OPC UA for Machine Vision – Part 1: Control, configuration management, recipe management, result management
8.2.8.4 ConfirmAll method
With this method, a client can confirm all currently active conditions of the server derived from VisionConditionType. In analogy to the Confirm method of the AcknowledgeableConditionType it expects a LocalizedText as a comment, not, however an EventId as this would not make sense for multiple events.