The OPC UA HDA Server Workflow

This topic provides the high-level steps to get started with the Historian OPC UA HDA server. These steps are required only for the initial setup. After you perform these steps, you can use an OPC UA HDA client to retrieve and analyze the historical data.

Step Number	Step	Notes
1	Install Historian.	This step is required.
2	Install the OPC UA HDA Server.	This step is required. You can install Historian and the OPC UA HDA server either on the same machine or on different machines.
3	Configure the OPC UA HDA server settings.	This step is required only if you want to change the default settings or the values you provided while installing the OPC UA HDA server.
4	Install an OPC UA HDA client.	This step is required only if you want to use a third-party OPC UA HDA client.
5	Connect the OPC UA HDA server and the OPC UA HDA client.	This step is required only if you want to use a third-party OPC UA HDA client. In this step, the server and the client exchange certificates to establish a secure connection.
6	Authenticate the user to connect to the OPC UA HDA server.	This step is required only if you want to use a third-party OPC UA HDA client. You can use authentication based on user credentials or a certificate. Anonymous authentication is not supported.