1466   Switch between the modes if IED is in WaitForExecution state

This tissue has following status: blue

Created: 18 Nov 2015

Links:

Page: 159-161-163-164

Clause: 20.2-20.3

Paragraph:

Category: No impact on this part

Issue: In 7-2 part, for Direct Execute control, when a control command is received, all command parameters are verified at "Perform Test" state.
And for SBO control, when a select command is received, all command parameters are verified at "Perform Test" state too.

But if IED is in "WaitForExecution" state and the same time it switchs its mode ("ON" -> "TEST" or "TEST" -> "ON"), what is the behavior of the IED?

Shall we abort the command with Oper_resp- and Addcause "Blocked by Mode"? Or shall we let the command running?

Proposal:

Discussion Created Status
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Ballot until Editor
The standard is quite clear: if you are in test mode and you get a command which is NOT a test command, the server issues a negative response (part 7-4, table A.2) with 'Blocked by Mode' (part 7-2, table 54). 25 Nov 15 blue

 

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