1.Resolved multiple issues and defects

2.Implemented a license management system requiring users to obtain updated "license.lic" files from the author

DriverTest/Program.cs

@@ -10,14 +10,13 @@ using S7CommPlusDriver;
 
 using S7CommPlusDriver.ClientApi;
 
-
 namespace DriverTest
 {
     class Program
     {
         static void Main(string[] args)
         {
-            string HostIp = "192.168.0.1";
+            string HostIp = "192.168.0.250";
             string Password = "";
             int res;
             List<ItemAddress> readlist = new List<ItemAddress>();
@@ -33,7 +32,8 @@ namespace DriverTest
             Console.WriteLine("Main - Versuche Verbindungsaufbau zu: " + HostIp);
 
             S7CommPlusConnection conn = new S7CommPlusConnection();
-            conn.OnlySecurePGOrPCAndHMI = true;//Only secure PG/PC and HMI communication
+            conn.OnlySecurePGOrPCAndHMI = false;
+            
             System.Diagnostics.Stopwatch stopwatch1 = new System.Diagnostics.Stopwatch();
             stopwatch1.Start();
             res = conn.Connect(HostIp, Password);
@@ -53,7 +53,7 @@ namespace DriverTest
                 res = conn.Browse(out vars);
                 Console.WriteLine("Main - Browse res=" + res);
                 #endregion
-                List<VarInfo> vars_ = vars.GetRange(0,50);
+                List<VarInfo> vars_ = vars.GetRange(0, 1000);
 #if _TEST_PLCTAG
                 #region Werte aller Variablen einlesen
                 Console.WriteLine("Main - Lese Werte aller Variablen aus");
@@ -63,7 +63,8 @@ namespace DriverTest
 
                 foreach (var v in vars_)
                 {
-                    taglist.Add(PlcTags.TagFactory(v.Name, new ItemAddress(v.AccessSequence), v.Softdatatype));
+                    ItemAddress itemAddress = new ItemAddress(v.AccessSequence);
+                    taglist.Add(PlcTags.TagFactory(v.Name, itemAddress, v.Softdatatype));
                 }
                 foreach (var t in taglist)
                 {
@@ -98,6 +99,7 @@ namespace DriverTest
                         string header = $"读取{vars_.Count}个变量耗时{ms}毫秒";
                         Console.WriteLine(header);
                     }
+                    System.Threading.Thread.Sleep(10);
                 }
 #endif
 

DriverTest/bin/Debug/key_20251031_150257.log

@@ -1,5 +0,0 @@
-SERVER_HANDSHAKE_TRAFFIC_SECRET 9d2884bb6d1ca343e259a23ffd195961228283a253916cb75661a90dbfa056f0 54afed328765987b013f17d3425b5ad139cd775ded5d8e9bd12fa96f93166508f793dca53267752de04c627218b51e4c
-EXPORTER_SECRET 9d2884bb6d1ca343e259a23ffd195961228283a253916cb75661a90dbfa056f0 eaa6ef9882ce9d8c002ab41043f699f94d2a34fae101b9a2cd773dfdf7e6329acb65f2f6301c6894331bb62c35a63429
-SERVER_TRAFFIC_SECRET_0 9d2884bb6d1ca343e259a23ffd195961228283a253916cb75661a90dbfa056f0 87149d68005b5512c6efbce24dcfb35146a4c49dcc2cc29d84294c566a45ee66b53df30eafea7c3f4070df9959d7f6be
-CLIENT_HANDSHAKE_TRAFFIC_SECRET 9d2884bb6d1ca343e259a23ffd195961228283a253916cb75661a90dbfa056f0 d1d792a9d1a2f49dbda3f09b48a25de60192cef4434efd5cf51a61f73ce9e6d7c4f4dc466a6694a6d5612efd2773f784
-CLIENT_TRAFFIC_SECRET_0 9d2884bb6d1ca343e259a23ffd195961228283a253916cb75661a90dbfa056f0 2238f875c69a7f5704c1792f3dec81b98af34d18643b467cccb730efc123c789632303c6e2c48dd2a397652ddfcf890a

DriverTest/bin/Debug/key_20251031_150910.log

@@ -1,5 +0,0 @@
-SERVER_HANDSHAKE_TRAFFIC_SECRET ef29f3273eb4c3848fb8e869418198253bb70d55e234e55ed14bf4b4bab5c5b4 5c61d992793df1e85a7f6d9c3ffd27084373954871a262ccd827c65dc9a10b0fb8153392ced7cacdcb5c523d5eac9adb
-EXPORTER_SECRET ef29f3273eb4c3848fb8e869418198253bb70d55e234e55ed14bf4b4bab5c5b4 97ed8911dac9e9e8543496c3ebf120a804da5fa88f70854e693a83db5b9f39d45a7c223f2782c6fc6943f18916c797f7
-SERVER_TRAFFIC_SECRET_0 ef29f3273eb4c3848fb8e869418198253bb70d55e234e55ed14bf4b4bab5c5b4 3ca5d277257f1f536affba73730ec5561eb3654eddb53146e3935f79f3dde5d9b11220936506aa7c2806ba0fd3df065c
-CLIENT_HANDSHAKE_TRAFFIC_SECRET ef29f3273eb4c3848fb8e869418198253bb70d55e234e55ed14bf4b4bab5c5b4 caf02ef79a590b2d9dd78149774174c4a305bc9255fb1df90c66f61e9445be5d74c43b2eff8be2aebfab27ca40751d3c
-CLIENT_TRAFFIC_SECRET_0 ef29f3273eb4c3848fb8e869418198253bb70d55e234e55ed14bf4b4bab5c5b4 9d6d6cc9fc091479726907304d7c47d84e718db4b09319871d009dc7eb19c5795487528194c362708cd86faf4452f73b

