diff --git a/EasyEplanner.Tests/EplanDevice.Test/Device.Test.cs b/EasyEplanner.Tests/EplanDevice.Test/Device.Test.cs
index 9680dc0a..de573c79 100644
--- a/EasyEplanner.Tests/EplanDevice.Test/Device.Test.cs
+++ b/EasyEplanner.Tests/EplanDevice.Test/Device.Test.cs
@@ -1,4 +1,5 @@
-using NUnit.Framework;
+using EplanDevice;
+using NUnit.Framework;
 
 namespace Tests.EplanDevices
 {
@@ -195,5 +196,14 @@ public void GetChannels_Test(string channelName, string comment, int expectedCha
             var channels = dev.GetChannels(IO.IOModuleInfo.ADDRESS_SPACE_TYPE.AOAIDODI, channelName, comment);
             Assert.AreEqual(expectedChannelsCount, channels.Count);
         }
+
+        [TestCase("OBJ1" ,"V1")]
+        [TestCase("" , "V1")]
+        public void DeviceDesignationTest(string obj, string expectedDesignation)
+        {
+            var dev = new V($"{obj}V1", $"+{obj}-V1", "", 1, "OBJ", 1, "");
+
+            Assert.AreEqual("V1", dev.DeviceDesignation);
+        }
     }
 }
diff --git a/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/BaseObject.Test.cs b/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/BaseObject.Test.cs
index bd3a91fb..114891c2 100644
--- a/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/BaseObject.Test.cs
+++ b/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/BaseObject.Test.cs
@@ -501,7 +501,7 @@ private void SetupDeviceManagerMock()
             var DO1 = new DO("DO1", "DO1", "desc", 1, "", 0);
             var LS1 = new LS("LS1", "LS1", "desc", 1, "", 0, "");
             var TANK1V1 = new V("TANK1V1", "+TANK1-V1", "desc", 1, "TANK", 1, "");
-            var TANK2V1 = new V("TANK2V1", "+TANK2V-1", "desc", 1, "TANK", 2, "");
+            var TANK2V1 = new V("TANK2V1", "+TANK2-V1", "desc", 1, "TANK", 2, "");
 
 
             deviceManagerMock.Setup(m => m.GetDeviceByEplanName("LS1")).Returns(LS1);
diff --git a/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/UniversalObject.Test/Actions.Test/Action.Test.cs b/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/UniversalObject.Test/Actions.Test/Action.Test.cs
index 5fc7c2bd..9f41d66c 100644
--- a/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/UniversalObject.Test/Actions.Test/Action.Test.cs
+++ b/EasyEplanner.Tests/TechObject.Test/ObjectsTree.Test/UniversalObject.Test/Actions.Test/Action.Test.cs
@@ -1371,6 +1371,7 @@ private static EplanDevice.IDevice MakeMockedDevice(string objName,
             EplanDevice.DeviceSubType deviceSubType, int devNumber, string devName)
         {
             var devMock = new Mock<EplanDevice.IDevice>();
+            devMock.SetupGet(x => x.DeviceDesignation).Returns($"{devType}{devNumber}");
             devMock.SetupGet(x => x.ObjectName).Returns(objName);
             devMock.SetupGet(x => x.ObjectNumber).Returns(objNum);
             devMock.SetupGet(x => x.DeviceType).Returns(devType);
diff --git a/src/Device/Device.cs b/src/Device/Device.cs
index cfc6eb29..a9ba2cca 100644
--- a/src/Device/Device.cs
+++ b/src/Device/Device.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 
 namespace EplanDevice
 {
@@ -176,6 +177,8 @@ public string EplanName
             }
         }
 
+        public string DeviceDesignation => EplanName.Split('-').LastOrDefault() ?? string.Empty;
+
         public long DeviceNumber
         {
             get
diff --git a/src/Device/IDevice.cs b/src/Device/IDevice.cs
index 2ee00215..f162c691 100644
--- a/src/Device/IDevice.cs
+++ b/src/Device/IDevice.cs
@@ -12,6 +12,12 @@ public interface IDevice
         /// </summary>
         string EplanName { get; }
 
+        /// <summary>
+        /// Обозначение устройства без объекта. Пример: V1 <br/>
+        /// Используется если обозначение устройства не соответствует типу: "FC1" (подтип "C") 
+        /// </summary>
+        string DeviceDesignation { get; }
+
         /// <summary>
         /// Описание устройства.
         /// </summary>
diff --git a/src/TechObject/Base/Properties/ActionParameter.cs b/src/TechObject/Base/Properties/ActionParameter.cs
index 116d0859..99d6f008 100644
--- a/src/TechObject/Base/Properties/ActionParameter.cs
+++ b/src/TechObject/Base/Properties/ActionParameter.cs
@@ -75,11 +75,11 @@ public void ModifyDevName(int newID, int oldID, string objName)
 
             if (dev.ObjectNumber == newID && oldID != -1)
             {
-                SetNewValue($"{objName}{oldID}{dev.DeviceType}{dev.DeviceNumber}");
+                SetNewValue($"{objName}{oldID}{dev.DeviceDesignation}");
             }
             if (oldID == -1 || oldID == dev.ObjectNumber)
             { 
-               SetNewValue($"{objName}{newID}{dev.DeviceType}{dev.DeviceNumber}");
+               SetNewValue($"{objName}{newID}{dev.DeviceDesignation}");
             }
         }
 
diff --git a/src/TechObject/ObjectsTree/UniversalObject/Actions/Action.cs b/src/TechObject/ObjectsTree/UniversalObject/Actions/Action.cs
index 502895fe..fab2183d 100644
--- a/src/TechObject/ObjectsTree/UniversalObject/Actions/Action.cs
+++ b/src/TechObject/ObjectsTree/UniversalObject/Actions/Action.cs
@@ -304,11 +304,11 @@ private string ModifyDevNameChangeTechNumber(string techObjectName, int index, i
             //Для устройств в пределах объекта меняем номер объекта.
             if (objNum == newID && oldID != -1)
             { // 1 -> 2 - COAG2V1 --> COAG1V1
-                return $"{objName}{oldID}{device.DeviceType}{device.DeviceNumber}";
+                return $"{objName}{oldID}{device.DeviceDesignation}";
             }
             if (oldID == -1 || oldID == objNum)
             { // COAG1V1 --> COAG(new_id)V1; COAGxV1 -> COAG1V1, COAG2V1 ...
-                return $"{objName}{newID}{device.DeviceType}{device.DeviceNumber}";
+                return $"{objName}{newID}{device.DeviceDesignation}";
             }
 
             return string.Empty;