ABB REF 545 - 9 Appendix A: the IEC 60870-5-103 Bus; Functions Supported by REF 54

1MRS750527-MUM
REF 54_
113
Feeder Terminal
Technical Reference Manual, General
9. Appendix A: The IEC 60870-5-103 bus
A050774
Fig. 9.-1 Example of the physical connection of the IEC 60870-5-103 control
system
9.1. Functions supported by REF 54_
REF 541
Uaux = 80...265 Vdc/ac
fn = 50 Hz
In = 1/5 A (I)
1MRS xxxxxx
98150
9509
Ion = 1/5 A (Io)
Un = 100/110 V (U)
Uon = 100/110 V (Uo)
21 kV
CB OK
AROFF
REF 541
Uaux = 80...265 Vdc/ac
fn = 50 Hz
In = 1/5 A (I)
1MRS xxxxxx
98150
9509
Ion = 1/5 A (Io)
Un = 100/110 V (U)
Uon = 100/110 V (Uo)
21 kV
CB OK
AROFF
REF 541
Uaux = 80...265 Vdc/ac
fn = 50 Hz
In = 1/5 A (I)
1MRS xxxxxx
98150
9509
Ion = 1/5 A (Io)
Un = 100/110 V (U)
Uon = 100/110 V (Uo)
21 kV
CB OK
AROFF
REF 541
Uaux = 80...265 Vdc/ac
fn = 50 Hz
In = 1/5 A (I)
1MRS xxxxxx
98150
9509
Ion = 1/5 A (Io)
Un = 100/110 V (U)
Uon = 100/110 V (Uo)
21 kV
CB OK
AROFF
SPA -Z C 2 2
SPA-ZC 22 RER 125
RS232C
RER 123RER 103
SMS
REF 54_ terminals
RER 123 connected to X3.2
RER 103 connected to X3.3
Fiber optic modem
IEC_103 Master
Function
Function
code
Comment
Reset CU 0 Replies with the identification string
User data 3 • GI command
• time synchronization (unicast)
• application control commands
Broadcast 4 Time synchronization only
Reset FCB 7 Replies with the identification string
Request Access Demand 8
Request Status of Link 9
Request Class 1 Data 10
Request Class 2 Data 11