IEC 60870-5-101 and IEC 60870-5-104
Functions
Type ids IEC-101 / IEC-104
Command
direc-
tion /
control
direction
Conver-
sion to
IEC-101
type id
iec104
convert
types
(Stan-
dard)
Command
direc-
tion /
control
direction
Conver-
sion to
IEC-101
type id
iec104
convert
no asdu-
types
120
F_FR_NA_1
File ready
120
120
121
F_SR_NA_1
Section ready
121
121
122
F_SC_NA_1
Polling directory, selection,
polling, section polling
122
122
123
F_LS_NA_1
Last section, last segment
123
123
124
F_FA_NA_1
File acknowledgement, sec-
tion acknowledgement
124
124
125
F_SG_NA_1
Section
125
125
126
F_DR_TA_1
Directory
126
126
127-225
TYPE_127-255
Reserved (user-defined
range)
127-255
127-255
Table 35:
Type conversion in command direction
Type ids IEC-101 / IEC-104
Message
direc-
tion /
Monitor
direction
Conver-
sion to
IEC-104
type id
iec104
convert
types
(Stan-
dard)
Message
direc-
tion /
Monitor
direction
Conver-
sion to
IEC-104
type id
iec101
convert
no asdu-
types
0
UNDEF
not used
0
0
1
M_SP_NA_1
Single message
1
1
2
M_SP_TA_1
Single message with time
stamp CP24Time2a
30
2
3
M_DP_NA_1
Double message
3
3
4
M_DP_TA_1
Double message with time
stamp CP24Time2a
31
4
Table 36: Type conversion in message direction
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