Project

General

Profile

Improvement #5955

Indicate typical SIUnit for every DO with CDC MV would help users + Add a dedicated attribute in NSD files instead of having it in the description ?

Added by Aurelie Dehouck 3 months ago. Updated about 1 month ago.

Status:
Resolved
Priority:
Normal
Category:
Standard clarification required
Start date:
08/26/2022
Due date:
10/25/2022 (33 days late)
% Done:

0%

Estimated time:
ID:
Source:
EDF
TF Unique ID:
WG10 Proposal:
Estimated Completion:
Discuss in Upcoming Meeting:
No
To discuss in WG10:
No
Short Proposal:
Standard(s):
Needs More Information:

Description

In IEC61850-7-4, some DO with CDC MV have a SIUnit that is indicated in the description of the DO.

Example : in MMET, DO EnvTmp of CDC MV has the description : "Temperature of environment [°C]."

But a lot do not have any.
It would be interesting for the comprehension of the semantic of the DO, to indicate a SIUnit for every DO with CDC MV (or indicate clearly if it has no unit)


In addition, it could be interesting to add a dedicated attribute for this purpose, in the NSD files, instead of having this information in the description


Related issues

Copied to IEC TC57 WG10 Future Work - WG10FutureWork #5966: Indicate typical SIUnit for every DO with CDC MV would help users + Add a dedicated attribute in NSD files instead of having it in the description ?New08/26/2022

Actions
#1

Updated by Aurelie Dehouck 3 months ago

To include also in IEC 61400

#2

Updated by Carlos Rodriguez del Castillo 3 months ago

  • Discuss in Upcoming Meeting changed from No to Yes
#3

Updated by Carlos Rodriguez del Castillo 2 months ago

  • Discuss in Upcoming Meeting changed from Yes to No
A couple of possibilities:
  • Make SIUnit mandatory in all analogue objects
  • Requires the description in NSD to include SIUnit: Does not solve the problem as the real SIUnit in a device can be different
  • To declare a default SIUnit in every analog object: Maybe problem with NSD...
  • Additional column in data objects (7-4) to indicate default SIUnit
    Take into account that if you want to define a multiplier different that one (1), then SIUnit is mandatory and the unit is defined.
    Decision: "Future work, for edition 3". Improvements in units is needed. We need a consistent solution over all parts of the standard. Trying to be backward-compatible.
#4

Updated by Vladan Cvejic 2 months ago

  • Copied to WG10FutureWork #5966: Indicate typical SIUnit for every DO with CDC MV would help users + Add a dedicated attribute in NSD files instead of having it in the description ? added
#5

Updated by Vladan Cvejic about 1 month ago

  • Due date set to 10/25/2022
  • Status changed from New to Resolved

Also available in: Atom PDF