# OpcClient.ReadNodeHistoryModified Method

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">OpcClient</a></dd>
<dt>Namespace</dt>
<dd><a href="../namespaces/opc.uafx.client">Opc.UaFx.Client</a></dd>
<dt>Assembly</dt>
<dd>Opc.UaFx.Advanced.dll</dd>
<dt>Package</dt>
<dd>Opc.UaFx.Advanced v2.59.0</dd>
<dt>Members</dt>
<dd><a href="./members">OpcClient Members</a></dd>
<dt>Also in</dt>
<dd>Opc.UaFx.Client</dd>
</dl>

<span class="api-meta">24 overloads</span>

| Overload | Description |
|---|---|
| [ReadNodeHistoryModified(OpcNodeId, OpcReadHistoryDetails)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-opc-uafx-opcnodeid-opc-uafx-opcreadhistorydetails)<span class="api-meta">since v2.23</span> |  |
| [ReadNodeHistoryModified(int, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-int32-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryModified(DateTime?, int, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-int32-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, int, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-int32-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryModified(int, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-int32-system-string) |  |
| [ReadNodeHistoryModified(DateTime?, int, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-int32-system-string) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, int, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-int32-system-string) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-string) |  |
| [ReadNodeHistoryModified(int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-int32-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-int32-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-int32-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-int32) |  |
| [ReadNodeHistoryModified(int, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-int32-system-string-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, int, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-int32-system-string-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, int, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-int32-system-string-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-string-system-int32) |  |
| [ReadNodeHistoryModified(int, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-int32-system-int32-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, int, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-int32-system-int32-system-int32) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, int, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-int32-system-int32-system-int32) |  |
| [ReadNodeHistoryModified(int, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-int32-opc-uafx-client-opcreadnodehistory) |  |
| [ReadNodeHistoryModified(DateTime?, int, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-int32-opc-uafx-client-opcreadnodehistory) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, int, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-system-int32-opc-uafx-client-opcreadnodehistory) |  |
| [ReadNodeHistoryModified(DateTime?, DateTime?, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistorymodified#readnodehistorymodified-system-nullable-of-system-datetime-system-nullable-of-system-datetime-opc-uafx-client-opcreadnodehistory) |  |

**Exceptions (all overloads)**

| Exception | Condition |
|---|---|
| [ArgumentNullException](https://learn.microsoft.com/dotnet/api/system.argumentnullexception) |  |
| [InvalidOperationException](https://learn.microsoft.com/dotnet/api/system.invalidoperationexception) |  |
| [OpcException](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcexception/) |  |
| [ObjectDisposedException](https://learn.microsoft.com/dotnet/api/system.objectdisposedexception) |  |

## ReadNodeHistoryModified(OpcNodeId, OpcReadHistoryDetails)

<span class="api-meta">since v2.23</span>

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    OpcNodeId nodeId,
    OpcReadHistoryDetails details)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    nodeId As OpcNodeId,
    details As OpcReadHistoryDetails) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `nodeId` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |
| `details` | [OpcReadHistoryDetails](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcreadhistorydetails/) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(int, OpcNodeId)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    int numberOfValues,
    OpcNodeId nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    numberOfValues As Integer,
    nodeId As OpcNodeId) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, int, OpcNodeId)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    int numberOfValues,
    OpcNodeId nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    numberOfValues As Integer,
    nodeId As OpcNodeId) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, int, OpcNodeId)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    int numberOfValues,
    OpcNodeId nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    numberOfValues As Integer,
    nodeId As OpcNodeId) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, OpcNodeId)

<div class="api-signature" data-lang="csharp">

```csharp
public IEnumerable<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    OpcNodeId nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    nodeId As OpcNodeId) As IEnumerable(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `nodeId` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |

**Returns**

[IEnumerable](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(int, string)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    int numberOfValues,
    string nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    numberOfValues As Integer,
    nodeId As String) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, int, string)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    int numberOfValues,
    string nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    numberOfValues As Integer,
    nodeId As String) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, int, string)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    int numberOfValues,
    string nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    numberOfValues As Integer,
    nodeId As String) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, string)

<div class="api-signature" data-lang="csharp">

