• Single-bit binary input point type object groups:

    Group number

    Used for

    1

    Reporting the present value of a single-bit binary input

    2

    Reporting single-bit binary input events or flag bit changes
  • Double-bit binary input point type object groups:

    Group number

    Used for

    3

    Reporting present state value

    4

    Reporting double-bit binary input events or flag bit changes
  • Binary output point type object groups:

    Group number

    Used for

    10

    Reporting the present output status

    11

    Reporting changes to the output status or flag bits

    12

    Issuing control commands
  • Counter point type object groups:

    Group number

    Used for

    20

    Reporting the count value

    21

    Reporting the frozen count value or changed flag bits

    22

    Reporting counter events

    23

    Reporting frozen counter events
  • Analog input point type object groups:

    Group number

    Used for

    30

    Reporting the present value

    32

    Reporting analog input events or changes to the flag bits

    34

    Reading and writing analog deadband values
  • Analog output point type object groups:

    Group number

    Used for

    40

    Reporting the present value of analog outputs

    41

    Controlling analog output values

    42

    Reporting changes to the analog output or flag bits
  • Time and data object groups:

    Group number

    Used for

    50

    Set or get the current time
  • Class object groups:

    Group number

    Used for

    60

    Read request to specify that the outstation return some or all objects having a specified class event attribute.
  • Octet string point type object groups:

    Group number

    Used for

    110

    To convey the present value
  • Security statistics point type object groups:

    Group number

    Used for

    121

    Reporting the current value of the statistics

    122

    Reporting changes to the statistics