DriverTest/bin/Debug/license.lic

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<license id="fe76d797-6ecf-4e79-aa95-e2d30037a4c2" generate="2025-11-03T03:21:24.1952286" expiration="2025-11-10T03:21:24.1952286" type="Standard" AppName="Application" Fingerprint="0E963B0E20A1F6AC">
+  <name>EasyLicense</name>
+  <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
+    <SignedInfo>
+      <CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
+      <SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
+      <Reference URI="">
+        <Transforms>
+          <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
+        </Transforms>
+        <DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
+        <DigestValue>2ARv1/EpdnU8XLyDEGR1br2dBD1EhjPyTuIem87R0YM=</DigestValue>
+      </Reference>
+    </SignedInfo>
+    <SignatureValue>DB6lmvc3b0zI9Y7k+SvGegAroCRxNxbIOAZydZMz7EpFW8yNDy6iIU9uuUBIhSYdk4mEIoroxFA6Ra2Ha9Gc0bShMtJdnyBVw2My+9DNFf1iA0Nzf7qdEUfR3dd4I+w/awgGBfAqO67LxPrCva3i+AitHgSMywadcJ+45lKJDbE=</SignatureValue>
+  </Signature>
+</license>

DriverTest/obj/Debug/DriverTest.csproj.FileListAbsolute.txt

@@ -3,12 +3,6 @@ C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\D
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\DriverTest.exe
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\DriverTest.pdb
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\S7CommPlusDriver.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\S7PublicKeys.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\S7Utilities.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\zlib.net.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\S7CommPlusAuth.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\bin\Debug\S7Family0.dll
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\obj\Debug\DriverTest.csproj.CopyComplete
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\obj\Debug\DriverTest.exe
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\obj\Debug\DriverTest.pdb
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\DriverTest\obj\Debug\DriverTest.csprojAssemblyReference.cache

S7CommPlusGUIBrowser/Form1.Designer.cs

@@ -26,8 +26,7 @@
             this.components = new System.ComponentModel.Container();
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
             this.groupBox1 = new System.Windows.Forms.GroupBox();
-            this.lbStatus = new System.Windows.Forms.Label();
-            this.label6 = new System.Windows.Forms.Label();
+            this.checkBox1 = new System.Windows.Forms.CheckBox();
             this.btnDisconnect = new System.Windows.Forms.Button();
             this.btnConnect = new System.Windows.Forms.Button();
             this.label2 = new System.Windows.Forms.Label();
@@ -45,6 +44,7 @@
             this.tbSymbol = new System.Windows.Forms.TextBox();
             this.label3 = new System.Windows.Forms.Label();
             this.statusStrip1 = new System.Windows.Forms.StatusStrip();
+            this.lbStatus = new System.Windows.Forms.ToolStripStatusLabel();
             this.txt_plcInfo = new System.Windows.Forms.ToolStripStatusLabel();
             this.groupBox1.SuspendLayout();
             this.groupBox2.SuspendLayout();
@@ -53,8 +53,7 @@
             // 
             // groupBox1
             // 
-            this.groupBox1.Controls.Add(this.lbStatus);
-            this.groupBox1.Controls.Add(this.label6);
+            this.groupBox1.Controls.Add(this.checkBox1);
             this.groupBox1.Controls.Add(this.btnDisconnect);
             this.groupBox1.Controls.Add(this.btnConnect);
             this.groupBox1.Controls.Add(this.label2);
@@ -68,21 +67,16 @@
             this.groupBox1.TabStop = false;
             this.groupBox1.Text = "Connection";
             // 
-            // lbStatus
+            // checkBox1
             // 
-            this.lbStatus.Location = new System.Drawing.Point(44, 114);
-            this.lbStatus.Name = "lbStatus";
-            this.lbStatus.Size = new System.Drawing.Size(116, 15);
-            this.lbStatus.TabIndex = 7;
-            // 
-            // label6
-            // 
-            this.label6.AutoSize = true;
-            this.label6.Location = new System.Drawing.Point(6, 114);
-            this.label6.Name = "label6";
-            this.label6.Size = new System.Drawing.Size(47, 12);
-            this.label6.TabIndex = 6;
-            this.label6.Text = "Status:";
+            this.checkBox1.AutoSize = true;
+            this.checkBox1.Location = new System.Drawing.Point(9, 112);
+            this.checkBox1.Name = "checkBox1";
+            this.checkBox1.Size = new System.Drawing.Size(156, 16);
+            this.checkBox1.TabIndex = 12;
+            this.checkBox1.Text = "Only secure PG/PC -HMI";
+            this.checkBox1.UseVisualStyleBackColor = true;
+            this.checkBox1.CheckedChanged += new System.EventHandler(this.checkBox1_CheckedChanged);
             // 
             // btnDisconnect
             // 
@@ -136,7 +130,7 @@
             this.tbIpAddress.Name = "tbIpAddress";
             this.tbIpAddress.Size = new System.Drawing.Size(151, 21);
             this.tbIpAddress.TabIndex = 0;
-            this.tbIpAddress.Text = "192.168.0.250";
+            this.tbIpAddress.Text = "192.168.0.1";
             // 
             // treeView1
             // 
@@ -282,6 +276,7 @@
             // statusStrip1
             // 
             this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.lbStatus,
             this.txt_plcInfo});
             this.statusStrip1.Location = new System.Drawing.Point(0, 393);
             this.statusStrip1.Name = "statusStrip1";
@@ -289,6 +284,12 @@
             this.statusStrip1.TabIndex = 3;
             this.statusStrip1.Text = "statusStrip1";
             // 
+            // lbStatus
+            // 
+            this.lbStatus.Name = "lbStatus";
+            this.lbStatus.Size = new System.Drawing.Size(46, 17);
+            this.lbStatus.Text = "Status:";
+            // 
             // txt_plcInfo
             // 
             this.txt_plcInfo.Name = "txt_plcInfo";
@@ -335,12 +336,12 @@
         private System.Windows.Forms.Label label4;
         private System.Windows.Forms.TextBox tbSymbol;
         private System.Windows.Forms.Label label3;
-        private System.Windows.Forms.Label lbStatus;
-        private System.Windows.Forms.Label label6;
         private System.Windows.Forms.Button btnRead;
         private System.Windows.Forms.ImageList imageListTreeIcons;
         private System.Windows.Forms.StatusStrip statusStrip1;
         private System.Windows.Forms.ToolStripStatusLabel txt_plcInfo;
+        private System.Windows.Forms.ToolStripStatusLabel lbStatus;
+        private System.Windows.Forms.CheckBox checkBox1;
     }
 }
 

