This highest class of severity is used for error messages associated with problems that need human interaction. This kind of errors cannot automatically be solved, an operator has to do something in the physical world before the operation can go on. Acknowledgement and confirmation is mandatory for this class.

Table 128 – Information Elements

Information Type

Severity

needs Acknowledge

needs Confirmation

OPC UA Type

Persistent Error

801...1000

yes

yes

VisionPersistentErrorConditionType

Error

601...800

yes

optional

VisionErrorConditionType

Warning

401...600

optional

optional

VisionWarningConditionType

Information

201...400

no

no

VisionInformationEventType

Diagnostic Information

1…200

no

no

VisionDiagnosticInfoEventType