1237   State machine with enhanced security not correct for Test-Blocked

Created: 09 Apr 2014

Status: Future Improvement

Part: Part 7-2 (2010; Edition 2)


Page: 163 & 164

Clause: 20.3


Issue: In case the LN directly involved in the control service (e.g. CSWI) is in "Test-Blocked" mode, the state machine indicated that a negative response shall be given with the add cause "Blocked by Mode"
That’s not correct, because the whole command sequence will run through successfully, except that the primary equipment does not get operated.

Proposal: From that perspective the add cause "Blocked by mode" in case of Beh "Test-Blocked" should be replaced by a negative Command Termination with add cause "Time limit over", in case of enhanced security and after the “Wait for PosChange time-out) is expired.

Discussion Created Status
further discussion with TF 7-5 required. 09 Oct 14 Future Improvement


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