# Connect devices via OPC UA ## About OPC UA OPC UA (Unified Architecture) is a modern standard that describes data transmission in industrial networks. It provides secure and reliable communication between devices and is also hardware- and platform-independent, which enables data exchange between devices with different operating systems. ## Features A special feature of OPC UA is that no formats are needed to convert incoming data. Instead, incoming data is mapped directly to the individual assets. ## Procedure 1. A[ ↗ endpoint is created](/collection/english-v14/connectivity-as-a-service/connect-devices-with-abb-buildingpro/connect-devices-via-opc-ua/create-and-configure-an-endpoint.md) and configured 2. On this endpoint, a [↗ subscription](/collection/english-v14/connectivity-as-a-service/connect-devices-with-abb-buildingpro/connect-devices-via-opc-ua/create-and-configure-an-endpoint.md#uebersicht) created. 3. In this subscription, one or more [↗ asset types](broken://pages/9a6e99aacbd1c7c71f737ac1647fc5a0c9991dfc) selected 4. One or more assets of this type are assigned to the selected asset type 5. The values coming in via OPC UA are assigned directly to the respective asset attributes. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.buildings.ability.abb/collection/english-v14/connectivity-as-a-service/connect-devices-with-abb-buildingpro/connect-devices-via-opc-ua.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.