About session expiration

FactoryTalk ViewPoint uses session expiration to automatically release licenses in case a user has unexpectedly disconnected or is away for an extended period.

A session expires when:

• The web browser does not respond to a status ping within the license timeout period
• The user does not change or refresh the display within the inactivity timeout period

When a session expires, the web browser displays "Session has expired". To reconnect to the FactoryTalk ViewPoint server, the user must refresh the web page and log in again.

Status Pings and License Timeout

By default, the FactoryTalk ViewPoint client sends a status ping to the web server once every 10 seconds. If the web server does not receive the status ping within the license timeout period, the session is terminated. The license timeout period is 30 seconds.

Common causes of license timeouts are network failure, unexpected power loss, or an application crash.

Inactivity Timeout

By default, the FactoryTalk ViewPoint server has an inactivity timeout of 20 minutes. If a user does not change or refresh a display within the inactivity timeout, the session expires and the license is returned to the pool.

Specify the inactivity timeout settings on the Server Settings page.

For more information, see Knowledgebase Article 63555.

See also

About activation and licenses

FactoryTalk ViewPoint Server Settings

Keywords: license, timeout, session, inactivity