DNP3 object type 1, binary input objects are derived from IEC 61850 data object’s boolean type attributes, mainly from data classes SPS, SPC, ACD and ACT. Also, few binary input objects have been converted from enumeral INS and INC classes (ENS and ENC classes in Edition 2).
Note: The circuit breaker and disconnector double point data objects, containing open and close bits, also exist in the DNP3 map as normal single binary input alternatives. These are intended for DNP3 controlling stations that do not support the double bit input DNP3 data type alternative (Object group 3).
DNP3 object type 2, binary input change events can buffer up to 200 events. When the buffer becomes full, the new events are discarded until more space is available in the event buffer.
Binary inputs which are not of “Static-Only” type can be assigned to any DNP3 event class. Furthermore, it is possible to invert the signals if necessary, for example, generic input data.
The default variation for all binary input values can be set with the Default Var Obj 01 parameter.