ABB EDS500 Series Function Manual page 76

IEC 60870-5-101 and IEC 60870-5-104
• Forwarding the time information from the telecontrol unit.
The information for year, month, day, weekday and hours is set to zero and the original
information of minutes and milliseconds is copied from the original time stamp
CP24Time2a. As CP56Time2a time stamp decodes itself always to the range 01.01.2000
00:00:00.000 to 01.01.2000 00:59:59:999 (where the date only completes the definition).
• Replacing the time stamp of the telecontrol unit during conversion
The system time of the switch (has to be configured via (s)NTP) is used as time stamp. As
part of the IEC standards this is a substitute time and the bit RES1 (real time or substitute
time) of the time stamp CP56Time2a is set accordingly. If the converting device know no
valid time then the time stamp is set to invalid (bit IV).
If a conversion is pursued then it is usually preceded by an examination of the current state
and the design of a conversion concept that defines the various degrees of freedom for
conversion and protocols.
Type ids IEC-101 / IEC-104
0 UNDEF
1 M_SP_NA_1
2 M_SP_TA_1
3 M_DP_NA_1
4 M_DP_TA_1
5 M_ST_NA_1
6 M_ST_TA_1
7 M_BO_NA_1
8 M_BO_TA_1
9 M_ME_NA_1
10 M_ME_TA_1
11 M_ME_NB_1
12 M_ME_TB_1
Table 35: Type conversion in command direction
76
not used
Single message
Single message with time
stamp CP24Time2a
Double message
Double message with time
stamp CP24Time2a
Level setting message
Level setting message with
time stamp CP24Time2a
Bit pattern 32 bit
Bit pattern 32 bit with time
stamp CP24Time2a
Measured value, standard-
ized value
Measured value, standard-
ized value with time stamp
CP24Time2a
Measured value, scaled value 11
Measured value, scaled
value with time stamp
CP24Time2a
Functions
Command Command
direc- direc-
tion / tion /
control control
direction direction
Conver- Conver-
sion to sion to
IEC-101 IEC-101
type id type id
iec104 iec104
convert convert
asdu- no asdu-
types types
(Stan-
dard)
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11
12 12
1KGT151021 V000 1