In this state, the system is characterized by the following properties:

  • The system has stopped all operations
  • The system can safely be powered down (e.g. all files are closed; all resources are released, …)
  • The OPC UA server shall still be running to allow for a transition to state Preoperational.

This state can be reached from any other state either by an automatic transition or by calling the Halt method. Calling the Halt method in this state will not have an effect.

From this state, only Preoperational state can be reached, either by an automatic transition or by calling the Reset method.

This state can be a composite state with an optional VisionStepModelStateMachineType SubStateMachine.