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Home » Eclipse Projects » 4DIAC - Framework for Distributed Industrial Automation and Control » 4diac IEC 61499 Execution Sequence(4diac IEC 61499 Execution Sequence )
4diac IEC 61499 Execution Sequence [message #1839603] Wed, 24 March 2021 13:24 Go to next message
Bill Lydon is currently offline Bill LydonFriend
Messages: 3
Registered: March 2021
Junior Member
If I understand the architecture correctly, in the abstract IEC 61499 is deterministic since the execution prioritizing mechanism are event triggers to initiate operations but this does not address performance and guaranteed response.

If there are parallel function blocks events that are triggered by the same signal what is the execution sequence and priority?
Re: 4diac IEC 61499 Execution Sequence [message #1839633 is a reply to message #1839603] Wed, 24 March 2021 20:30 Go to previous message
Alois Zoitl is currently offline Alois ZoitlFriend
Messages: 1214
Registered: January 2014
Senior Member
For that IEC 61499 defines dedicated event split FBs. These FBs have an order in which an incoming event is distributed. This gives control to the developer for defining execution order.
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