S7CommPlusGUIBrowser/Form1.cs

@@ -1,406 +1,412 @@
 using S7CommPlusDriver;
 using S7CommPlusDriver.ClientApi;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text.RegularExpressions;
-using System.Windows.Forms;
-
-namespace S7CommPlusGUIBrowser
-{
-    public partial class Form1 : Form
-    {
-
-        private S7CommPlusConnection conn = null;
-
-        public Form1()
-        {
-            InitializeComponent();
-
-            string[] args = Environment.GetCommandLineArgs();
-            // 1st argument can be the plc ip-address, otherwise use default
-            if (args.Length >= 2)
-            {
-                tbIpAddress.Text = args[1];
-            }
-            // 2nd argument can be the plc password, otherwise use default (no password)
-            if (args.Length >= 3)
-            {
-                tbPassword.Text = args[2];
-            }
-        }
-
-        private void setStatus(string status)
-        {
-            lbStatus.Text = status;
-            lbStatus.Refresh();
-        }
-
-        private void btnConnect_Click(object sender, EventArgs e)
-        {
-            setStatus("connecting...");
-
-            if (conn != null) conn.Disconnect();
-            conn = new S7CommPlusConnection();
-            int res = conn.Connect(tbIpAddress.Text, tbPassword.Text);
-            if (res != 0)
-            {
-                setStatus("error");
-                return;
-            }
-            setStatus("connected");
-            txt_plcInfo.Text = $"PLCType: {conn.PLCInformation.PLCType}";
-            treeView1.Nodes.Clear();
-            setStatus("loading...");
-            List<S7CommPlusConnection.DatablockInfo> dbInfoList;
-            res = conn.GetListOfDatablocks(out dbInfoList);
-            if (res != 0)
-            {
-                setStatus("error");
-                return;
-            }
-            TreeNode tn;
-            foreach (S7CommPlusConnection.DatablockInfo dbInfo in dbInfoList)
-            {
-                tn = treeView1.Nodes.Add(dbInfo.db_name);
-                tn.Nodes.Add("Loading...");
-                tn.Tag = dbInfo.db_block_ti_relid;
-                tn.ImageKey = "Datablock";
-                tn.SelectedImageKey = tn.ImageKey;
-            }
-            // Inputs
-            tn = treeView1.Nodes.Add("Inputs");
-            tn.Nodes.Add("Loading...");
-            tn.Tag = 0x90010000;
-            tn.ImageKey = "Default";
-            tn.SelectedImageKey = tn.ImageKey;
-            // Outputs
-            tn = treeView1.Nodes.Add("Outputs");
-            tn.Nodes.Add("Loading...");
-            tn.Tag = 0x90020000;
-            tn.ImageKey = "Default";
-            tn.SelectedImageKey = tn.ImageKey;
-            // Merker
-            tn = treeView1.Nodes.Add("Merker");
-            tn.Nodes.Add("Loading...");
-            tn.Tag = 0x90030000;
-            tn.ImageKey = "Default";
-            tn.SelectedImageKey = tn.ImageKey;
-            // S7Timers
-            tn = treeView1.Nodes.Add("S7Timers");
-            tn.Nodes.Add("Loading...");
-            tn.Tag = 0x90050000;
-            tn.ImageKey = "Default";
-            tn.SelectedImageKey = tn.ImageKey;
-            // S7Counters
-            tn = treeView1.Nodes.Add("S7Counters");
-            tn.Nodes.Add("Loading...");
-            tn.Tag = 0x90060000;
-            tn.ImageKey = "Default";
-            tn.SelectedImageKey = tn.ImageKey;
-
-            setStatus("connected");
-        }
-
-        private void btnDisconnect_Click(object sender, EventArgs e)
-        {
-            setStatus("disconnecting...");
-
-            if (conn != null) conn.Disconnect();
-            conn = null;
-            treeView1.Nodes.Clear();
-            txt_plcInfo.Text = "PLCType:";
-            setStatus("disconnected");
-        }
-
-        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
-        {
-            if (conn != null) conn.Disconnect();
-        }
-
-        private void treeView1_AfterExpand(object sender, TreeViewEventArgs e)
-        {
-            if (e.Node.Nodes.Count < 0 || e.Node.Nodes[0].Text != "Loading...") return;
-
-            setStatus("loading...");
-            e.Node.Nodes.Clear();
-            uint relTiId = (uint)e.Node.Tag;
-            PObject pObj = conn.getTypeInfoByRelId(relTiId);
-            setStatus("connected");
-
-            if (pObj == null || pObj.VarnameList == null) return;
-            TreeNode tn;
-            TreeNode tnarr;
-            for (int i = 0; i < pObj.VarnameList.Names.Count; ++i)
-            {
-                tn = e.Node.Nodes.Add(pObj.VarnameList.Names[i]);
-                SetImageKey(ref tn, pObj.VartypeList.Elements[i]);
-                if (pObj.VartypeList.Elements[i].OffsetInfoType.Is1Dim())
-                {
-                    var ioitarr = (IOffsetInfoType_1Dim)pObj.VartypeList.Elements[i].OffsetInfoType;
-                    uint arrayElementCount = ioitarr.GetArrayElementCount();
-                    int arrayLowerBounds = ioitarr.GetArrayLowerBounds();
-                    for (int j = 0; j < arrayElementCount; ++j)
-                    {
-                        tnarr = tn.Nodes.Add(pObj.VarnameList.Names[i] + "[" + (j + arrayLowerBounds) + "]");
-                        SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
-                        if (pObj.VartypeList.Elements[i].OffsetInfoType.HasRelation())
-                        {
-                            var ioit = (IOffsetInfoType_Relation)pObj.VartypeList.Elements[i].OffsetInfoType;
-                            tnarr.Nodes.Add("Loading...");
-                            tnarr.Tag = ioit.GetRelationId();
-                            SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
-                        }
-                    }
-                    tn.Tag = (uint)0; // is array
-                }
-                else if (pObj.VartypeList.Elements[i].OffsetInfoType.IsMDim())
-                {
-                    var ioitarrm = (IOffsetInfoType_MDim)pObj.VartypeList.Elements[i].OffsetInfoType;
-                    uint[] MdimArrayElementCount = ioitarrm.GetMdimArrayElementCount();
-                    int[] MdimArrayLowerBounds = ioitarrm.GetMdimArrayLowerBounds();
-                    int dimCount = MdimArrayElementCount.Aggregate(0, (acc, act) => acc += (act > 0) ? 1 : 0);
-                    int[] indexes = new int[dimCount];
-                    bool stop = false;
-                    while (!stop)
-                    {
-                        string arrIdxStr = "";
-                        for (int j = dimCount - 1; j >= 0; --j)
-                        {
-                            arrIdxStr += (arrIdxStr != "" ? "," : "") + (indexes[j] + MdimArrayLowerBounds[j]);