```csharp
public IEnumerable<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    string nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    nodeId As String) As IEnumerable(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

[IEnumerable](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(int, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    int numberOfValues,
    int nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    numberOfValues As Integer,
    nodeId As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, int, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    int numberOfValues,
    int nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    numberOfValues As Integer,
    nodeId As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, int, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    int numberOfValues,
    int nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    numberOfValues As Integer,
    nodeId As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IEnumerable<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    int nodeId)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    nodeId As Integer) As IEnumerable(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IEnumerable](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(int, string, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    int numberOfValues,
    string nodeId,
    int namespaceIndex)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    numberOfValues As Integer,
    nodeId As String,
    namespaceIndex As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, int, string, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    int numberOfValues,
    string nodeId,
    int namespaceIndex)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    numberOfValues As Integer,
    nodeId As String,
    namespaceIndex As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, int, string, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    int numberOfValues,
    string nodeId,
    int namespaceIndex)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    numberOfValues As Integer,
    nodeId As String,
    namespaceIndex As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, string, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IEnumerable<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    string nodeId,
    int namespaceIndex)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    nodeId As String,
    namespaceIndex As Integer) As IEnumerable(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IEnumerable](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(int, int, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    int numberOfValues,
    int nodeId,
    int namespaceIndex)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    numberOfValues As Integer,
    nodeId As Integer,
    namespaceIndex As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, int, int, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    int numberOfValues,
    int nodeId,
    int namespaceIndex)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    numberOfValues As Integer,
    nodeId As Integer,
    namespaceIndex As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(DateTime?, DateTime?, int, int, int)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    int numberOfValues,
    int nodeId,
    int namespaceIndex)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    numberOfValues As Integer,
    nodeId As Integer,
    namespaceIndex As Integer) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

**Exceptions**

| Exception | Condition |
|---|---|
| [ArgumentException](https://learn.microsoft.com/dotnet/api/system.argumentexception) |  |

## ReadNodeHistoryModified(int, OpcReadNodeHistory)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    int numberOfValues,
    OpcReadNodeHistory command)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    numberOfValues As Integer,
    command As OpcReadNodeHistory) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `command` | [OpcReadNodeHistory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcreadnodehistory/) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

## ReadNodeHistoryModified(DateTime?, int, OpcReadNodeHistory)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    int numberOfValues,
    OpcReadNodeHistory command)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    numberOfValues As Integer,
    command As OpcReadNodeHistory) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `command` | [OpcReadNodeHistory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcreadnodehistory/) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

## ReadNodeHistoryModified(DateTime?, DateTime?, int, OpcReadNodeHistory)

<div class="api-signature" data-lang="csharp">

```csharp
public IOpcNodeHistoryNavigator<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    int numberOfValues,
    OpcReadNodeHistory command)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    numberOfValues As Integer,
    command As OpcReadNodeHistory) As IOpcNodeHistoryNavigator(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `numberOfValues` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `command` | [OpcReadNodeHistory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcreadnodehistory/) |  |

**Returns**

[IOpcNodeHistoryNavigator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.iopcnodehistorynavigator-1/)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;

## ReadNodeHistoryModified(DateTime?, DateTime?, OpcReadNodeHistory)

<div class="api-signature" data-lang="csharp">

```csharp
public IEnumerable<OpcModifiedHistoryValue> ReadNodeHistoryModified(
    DateTime? startTime,
    DateTime? endTime,
    OpcReadNodeHistory command)
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
Public Function ReadNodeHistoryModified(
    startTime As Date?,
    endTime As Date?,
    command As OpcReadNodeHistory) As IEnumerable(Of OpcModifiedHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `endTime` | [Nullable](https://learn.microsoft.com/dotnet/api/system.nullable-1)&lt;[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)&gt; |  |
| `command` | [OpcReadNodeHistory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcreadnodehistory/) |  |

**Returns**

[IEnumerable](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1)&lt;[OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/)&gt;