diff --git a/EasyEplanner.Tests/DFrm.Test.cs b/EasyEplanner.Tests/DFrm.Test.cs
index 665e1bb9..16ea4d97 100644
--- a/EasyEplanner.Tests/DFrm.Test.cs
+++ b/EasyEplanner.Tests/DFrm.Test.cs
@@ -110,7 +110,7 @@ public void AddDevParametersTest()
             Assert.Multiple(() =>
             {
                 Assert.AreEqual("Параметры", root_v.Nodes[0].Text);
-                Assert.AreEqual("Параметры времени выполнения", root_v.Nodes[1].Text);
+                Assert.AreEqual("Рабочие параметры", root_v.Nodes[1].Text);
                 Assert.AreEqual("P_ON_TIME Время включения", root_v.Nodes[0].Nodes[0].Text);
                 Assert.AreEqual("P_FB      Обратная связь", root_v.Nodes[0].Nodes[1].Text);
                 Assert.AreEqual("R_AS_NUMBER", root_v.Nodes[1].Nodes[0].Text);
diff --git a/src/Configuration/DeviceBindingReader.cs b/src/Configuration/DeviceBindingReader.cs
index 497722e2..98b3e130 100644
--- a/src/Configuration/DeviceBindingReader.cs
+++ b/src/Configuration/DeviceBindingReader.cs
@@ -575,9 +575,14 @@ private void SetBind(string description, List<string> actions,
             }
 
             var devicesGroupingByAS = devices
-                .GroupBy(dev => dev.RuntimeParameters
-                    .TryGetValue(IODevice.RuntimeParameter.R_AS_NUMBER, out var r_as_number) 
-                        ? int.Parse(r_as_number.ToString()) : -1)
+                .GroupBy(dev =>
+                    {
+                        dev.RuntimeParameters.TryGetValue(IODevice.RuntimeParameter.R_AS_NUMBER,
+                            out var r_as_number_str);        
+                        if (r_as_number_str != null && int.TryParse(r_as_number_str.ToString(), out var r_as_number))
+                            return r_as_number;
+                        return -1;
+                    })
                 .Where(r_as_dev => r_as_dev.Key != -1);
 
             foreach (var group in devicesGroupingByAS.Where(r_as_dev => r_as_dev.Count() > 1))
diff --git a/src/DFrm.cs b/src/DFrm.cs
index 3bf451a3..3dc33ef6 100644
--- a/src/DFrm.cs
+++ b/src/DFrm.cs
@@ -791,10 +791,11 @@ private void FillTypeNode(EplanDevice.IODevice dev, Node root,
                 dev.ObjectNumber, devTypeNode);
             Node devNode = MakeDeviceNode(devTypeNode, devObjectNode,
                 dev, deviceDescription);
-            bool isDevVisible = AddDevChannels(devNode, dev) ||
-               (displayParamsBtn.Checked && AddDevParametersAndProperties(devNode, dev));
-            
-            HideIncorrectDeviceTypeSubType(devNode, isDevVisible, countDev, 
+
+            bool isDevChannelsVisible = AddDevChannels(devNode, dev);
+            bool isDevParametersVisible = displayParamsBtn.Checked && AddDevParametersAndProperties(devNode, dev);
+
+            HideIncorrectDeviceTypeSubType(devNode, isDevChannelsVisible || isDevParametersVisible, countDev, 
                 dev);
         }
 
@@ -1647,7 +1648,7 @@ private void devicesTreeViewAdv_SizeChanged(object sender, EventArgs e)
 
         public const string ParametersNodeName = "Параметры";
 
-        public const string RuntimeParametersNodeName = "Параметры времени выполнения";
+        public const string RuntimeParametersNodeName = "Рабочие параметры";
 
         public const string PropertiesNodeName = "Свойства";
     }