Basler Electric BE1-11 IEC 61850 Protocol - Manual (Page 28)

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Figure 18. Datasets Tab
Functional Constraints
The IEC 61850 standard defines a number of functional constraints that indicate the data attribute is used
for some particular purpose, such as reporting (BR/RP), configuration (CF), control (CO), description
(DC), extended definition (EX), GOOSE control (GO), logging (LG), measured analog value (MX), setting
groups (SG), setpoint (SP), and status (ST). The functional constraints of a DATA instance determines
the rights of services to read and/or write the DATA.
DATA OBJECT
The DATA OBJECT or DATA class (abbreviated DO) like the LN class, is a key element of the IEC 61850
standard. Values of DATA instances represent meaningful information about substation devices, such as
currents, voltages, power, phases, temperatures, status, timestamps, and so on. The DATA OBJECT
may contain attributes which are themselves instances of the DATA class. Hence, it can be said that the
DATA class is recursively defined.
DATA ATTRIBUTE
The DATA ATTRIBUTE class (abbreviated DA) contains the smallest piece of data that can be defined in
IEC 61850. The DA class includes definition of instance name, reference, type, and presence. Presence
indicates whether or not the data is mandatory or optional.
Datasets Settings
The Datasets settings are described in Table 5.
BEST61850™ BE1-11