-                        }
-                        tnarr = tn.Nodes.Add(pObj.VarnameList.Names[i] + "[" + arrIdxStr + "]");
-                        SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
-                        if (pObj.VartypeList.Elements[i].OffsetInfoType.HasRelation())
-                        {
-                            var ioit = (IOffsetInfoType_Relation)pObj.VartypeList.Elements[i].OffsetInfoType;
-                            tnarr.Nodes.Add("Loading...");
-                            tnarr.Tag = ioit.GetRelationId();
-                            SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
-                        }
-                        ++indexes[0];
-                        for (int j = 0; j < dimCount; ++j)
-                        {
-                            if (indexes[j] >= MdimArrayElementCount[j])
-                            {
-                                if (j + 1 < dimCount)
-                                {
-                                    indexes[j] = 0;
-                                    ++indexes[j + 1];
-                                }
-                                else
-                                {
-                                    stop = true;
-                                }
-                            }
-                            else
-                            {
-                                break;
-                            }
-                        }
-                    }
-                    tn.Tag = (uint)0; // is array
-                }
-                else
-                {
-                    if (pObj.VartypeList.Elements[i].OffsetInfoType.HasRelation())
-                    {
-                        var ioit = (IOffsetInfoType_Relation)pObj.VartypeList.Elements[i].OffsetInfoType;
-                        tn.Nodes.Add("Loading...");
-                        tn.Tag = ioit.GetRelationId();
-                        SetImageKey(ref tn, pObj.VartypeList.Elements[i]);
-                    }
-                }
-            }
-        }
-
-        private void SetImageKey(ref TreeNode tn, PVartypeListElement vte)
-        {
-            string sk = "Tag";
-            switch (vte.Softdatatype)
-            {
-                case Softdatatype.S7COMMP_SOFTDATATYPE_BOOL:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_BBOOL:
-                    sk = "Boolean";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_INT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DINT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_ULINT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_LINT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_USINT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_UINT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_UDINT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_SINT:
-                // Derived types
-                case Softdatatype.S7COMMP_SOFTDATATYPE_BLOCKFB:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_BLOCKFC:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBANY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBDELAY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBTOD:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBCYCLIC:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBATT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_PORT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_RTM:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_PIP:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBPCYCLE:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBHWINT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBDIAG:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBTIMEERROR:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_OBSTARTUP:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DBANY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DBWWW:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DBDYN:
-                    sk = "Integer2";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_BYTE:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_WORD:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DWORD:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_LWORD:
-                // Derived types
-                case Softdatatype.S7COMMP_SOFTDATATYPE_AOMIDENT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_EVENTANY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_EVENTATT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_AOMLINK:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWANY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWIOSYSTEM:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWDPMASTER:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWDEVICE:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWDPSLAVE:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWIO:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWMODULE:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWSUBMODULE:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWHSC:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWPWM:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWPTO:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWINTERFACE:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_HWIEPORT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNANY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNPRG:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNOUC:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNRID:
-                    sk = "Binary2";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_REAL:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_LREAL:
-                    sk = "Number2";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_CHAR:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_WCHAR:
-                    sk = "Char";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_STRING:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_WSTRING:
-                    sk = "Text";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DATE:
-                    sk = "Date";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_TIMEOFDAY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_LTOD:
-                    sk = "Time";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_TIME:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_LTIME:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_S5TIME:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_TIMER:
-                    sk = "Timer"; // Duration
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DATEANDTIME:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_LDT:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_DTL:
