---
title: DeviceHub Agent
slug: bhdo/devicehub-agent
createdAt: 2022-07-05T13:35:45.000Z
---

Review the following information for setting up and configuring the DeviceHub Agent driver.

:::hint{type="warning"}
**Note:** DeviceHub Agent is no longer supported.
:::

# Set Up the DeviceHub Agent

See [Set Up the DeviceHub Agent](docId:0JOA5y8TGmv9_NzllYIWh) to review how to set up and configure the DeviceHub Agent driver. 

# DeviceHub Agent Driver Settings in Belden Horizon Data Operations

If you review or edit the settings of the OSI Agent device, refer to the following parameters. 

| Parameter                | Value                                         |
| ------------------------ | --------------------------------------------- |
| **Type**                 | OPC UA                                        |
| **Driver**               | DeviceHub Agent                               |
| **Network Address**      | If unsure, leave the default value of 0.0.0.0 |
| **Network Port**         | 41250                                         |
| **Data Validity Period** | 60                                            |

If you [Add Tags](docId\:lgFx30uW0cmntR3KVMM4q) in Belden Horizon Data Operations, refer to the following supported data types and tag parameters. There isn't a list of available register names.

## Supported Data Types

- `Word` 
- `StrArg` 
- `Null`
- `Single`
- `Byte`
- `RefToNull`
- `Mask`
- `ArrayOfDouble`
- `ArrayOfString`
- `RefToEmpty`
- `RefToSmallInt`
- `RefToMask`
- `SmallInt`
- `ShortInt`
- `RefToDate`
- `RefToDispatch`
- `Date`
- `Dispatch`
- `ArrayOfNull`
- `ArrayOfBoolean`
- `RefToVariant`
- `RefToString`
- `LongWord`
- `ArrayOfInteger`
- `ArrayOfDispatch`
- `Error`
- `ArrayOfUnknown`
- `ArrayOfLongWord`
- `ArrayOfAny`
- `String`
- `Any`
- `ArrayOfOleString`
- `RefToSingle`
- `RefToUnknown`
- `Double`
- `OleString`
- `RefToOleString`
- `Unknown`
- `ArrayOfInt64`
- `ArrayOfMask`
- `RefToInteger`
- `Currency`
- `Variant`
- `ArrayOfSmallInt`
- `ArrayOfVariant`
- `ArrayOfShortInt`
- `ArrayOfWord`
- `Empty`
- `ArrayOfEmpty`
- `ArrayOfStrArg`
- `RefToByte`
- `Integer`
- `Boolean`
- `ArrayOfDate`
- `RefToError`
- `RefToBoolean`
- `ArrayOfSingle`
- `ArrayOfCurrency`
- `ArrayOfError`
- `RefToDouble`
- `RefToCurrency`
- `UnknownType`
- `Int64`
- `ArrayOfByte`

## Tag Parameters

- **Name**: Enter the case-sensitive register name exactly as it is defined in the PLC. 
- **Value Type**: Select a data type from the drop-down list. 
- **Polling Interval**: Enter a value in seconds. This determines how often the tag should poll the register for data.
- **Tag Name**: Enter a name for the tag.
- **Description** (Optional): Enter a description for the tag.  
- **Tag Formula**: Enter a formula for the tag to process the generated data. Two variables are permitted: `value` (current tag value) and `timestamp` (current tag UNIX time in milliseconds). The following math functions are available:
  - sin
  - cos
  - sqrt
  - tan
  - power
  - log
  - exp
- **Only Publish on Change of Value**: Select the checkbox to customize NATS messages to be published only when the *value *parameter changes from a previous value to a new one. *Change of Value* only applies to boolean, numeric (such as int or float), and simple string data types. It does not apply to complex types, such as JSON or array. Poll-once topics will not be affected by *Change of Value* settings. These topics will still only see a single message.
- **Meta Data**: Metadata summarizes basic information about data. This feature allows you to define key-value pair data for the device output payload later on. It can then be used to find, use, and reuse particular instances of data.