1} | indiceMem: {2} | num2write: {3}{4}{4}", DataType.DataBlock, memoria.DbNum, memoria.indiceMem, num2write, Environment.NewLine);
+        string byteVal = "";
+        for (int i = 0; i < DB_Byte.Length; i++)
+        {
+          byteVal = Convert.ToString(DB_Byte[i], 2).PadLeft(8, '0');
+          contenuto += string.Format("B{0:000}: {1} | {2}{3}", i, byteVal, DB_Byte[i], Environment.NewLine);
+        }
+        showOut(titolo, contenuto);
+      }
+      sw.Stop();
+      tslRTime.Text = string.Format("{0}", sw.Elapsed);
+    }
     /// <summary>
     /// Esecuzione SCRITTURA DWORD!
     /// </summary>
@@ -453,7 +513,9 @@ namespace Test_S7
         {
           val2write = val2write.Substring(0, 20);
         }
-        num2write = txtWriteVal2.Text.Length;
+        // scambio spazi con underscore...
+        val2write = val2write.Replace(' ', '_');
+        num2write = val2write.Length;
         byte[] DB_Byte = new byte[maxStrChar + 2];
         // primi 2 byte sono 20 (fix) e lung effettiva...
         DB_Byte[0] = 20;
@@ -461,7 +523,7 @@ namespace Test_S7
         // converto 1-1 i char in byte...
         for (int i = 0; i < num2write; i++)
         {
-          DB_Byte[2 + i] = (byte)(txtWriteVal2.Text[i]);
+          DB_Byte[2 + i] = (byte)(val2write[i]);
         }
         currPLC.WriteBytes(DataType.DataBlock, memoria.DbNum, memoria.indiceMem, DB_Byte);
         titolo = string.Format("WRITE BLOCK MEM: {0}", txtWriteAddr1.Text);
@@ -473,16 +535,7 @@ namespace Test_S7
       tslRTime.Text = string.Format("{0}", sw.Elapsed);
     }
 
-    /// <summary>
-    /// Scrivo memoria tipo NUM
-    /// </summary>
-    /// <param name="sender"></param>
-    /// <param name="e"></param>
-    private void btnNumWrite_Click(object sender, EventArgs e)
-    {
-      setParamPlc();
-      eseguiScritturaDWord();
-    }
+
     /// <summary>
     /// Scrivo memoria tipo STRING
     /// </summary>
@@ -557,6 +610,24 @@ namespace Test_S7
       setParamPlc();
       eseguiLetturaReal();
     }
+
+    private void btnNumWriteB_Click(object sender, EventArgs e)
+    {
+      setParamPlc();
+      eseguiScritturaByte();
+    }
+
+    private void btnNumWriteDW_Click(object sender, EventArgs e)
+    {
+      setParamPlc();
+      eseguiScritturaDWord();
+    }
+
+    private void btnNumWriteW_Click(object sender, EventArgs e)
+    {
+      setParamPlc();
+      eseguiScritturaWord();
+    }
   }
 
 }