ABB REB650 - Denial of Service

15.14 Denial of service
15.14.1 Functionality
The Denial of service functions (DOSLAN1 and DOSFRNT) are designed to limit
overload on the IED produced by heavy Ethernet network traffic. The communication
facilities must not be allowed to compromise the primary functionality of the device.
All inbound network traffic will be quota controlled so that too heavy network loads
can be controlled. Heavy network load might for instance be the result of
malfunctioning equipment connected to the network.
15.14.2 Denial of service, frame rate control for front port DOSFRNT
15.14.2.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Denial of service, frame rate control for
front port
DOSFRNT - -
15.14.2.2 Function block
DOSFRNT
LINKUP
WARNING
ALARM
IEC09000133-1-en.vsd
IEC09000133 V1 EN
Figure 172: DOSFRNT function block
15.14.2.3 Signals
Table 356: DOSFRNT Output signals
Name
Type Description
LINKUP BOOLEAN Ethernet link status
WARNING BOOLEAN Frame rate is higher than normal state
ALARM BOOLEAN Frame rate is higher than throttle state
1MRK 505 277-UUS C Section 15
Basic IED functions
413
Technical Manual