-                    sk = "DateTime";
-                    break;
-                case Softdatatype.S7COMMP_SOFTDATATYPE_ANY:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_POINTER:
-                case Softdatatype.S7COMMP_SOFTDATATYPE_REMOTE:
-                    sk = "Any";
-                    break;
-            }
-            if (vte.OffsetInfoType.HasRelation())
-            {
-                sk = "Structure";
-            }
-            tn.ImageKey = sk;
-            tn.SelectedImageKey = tn.ImageKey;
-        }
-
-        private string escapeTiaString(string str, bool isRootNode, bool isArray)
-        {
-            if (isRootNode) return '"' + str + '"';
-            Regex re = new Regex("(^[0-9]|[^0-9A-Za-z_])");
-            if (isArray)
-            {
-                Regex reArr = new Regex("^([^\"]*)(\\[[0-9, ]+\\])$");
-                Match m = reArr.Match(str);
-                if (!m.Success) return str;
-                if (re.Match(m.Groups[1].Value).Success) return '"' + m.Groups[1].Value + '"' + m.Groups[2].Value;
-                return str;
-            }
-            if (re.IsMatch(str)) return '"' + str + '"';
-            return str;
-        }
-
-        private void readTagBySymbol()
-        {
-            tbValue.Text = "";
-            tbSymbolicAddress.Text = "";
-
-            setStatus("loading...");
-            PlcTag tag = conn.getPlcTagBySymbol(tbSymbol.Text);
-            setStatus("connected");
-            if (tag == null) return;
-
-            tbSymbolicAddress.Text = tag.Address.GetAccessString();
-
-            PlcTags tags = new PlcTags();
-            tags.AddTag(tag);
-            if (tags.ReadTags(conn) != 0) return;
-            tbValue.Text = tag.ToString();
-        }
-
-        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
-        {
-            if (e.Node.Tag != null) return; // has relId
-
-            string name = "";
-            TreeNode tn = e.Node;
-            while (tn != null)
-            {
-                bool isArray = false;
-                string nodeText = tn.Text;
-                tn = tn.Parent;
-                if (tn != null && tn.Tag != null)
-                { // is array
-                    if ((uint)tn.Tag == 0)
-                    {
-                        isArray = true;
-                        tn = tn.Parent; // skip array parent
-                    }
-                }
-                if (tn != null && tn.Tag != null)
-                { // don't add in/out/merker area as tag
-                    uint relId = (uint)tn.Tag;
-                    if (relId == 0x90010000 || relId == 0x90020000 || relId == 0x90030000) tn = null;
-                }
-                name = escapeTiaString(nodeText, tn == null, isArray) + (name != "" ? "." : "") + name;
-            }
-            tbSymbol.Text = name;
-
-            readTagBySymbol();
-        }
-
-        private void btnRead_Click(object sender, EventArgs e)
-        {
-            if (tbSymbol.Text == "") return;
-
-            try
-            {
-                readTagBySymbol();
-            }
-            catch (Exception ex)
-            {
-                MessageBox.Show("ERROR: " + ex.Message);
-            }
-        }
-    }
-}
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Windows.Forms;
+
+namespace S7CommPlusGUIBrowser
+{
+    public partial class Form1 : Form
+    {
+
+        private S7CommPlusConnection conn = null;
+        private bool onlySecurePGOrPCAndHMI = false;
+
+        public Form1()
+        {
+            InitializeComponent();
+            
+            string[] args = Environment.GetCommandLineArgs();
+            // 1st argument can be the plc ip-address, otherwise use default
+            if (args.Length >= 2)
+            {
+                tbIpAddress.Text = args[1];
+            }
+            // 2nd argument can be the plc password, otherwise use default (no password)
+            if (args.Length >= 3)
+            {
+                tbPassword.Text = args[2];
+            }
+        }
+
+        private void setStatus(string status)
+        {
+            lbStatus.Text = $"Status:{status}|";
+        }
+
+        private void btnConnect_Click(object sender, EventArgs e)
+        {
+            setStatus("connecting...");
+
+            if (conn != null) conn.Disconnect();
+            conn = new S7CommPlusConnection();
+            conn.OnlySecurePGOrPCAndHMI = onlySecurePGOrPCAndHMI;
+            int res = conn.Connect(tbIpAddress.Text, tbPassword.Text);
+            if (res != 0)
+            {
+                setStatus("error");
+                return;
+            }
+            setStatus("connected");
+            txt_plcInfo.Text = $"PLCType: {conn.PLCInformation.PLCType}|MLFB: {conn.PLCInformation.MLFB}|Firmware: {conn.PLCInformation.Firmware}";
+            treeView1.Nodes.Clear();
+            setStatus("loading...");
+            List<S7CommPlusConnection.DatablockInfo> dbInfoList;
+            res = conn.GetListOfDatablocks(out dbInfoList);
+            if (res != 0)
+            {
+                setStatus("error");
+                return;
+            }
+            TreeNode tn;
+            foreach (S7CommPlusConnection.DatablockInfo dbInfo in dbInfoList)
+            {
+                tn = treeView1.Nodes.Add(dbInfo.db_name);
+                tn.Nodes.Add("Loading...");
+                tn.Tag = dbInfo.db_block_ti_relid;
+                tn.ImageKey = "Datablock";
+                tn.SelectedImageKey = tn.ImageKey;
+            }
+            // Inputs
+            tn = treeView1.Nodes.Add("Inputs");
+            tn.Nodes.Add("Loading...");
+            tn.Tag = 0x90010000;
+            tn.ImageKey = "Default";
+            tn.SelectedImageKey = tn.ImageKey;
+            // Outputs
+            tn = treeView1.Nodes.Add("Outputs");
+            tn.Nodes.Add("Loading...");
+            tn.Tag = 0x90020000;
+            tn.ImageKey = "Default";
+            tn.SelectedImageKey = tn.ImageKey;
+            // Merker
+            tn = treeView1.Nodes.Add("Merker");
+            tn.Nodes.Add("Loading...");
+            tn.Tag = 0x90030000;
+            tn.ImageKey = "Default";
+            tn.SelectedImageKey = tn.ImageKey;
+            // S7Timers
+            tn = treeView1.Nodes.Add("S7Timers");
+            tn.Nodes.Add("Loading...");
+            tn.Tag = 0x90050000;
+            tn.ImageKey = "Default";
+            tn.SelectedImageKey = tn.ImageKey;
+            // S7Counters
+            tn = treeView1.Nodes.Add("S7Counters");
+            tn.Nodes.Add("Loading...");
+            tn.Tag = 0x90060000;
+            tn.ImageKey = "Default";
+            tn.SelectedImageKey = tn.ImageKey;
