943 control model change to "local" when TimeActivatedOperate is waiting
Created: 12 Nov 2012
Status: In Force (green)
Part: Part 7-2 (2010; Edition 2)
Page: P159, 161, 163, 164
Clause: 20. Control class model
Paragraph: Figure 38, 40, 41, 42
Category: Issue for edition 2 of this part
This issue rose up in one UCA testing meeting: what if a TimeActivatedOperate is waiting for timer expiration while the control mode of the control object is changed to local. e.g. by a "local/remote" toggle? It looks like in the standard the local/remote check, as operative check, is only checked once when receiving a TimeActivatedOperate command.
TISSUE 783 has similar concern, but not consider above use case. Proposal: TimeActivatedOperate shall fail immediately when control of the object is changed to "local". i.e. the local/remote check shall be conduct every CPU calculation cycle.
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