# OpcClient.ReadNodeHistoryProcessed 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 |
|---|---|
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-double-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, OpcNodeId)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-double-opc-uafx-opcnodeid) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-string) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-string) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-double-system-string) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, string)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-double-system-string) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-double-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-double-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-string-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-string-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-double-system-string-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, string, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-double-system-string-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-int32-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-int32-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-double-system-int32-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, int, int)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-double-system-int32-system-int32) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-opc-uafx-client-opcreadnodehistory) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-opc-uafx-client-opcreadnodehistory) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcnodeid-system-double-opc-uafx-client-opcreadnodehistory) |  |
| [ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, OpcReadNodeHistory)](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodehistoryprocessed#readnodehistoryprocessed-system-datetime-system-datetime-opc-uafx-opcaggregatetype-system-double-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) |  |

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, OpcNodeId)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    OpcNodeId nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    nodeId As OpcNodeId) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, OpcNodeId)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    OpcNodeId nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    nodeId As OpcNodeId) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, OpcNodeId)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    double aggregateInterval,
    OpcNodeId nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    aggregateInterval As Double,
    nodeId As OpcNodeId) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, OpcNodeId)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    double aggregateInterval,
    OpcNodeId nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    aggregateInterval As Double,
    nodeId As OpcNodeId) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, string)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    string nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    nodeId As String) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, string)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    string nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    nodeId As String) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, string)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    double aggregateInterval,
    string nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    aggregateInterval As Double,
    nodeId As String) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, string)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    double aggregateInterval,
    string nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    aggregateInterval As Double,
    nodeId As String) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `nodeId` | [String](https://learn.microsoft.com/dotnet/api/system.string) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    int nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    nodeId As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

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

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    int nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    nodeId As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    double aggregateInterval,
    int nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    aggregateInterval As Double,
    nodeId As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

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

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    double aggregateInterval,
    int nodeId)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    aggregateInterval As Double,
    nodeId As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, string, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    string nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    nodeId As String,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, string, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    string nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    nodeId As String,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, string, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    double aggregateInterval,
    string nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    aggregateInterval As Double,
    nodeId As String,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, string, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    double aggregateInterval,
    string nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    aggregateInterval As Double,
    nodeId As String,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, int, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    int nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    nodeId As Integer,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

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

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, int, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    int nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    nodeId As Integer,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, int, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    double aggregateInterval,
    int nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    aggregateInterval As Double,
    nodeId As Integer,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, int, int)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    double aggregateInterval,
    int nodeId,
    int namespaceIndex)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    aggregateInterval As Double,
    nodeId As Integer,
    namespaceIndex As Integer) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `nodeId` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |
| `namespaceIndex` | [Int32](https://learn.microsoft.com/dotnet/api/system.int32) |  |

**Returns**

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

**Exceptions**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, OpcReadNodeHistory)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    OpcReadNodeHistory command)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    command As OpcReadNodeHistory) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

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

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, OpcReadNodeHistory)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    OpcReadNodeHistory command)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    command As OpcReadNodeHistory) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcNodeId, double, OpcReadNodeHistory)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcNodeId aggregateType,
    double aggregateInterval,
    OpcReadNodeHistory command)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcNodeId,
    aggregateInterval As Double,
    command As OpcReadNodeHistory) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcNodeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeid/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;

## ReadNodeHistoryProcessed(DateTime, DateTime, OpcAggregateType, double, OpcReadNodeHistory)

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

```csharp
public IEnumerable<OpcHistoryValue> ReadNodeHistoryProcessed(
    DateTime startTime,
    DateTime endTime,
    OpcAggregateType aggregateType,
    double aggregateInterval,
    OpcReadNodeHistory command)
```

</div>

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

```vbnet
Public Function ReadNodeHistoryProcessed(
    startTime As Date,
    endTime As Date,
    aggregateType As OpcAggregateType,
    aggregateInterval As Double,
    command As OpcReadNodeHistory) As IEnumerable(Of OpcHistoryValue)
```

</div>

**Parameters**

| Name | Type | Description |
|---|---|---|
| `startTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `endTime` | [DateTime](https://learn.microsoft.com/dotnet/api/system.datetime) |  |
| `aggregateType` | [OpcAggregateType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaggregatetype/) |  |
| `aggregateInterval` | [Double](https://learn.microsoft.com/dotnet/api/system.double) |  |
| `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;[OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/)&gt;