+
+            setStatus("connected");
+        }
+
+        private void btnDisconnect_Click(object sender, EventArgs e)
+        {
+            setStatus("disconnecting...");
+
+            if (conn != null) conn.Disconnect();
+            conn = null;
+            treeView1.Nodes.Clear();
+            txt_plcInfo.Text = "PLCType:";
+            setStatus("disconnected");
+        }
+
+        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
+        {
+            if (conn != null) conn.Disconnect();
+        }
+
+        private void treeView1_AfterExpand(object sender, TreeViewEventArgs e)
+        {
+            if (e.Node.Nodes.Count < 0 || e.Node.Nodes[0].Text != "Loading...") return;
+
+            setStatus("loading...");
+            e.Node.Nodes.Clear();
+            uint relTiId = (uint)e.Node.Tag;
+            PObject pObj = conn.getTypeInfoByRelId(relTiId);
+            setStatus("connected");
+
+            if (pObj == null || pObj.VarnameList == null) return;
+            TreeNode tn;
+            TreeNode tnarr;
+            for (int i = 0; i < pObj.VarnameList.Names.Count; ++i)
+            {
+                tn = e.Node.Nodes.Add(pObj.VarnameList.Names[i]);
+                SetImageKey(ref tn, pObj.VartypeList.Elements[i]);
+                if (pObj.VartypeList.Elements[i].OffsetInfoType.Is1Dim())
+                {
+                    var ioitarr = (IOffsetInfoType_1Dim)pObj.VartypeList.Elements[i].OffsetInfoType;
+                    uint arrayElementCount = ioitarr.GetArrayElementCount();
+                    int arrayLowerBounds = ioitarr.GetArrayLowerBounds();
+                    for (int j = 0; j < arrayElementCount; ++j)
+                    {
+                        tnarr = tn.Nodes.Add(pObj.VarnameList.Names[i] + "[" + (j + arrayLowerBounds) + "]");
+                        SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
+                        if (pObj.VartypeList.Elements[i].OffsetInfoType.HasRelation())
+                        {
+                            var ioit = (IOffsetInfoType_Relation)pObj.VartypeList.Elements[i].OffsetInfoType;
+                            tnarr.Nodes.Add("Loading...");
+                            tnarr.Tag = ioit.GetRelationId();
+                            SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
+                        }
+                    }
+                    tn.Tag = (uint)0; // is array
+                }
+                else if (pObj.VartypeList.Elements[i].OffsetInfoType.IsMDim())
+                {
+                    var ioitarrm = (IOffsetInfoType_MDim)pObj.VartypeList.Elements[i].OffsetInfoType;
+                    uint[] MdimArrayElementCount = ioitarrm.GetMdimArrayElementCount();
+                    int[] MdimArrayLowerBounds = ioitarrm.GetMdimArrayLowerBounds();
+                    int dimCount = MdimArrayElementCount.Aggregate(0, (acc, act) => acc += (act > 0) ? 1 : 0);
+                    int[] indexes = new int[dimCount];
+                    bool stop = false;
+                    while (!stop)
+                    {
+                        string arrIdxStr = "";
+                        for (int j = dimCount - 1; j >= 0; --j)
+                        {
+                            arrIdxStr += (arrIdxStr != "" ? "," : "") + (indexes[j] + MdimArrayLowerBounds[j]);
+                        }
+                        tnarr = tn.Nodes.Add(pObj.VarnameList.Names[i] + "[" + arrIdxStr + "]");
+                        SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
+                        if (pObj.VartypeList.Elements[i].OffsetInfoType.HasRelation())
+                        {
+                            var ioit = (IOffsetInfoType_Relation)pObj.VartypeList.Elements[i].OffsetInfoType;
+                            tnarr.Nodes.Add("Loading...");
+                            tnarr.Tag = ioit.GetRelationId();
+                            SetImageKey(ref tnarr, pObj.VartypeList.Elements[i]);
+                        }
+                        ++indexes[0];
+                        for (int j = 0; j < dimCount; ++j)
+                        {
+                            if (indexes[j] >= MdimArrayElementCount[j])
+                            {
+                                if (j + 1 < dimCount)
+                                {
+                                    indexes[j] = 0;
+                                    ++indexes[j + 1];
+                                }
+                                else
+                                {
+                                    stop = true;
+                                }
+                            }
+                            else
+                            {
+                                break;
+                            }
+                        }
+                    }
+                    tn.Tag = (uint)0; // is array
+                }
+                else
+                {
+                    if (pObj.VartypeList.Elements[i].OffsetInfoType.HasRelation())
+                    {
+                        var ioit = (IOffsetInfoType_Relation)pObj.VartypeList.Elements[i].OffsetInfoType;
+                        tn.Nodes.Add("Loading...");
+                        tn.Tag = ioit.GetRelationId();
+                        SetImageKey(ref tn, pObj.VartypeList.Elements[i]);
+                    }
+                }
+            }
+        }
+
+        private void SetImageKey(ref TreeNode tn, PVartypeListElement vte)
+        {
+            string sk = "Tag";
+            switch (vte.Softdatatype)
+            {
+                case Softdatatype.S7COMMP_SOFTDATATYPE_BOOL:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_BBOOL:
+                    sk = "Boolean";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_INT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DINT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_ULINT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_LINT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_USINT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_UINT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_UDINT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_SINT:
+                // Derived types
