4.6 Basic application functions
Station initialization
(Station-specific parameter, mark with an “X“ if the function is used.)
Remote initialization
Cyclic data transmission
(Station-specific parameter, mark with an “X“ if the function is only used in the
standard direction, “R“ if only used in the reverse direction, and “B“ if used in both
directions.)
Cyclic data transmission
Read procedure
(Station-specific parameter, mark with an “X“ if the function is only used in the
standard direction, “R“ if only used in the reverse direction, and “B“ if used in both
directions.)
Read procedure
Spontaneous transmission
(Station-specific parameter, mark with an “X“ if the function is only used in the
standard direction, “R“ if only used in the reverse direction, and “B“ if used in both
directions.)
Spontaneous transmission
Double transmission of information objects with cause of transmission
spontaneous
(Station-specific parameter, mark each information type with an “X“ where both a
Type ID without time and a corresponding Type ID with time are issued in response
to a single spontaneous change of a monitored object.)
The following type identifications may be transmitted in succession caused by a
single status change of an information object. The particular information object
addresses for which double transmission is enabled are defined in a project-specific
list.
Double-point information M_DP_NA_1, M_DP_TA_1 and M_DP_TB_1
Step position information M_ST_NA_1, M_ST_TA_1 and M_ST_TB_1
Bitstring of 32 bit M_BO_NA_1, M_BO_TA_1 and M_BO_TB_1 (if defined for a specific
project)
Measured value, normalized value M_ME_NA_1, M_ME_TA_1, M_ME_ND_1 and
M_ME_TD_1
Table continues on the next page
2NGA001859 A IEC 60870-5-104 interoperability
REX615
IEC 60870-5-104 Communication Protocol Manual
43
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