13000024-IEC18000608-1-en.vsdx
IEC18000608 V1 EN-US
Figure 4: Configuring signals as events
Diagnostic and system events are always available for transfer whichever protocol is in use
and cannot be configured.
The IEC 60870-5-103 section only appears when the protocol is configured.
3.4 Transfer of differential current values
3.4.1 The delta/dead band algorithm
GUID-85BE2C1A-DD67-4564-99E1-CF504CBD06D7 v1
To keep the load on the IBB as low as possible, the bus zone differential currents are checked
cyclically, but only actually transferred via the bus if the value has changed.
Diff.
Current
Values transferred
to the SCS
Zero limit
0 100 200
12000189-IEC18000308-1-en.vsd
IEC18000308 V1 EN-US
Figure 5: Transmitted values and the zero limit
To stabilize the display during normal operation, differential currents below the zero limit
(dead band) count as zero and are transferred as such.
1MRK 511 451-UEN B Section 3
Interbay bus functions
Distributed busbar protection REB500 11
Communication protocol manual IEC60870-5-103
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