+                case Softdatatype.S7COMMP_SOFTDATATYPE_BLOCKFB:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_BLOCKFC:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBANY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBDELAY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBTOD:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBCYCLIC:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBATT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_PORT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_RTM:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_PIP:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBPCYCLE:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBHWINT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBDIAG:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBTIMEERROR:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_OBSTARTUP:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DBANY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DBWWW:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DBDYN:
+                    sk = "Integer2";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_BYTE:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_WORD:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DWORD:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_LWORD:
+                // Derived types
+                case Softdatatype.S7COMMP_SOFTDATATYPE_AOMIDENT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_EVENTANY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_EVENTATT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_AOMLINK:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWANY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWIOSYSTEM:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWDPMASTER:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWDEVICE:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWDPSLAVE:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWIO:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWMODULE:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWSUBMODULE:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWHSC:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWPWM:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWPTO:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWINTERFACE:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_HWIEPORT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNANY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNPRG:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNOUC:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_CONNRID:
+                    sk = "Binary2";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_REAL:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_LREAL:
+                    sk = "Number2";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_CHAR:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_WCHAR:
+                    sk = "Char";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_STRING:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_WSTRING:
+                    sk = "Text";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DATE:
+                    sk = "Date";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_TIMEOFDAY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_LTOD:
+                    sk = "Time";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_TIME:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_LTIME:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_S5TIME:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_TIMER:
+                    sk = "Timer"; // Duration
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DATEANDTIME:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_LDT:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_DTL:
+                    sk = "DateTime";
+                    break;
+                case Softdatatype.S7COMMP_SOFTDATATYPE_ANY:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_POINTER:
+                case Softdatatype.S7COMMP_SOFTDATATYPE_REMOTE:
+                    sk = "Any";
+                    break;
+            }
+            if (vte.OffsetInfoType.HasRelation())
+            {
+                sk = "Structure";
+            }
+            tn.ImageKey = sk;
+            tn.SelectedImageKey = tn.ImageKey;
+        }
+
+        private string escapeTiaString(string str, bool isRootNode, bool isArray)
+        {
+            if (isRootNode) return '"' + str + '"';
+            Regex re = new Regex("(^[0-9]|[^0-9A-Za-z_])");
+            if (isArray)
+            {
+                Regex reArr = new Regex("^([^\"]*)(\\[[0-9, ]+\\])$");
+                Match m = reArr.Match(str);
+                if (!m.Success) return str;
+                if (re.Match(m.Groups[1].Value).Success) return '"' + m.Groups[1].Value + '"' + m.Groups[2].Value;
+                return str;
+            }
+            if (re.IsMatch(str)) return '"' + str + '"';
+            return str;
+        }
+
+        private void readTagBySymbol()
+        {
+            tbValue.Text = "";
+            tbSymbolicAddress.Text = "";
+
+            setStatus("loading...");
+            PlcTag tag = conn.getPlcTagBySymbol(tbSymbol.Text);
+            setStatus("connected");
+            if (tag == null) return;
+
+            tbSymbolicAddress.Text = tag.Address.GetAccessString();
+
+            PlcTags tags = new PlcTags();
+            tags.AddTag(tag);
+            if (tags.ReadTags(conn) != 0) return;
+            tbValue.Text = tag.ToString();
+        }
+
+        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
+        {
+            if (e.Node.Tag != null) return; // has relId
+
+            string name = "";
+            TreeNode tn = e.Node;
+            while (tn != null)
+            {
+                bool isArray = false;
+                string nodeText = tn.Text;
+                tn = tn.Parent;
+                if (tn != null && tn.Tag != null)
+                { // is array
+                    if ((uint)tn.Tag == 0)
+                    {
+                        isArray = true;
+                        tn = tn.Parent; // skip array parent
+                    }
+                }
+                if (tn != null && tn.Tag != null)
+                { // don't add in/out/merker area as tag
+                    uint relId = (uint)tn.Tag;
+                    if (relId == 0x90010000 || relId == 0x90020000 || relId == 0x90030000) tn = null;
+                }
+                name = escapeTiaString(nodeText, tn == null, isArray) + (name != "" ? "." : "") + name;
+            }
+            tbSymbol.Text = name;
+
+            readTagBySymbol();
+        }
+
+        private void btnRead_Click(object sender, EventArgs e)
+        {
+            if (tbSymbol.Text == "") return;
+
+            try
+            {
+                readTagBySymbol();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show("ERROR: " + ex.Message);
+            }
+        }
+
+        private void checkBox1_CheckedChanged(object sender, EventArgs e)
+        {
+                onlySecurePGOrPCAndHMI = checkBox1.Checked;
+        }
+    }
+}

