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Support #549

Standard should clarify the relation between the PTP clock clockQuality signals and the timeQuality in TimeStamp

Added by Herbert Falk almost 2 years ago. Updated 5 months ago.

Status:
Resolved
Priority:
Normal
Category:
Standard clarification required
Start date:
Due date:
% Done:

0%

Estimated time:
ID:
30
Source:
IOP_2017/51
TF Unique ID:
30 # IOP_2017/51
WG10 Proposal:
Estimated Completion:
Discuss in Upcoming Meeting:
No
To discuss in WG10:
Short Proposal:

To send to Hubert for next 9-3 revision

Standard(s):

IEC 61850-9-3

Needs More Information:

Description

IEC/IEEE 61850-7-2 should clarify the relation between the PTP clock clockQuality signals and the timeQuality in TimeStamp.

E.g. “Clock Not Synchronized” refers to the slave clock, not to the grandmaster. The fact that the PTP grandmaster loses its GPS reference signal is not an indication that the IED clock is not synchronized, since the grandmaster could have an excellent stability. The total loss of PTP Sync messages during xx seconds should raise the “Clock Not synchronized” flag, depending on the slave clock’s quality.
This is best placed in IEC/IEEE 61850-9-3, but 7-2 should make a reference to it.


Proposal descriptions

Assigned to IEC 61850-9-3

#1

Updated by Vladan Cvejic almost 2 years ago

  • Subject changed from IEC/IEEE 61850-7-2 should clarify the relation between the PTP clock clockQuality signals and the timeQuality in TimeStamp. E.g. to Standard should clarify the relation between the PTP clock clockQuality signals and the timeQuality in TimeStamp
  • Description updated (diff)
  • Category set to Standard clarification required
  • Status changed from New to In Progress
  • Standard(s) changed from 3-Sep to IEC 61850-9-3
  • Discuss in Upcoming Meeting set to No

Checking done.

#2

Updated by Carlos Rodriguez del Castillo 5 months ago

  • Status changed from In Progress to Resolved
  • Assignee set to Fred Steinhauser
  • Proposal descriptions updated (diff)

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