ABB RELION REX640 - 3.24.6 LDPRLRC Settings; 3.24.7 LDPRLRC Monitored data; 3.25 Ethernet channel supervision functions; 3.25.1 Redundant Ethernet channel supervision RCHLCCH

3.24.5.1 LDPRLRC Output signals
Table 343: LDPRLRC Output signals
Name Type Description
MEM_WARN BOOLEAN Recording memory warning
status
MEM_ALARM BOOLEAN Recording memory alarm sta-
tus
3.24.6 LDPRLRC Settings
Table 344: LDPRLRC Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
1=on Operation Off / On
Mem. warning level 0...100 % 1 0 Set memory warn-
ing level
Mem. alarm level 0...100 % 1 0 Set memory alarm
level
3.24.7 LDPRLRC Monitored data
Table 345: LDPRLRC Monitored data
Name Type Values (Range) Unit Description
Rec. memory used INT32 0...100 % How much recording
memory is currently
used
3.25 Ethernet channel supervision functions
The protection relay offers a bandwidth rate limiting functionality to limit the
Ethernet/TCP network traffic. The main purpose of this feature is the possibility
to divide network segments for different multicast frame types and also to
limit the network congestion and traffic towards the protection relay processing
during network attacks (such as a Denial of Service attack) or in case of network
configuration issues.
See the cyber security deployment guideline for the Ethernet filter and rate limiter
functionality.
3.25.1 Redundant Ethernet channel supervision RCHLCCH
1MRS759142 F
Basic functions
REX640
Technical Manual
315