QuickOPC-UA Timeout Settings

From OPC Labs Knowledge Base
Revision as of 12:07, 29 July 2021 by User (talk | contribs)


Parameter[1] Default value[1] Description
in UAClientSessionParameters
CloseTimeout 10 000 A timeout for closing the session (in milliseconds).
EndpointSelectionTimeout 30 000 A timeout for endpoint selection (in milliseconds).
OperationTimeout[2] 120 000 Timeout used when sending requests (in milliseconds).
SessionConnectTimeout 60 000 A session connect timeout (in milliseconds).
SessionTimeout 60 000 A session timeout (in milliseconds).
SessionTimeoutDebug 600 000 A session timeout used when a debugger is attached (in milliseconds).
in UADiscoveryParameters
DiscoveryTimeout 15 000 A maximum time a server discovery can take (in milliseconds).
in SDK configuration
(none)[2]

Documentation on how to modify the parameters that are set in the SDK configuration: User's Guide: OPC UA Application Configuration

See also: https://www.opclabs.com/forum/ua-connections/891-timeouts-reconnections

  1. 1.0 1.1 The parameter names and default values were verified with QuickOPC 2020.2.
  2. 2.0 2.1 Before QuickOPC 2021.3, the OperationTimeout was configurable in the SDK configuration.