IEC 60870-5-103 is specified for single function protective equipment with a limited set of process data. Some extensions are necessary for supporting the IEDs.
- Multiple protection functionality
- Objects with four valid positions such as circuit breakers or disconnectors
- Circuit breaker and disconnector control operations
- Class 1 event overflow handling
Since these features are not a part of the IEC 60870-5-103 standard, it is not likely that different vendors have implemented them in the same manner. However, it is guaranteed that the IEDs in this product series are equally implemented concerning these features. In addition of having product series-specific default settings for private function type and information number application data definitions, the user can reprogram these settings if required. The user can also affect the way in which Class 1 event overflows should be treated and reported.
ASDU type 2 data is generally supported. This means the generation of a fault number and a relative time stamp for protection related Class 1 events. Despite the default ASDU type settings it is possible for the user to configure either ASDU type 1 or 2 separately for each private Class 1 data.
Different Class 2 measurand value sets are selectable. All the standardized ASDU 3 (Meas I) and ASDU 9 (Meas II) sets can be selected. Additionally some IED-dependent private ASDU 9 frames are also provided. It is also possible for the user to freely define an own (private) Class 2 measurand set.
IEC 60870-5-103 disturbance files are supported. The IEC 60870-5-103 communication stack adapter contains a conversion functionality between the IED's native disturbance recorder files and the IEC 60870-5-103 specific disturbance recorder data and settings definitions.