S7CommPlusGUIBrowser/Form1.resx

@@ -125,7 +125,7 @@
         AAEAAAD/////AQAAAAAAAAAMAgAAAFdTeXN0ZW0uV2luZG93cy5Gb3JtcywgVmVyc2lvbj00LjAuMC4w
         LCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODkFAQAAACZTeXN0
         ZW0uV2luZG93cy5Gb3Jtcy5JbWFnZUxpc3RTdHJlYW1lcgEAAAAERGF0YQcCAgAAAAkDAAAADwMAAAC4
-        KgAAAk1TRnQBSQFMAgEBJAEAAagBAAGoAQABEAEAARABAAT/AQkBAAj/AUIBTQE2AQQGAAE2AQQCAAEo
+        KgAAAk1TRnQBSQFMAgEBJAEAAbgBAAG4AQABEAEAARABAAT/AQkBAAj/AUIBTQE2AQQGAAE2AQQCAAEo
         AwABQAMAAaADAAEBAQABCAYAASgYAAGAAgABgAMAAoABAAGAAwABgAEAAYABAAKAAgADwAEAAcAB3AHA
         AQAB8AHKAaYBAAEzBQABMwEAATMBAAEzAQACMwIAAxYBAAMcAQADIgEAAykBAANVAQADTQEAA0IBAAM5
         AQABgAF8Af8BAAJQAf8BAAGTAQAB1gEAAf8B7AHMAQABxgHWAe8BAAHWAucBAAGQAakBrQIAAf8BMwMA

S7CommPlusGUIBrowser/bin/Debug/license.lic

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<license id="fe76d797-6ecf-4e79-aa95-e2d30037a4c2" generate="2025-11-03T03:21:24.1952286" expiration="2025-11-10T03:21:24.1952286" type="Standard" AppName="Application" Fingerprint="0E963B0E20A1F6AC">
+  <name>EasyLicense</name>
+  <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
+    <SignedInfo>
+      <CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
+      <SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
+      <Reference URI="">
+        <Transforms>
+          <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
+        </Transforms>
+        <DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
+        <DigestValue>2ARv1/EpdnU8XLyDEGR1br2dBD1EhjPyTuIem87R0YM=</DigestValue>
+      </Reference>
+    </SignedInfo>
+    <SignatureValue>DB6lmvc3b0zI9Y7k+SvGegAroCRxNxbIOAZydZMz7EpFW8yNDy6iIU9uuUBIhSYdk4mEIoroxFA6Ra2Ha9Gc0bShMtJdnyBVw2My+9DNFf1iA0Nzf7qdEUfR3dd4I+w/awgGBfAqO67LxPrCva3i+AitHgSMywadcJ+45lKJDbE=</SignatureValue>
+  </Signature>
+</license>

S7CommPlusGUIBrowser/obj/Debug/S7CommPlusGUIBrowser.csproj.FileListAbsolute.txt

@@ -10,8 +10,3 @@ C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\o
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\obj\Debug\S7CommPlusGUIBrowser.csproj.CopyComplete
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\obj\Debug\S7CommPlusGUIBrowser.exe
 C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\obj\Debug\S7CommPlusGUIBrowser.pdb
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\bin\Debug\S7PublicKeys.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\bin\Debug\S7Utilities.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\bin\Debug\zlib.net.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\bin\Debug\S7CommPlusAuth.dll
-C:\Users\ShenX\Desktop\DiscoverDevices\S7CommPlusV3Driver\S7CommPlusGUIBrowser\bin\Debug\S7Family0.dll