In Edition 1 of IEC 61850, it was possible to extend CDCs. This was used in IEC 62271-3 to create Name plate Information for switchgear by extending the CDC for Name Plates. In Edition 2, it is not allowed anymore to extend CDCs outside of the IEC 61850-7-3 Namespace. Therefore, a new possibility is needed to define Domain specific nameplate Information. See as well TISSUE 1129.
Nameplate Information is purely descriptive Information. IEC 62271-3 created a number of new data attributes within the CDC DPL of the type Visible String to represent that Information. Since this is not allowed anymore in Edition 2, a similar Approach can be, do create new data objects within the Logical node that models the primary Equipment. For These data objects, we need a commmon data class where the core value is a visible string. The value is not writable and now Quality and timestamp are required. To be in line with the other nameplate Information, the FC should be DC
Create a new CDC VSD - visual string descriptive Information.
val VISIBLE STRING255 DC M
d VISIBLE STRING255 DC O
dU UNICODE STRING255 DC O
cdcNs VISIBLE STRING255 EX AC_DLNDA_M
cdcName VISIBLE STRING255 EX AC_DLNDA_M
dataNs VISIBLE STRING255 EX AC_DLN_M
07 Jan 14
In Force (green)
This TISSUE will be applicable with Revision V2.1 (Namespace 2007B)
12 Dec 13
05 Dec 13
a Proposal how this can be applied to IEC 62271-3, Ed 2 is shown in the Attachement