Configure historical sources

To use a Trend Client to chart historical data, you must connect to a data source. You can connect to a Historian or an InTouch LGH file.

You can use one of the following authentication modes when connecting to AVEVA Historian:

• Windows Integrated Security (uses the running process credentials)

• Alternate Windows account (You can use the credentials stored in the Credential Manager. You can also specify the domain name, user name, and password).

  The alternate credentials are used to do a Windows impersonation before connecting to the database using Windows Integrated Security.

• SQL Server Authentication

  You can use the credentials stored in the Credential Manager. You specify the user name and password of a SQL Server account. These credentials are used to log in to the database.

  Note: Ask your administrator what type of user account you must use to access the server.

Server connections are specific to the instance of the client and must be re-defined for each instance.

When you start a Application Server application, you are not automatically logged on to every server that you configured before. You are only logged on to a server when a pen is configured to use that server.

You need not run as an administrative user to operate in run time within an InTouch application. The user access control is enabled for you on all supported Windows operating systems.