---
title: "Creating a SOAP Tag"
description: "Configure an RDM parameter as a tag"
source_url: https://ai-ops.com/docs/tags/creating-soap
---

# Creating a SOAP Tag

After [creating a tag](https://ai-ops.com/docs/tags/creating-getting-started.md) on a SOAP (RDM) device, you need to tell Koios which RDM device and parameter to read. You can configure these fields during creation or afterwards on the tag's **Configuration** tab.

> [!TIP] Use the RDM browser to discover parameters
> On the Configuration tab, click **Browse** to connect to the RDM service and explore its devices and parameters. Select a parameter to auto-populate both fields below.

## Protocol Fields

### RDM Device

The identifier of the device within the RDM system. RDM services manage multiple devices, and this field identifies which one to query.

- Example: `Device001`, `AHU-3`

### RDM Parameter

The name of the parameter to read from the RDM device. Each parameter represents a specific data point — a sensor reading, setpoint, or status value.

- Example: `SupplyAirTemp`, `FanSpeed`, `CoolValvePos`

## Using the RDM Browser

The RDM browser connects to the SOAP service and lets you explore its device and parameter hierarchy.

1. Open the tag's **Configuration** tab and click **Browse**
2. The browser lists all devices available in the RDM service
3. Expand a device to see its available parameters
4. Select the parameter you want — the **RDM Device** and **RDM Parameter** are auto-populated
5. Click **Apply** to save the selection

> [!NOTE] The device must be reachable to browse
> The browser connects to the RDM SOAP service. The device must be powered on and reachable on the network, but it does not need to be enabled in Koios.

## After Configuration

1. **Save** the tag configuration
2. **Test the tag** — click `Test` to verify Koios can read the parameter's value (see [Testing a Tag](https://ai-ops.com/docs/tags/troubleshooting.md#testing-a-tag))
3. **Enable the tag** — flip the enable switch to start collecting data

> [!TIP] Enable the device first
> Tags only collect data when their parent device is also enabled and running.