Appendix A: The Iec 60870-5-103 Bus; Functions Supported By Ref 54 - ABB REF 54 Series Technical Reference Manual, General

1MRS750527-MUM
9.
9.1.
Feeder Terminal
Technical Reference Manual, General

Appendix A: The IEC 60870-5-103 bus

RER 103
Fig. 9.-1 Example of the physical connection of the IEC 60870-5-103 control
system

Functions supported by REF 54_

Function
Reset CU
User data
Broadcast
Reset FCB
Request Access Demand
Request Status of Link
Request Class 1 Data
Request Class 2 Data
SMS
SPA-ZC 22
Function
Comment
code
0 Replies with the identification string
3 • GI command
• time synchronization (unicast)
• application control commands
4 Time synchronization only
7 Replies with the identification string
8
9
10
11
REF 54_
IEC_103 Master
RS232C
Fiber optic modem
RER 125
RER 123
REF 54_ terminals
RER 123 connected to X3.2
RER 103 connected to X3.3
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