Denial Of Service - ABB REG650 Technical Manual

1MRK 502 043-UUS B
17.14
17.14.1
17.14.2
17.14.2.1
17.14.2.2
17.14.2.3
Technical Manual

Denial of service

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.
Denial of service, frame rate control for front port DOSFRNT
Identification
Function description
Denial of service, frame rate control for
front port
Function block
DOSFRNT
LINKUP
WARNING
ALARM
IEC09000133-1-en.vsd
IEC09000133 V1 EN
Figure 259: DOSFRNT function block
Signals
Table 453: DOSFRNT Output signals
Name Type
LINKUP BOOLEAN
WARNING BOOLEAN
ALARM BOOLEAN
IEC 61850 IEC 60617
identification identification
DOSFRNT -
Description
Ethernet link status
Frame rate is higher than normal state
Frame rate is higher than throttle state
Section 17
Basic IED functions
ANSI/IEEE C37.2
device number
-
577