7-4
8 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE
INTEROPERABILITY
CHAPTER 7: IEC 60870-5-103
Interoperability
Physical layer
Electrical interface
Optical interface
Transmission speed
Link layer
There are no choices for the Link Layer.
Application layer
Transmission mode
for application data
Mode 1 (least significant octet first), is used exclusively in this companion standard.
Common address of
ASDU
Selection of standard
information numbers
in monitor direction
Table 7-3: System functions in monitor direction
⊠
EIA RS-485
32
Number of loads for one protection equipment
□
Glass fibre
□
Plastic fibre
□
F-SMA type connector
□
BFOC/2,5 type connector
⊠
9600 bits/s
⊠
19200 bits/s
⊠
One COMMON ADDRESS OF ASDU (identical with station address)
More than one COMMON ADDRESS OF ASDU
INF
Semantics
⊠
<0>
End of general interrogation
⊠
<0>
Time synchronization
⊠
<2>
Reset FCB
⊠
<3>
Reset CU
⊠
<4>
Start/restart
⊠
<5>
Power on