ABB Relion 611 series REB611 Product Manual page 12

Busbar and Multipurpose Differential Protection and Control
REB611
Product version: 1.0
optional communication modules. The IED can be
connected to Ethernet-based communication
systems via the RJ-45 connector (100Base-TX) or
the fibre-optic LC connector (100Base-FX). If
connection to a serial bus is required, the 10-pin
RS-485 screw terminal can be used.
Modbus implementation supports RTU, ASCII and
TCP modes. Besides standard Modbus
functionality, the IED supports retrieval of time-
stamped events, changing the active setting
group and uploading of the latest fault records. If
a Modbus TCP connection is used, five clients
can be connected to the IED simultaneously.
When the IED uses the RS-485 bus for the serial
communication, both two- and four-wire
connections are supported. Termination and pull-
Client A
Managed Ethernet switch
with RSTP support
REF611
Overcurrent
Earth-fault
Phase unbalance
Thermal overload
AR sequence in progress
Disturb.rec.trigged
Trip circuit failure
Breaker failure
REF611
REF611
GUID-A19C6CFB-EEFD-4FB2-9671-E4C4137550A1 V1 EN
Figure 6. Self-healing Ethernet ring solution
Table 5. Supported station communication interfaces and protocols
Interfaces/protocols
IEC 61850
MODBUS RTU/ASCII
MODBUS TCP/IP
● = Supported
12
up/down resistors can be configured with jumpers
on the communication card. External resistors are
not needed.
The IED supports the following time
synchronization methods with a time-stamping
resolution of 1 ms:
Ethernet-based:
• SNTP (Simple Network Time Protocol)
With special time synchronization wiring:
• IRIG-B (Inter-Range Instrumentation Group -
In addition, the IED supports time synchronization
via the Modbus protocol.
REF611
REF611
Overcurrent
Overcurrent Earth-fault
Earth-fault
Phase unbalance
Phase unbalance
Thermal overload
Thermal overload
AR sequence in progress
AR sequence in progress
Disturb.rec.trigged
Disturb.rec.trigged Trip circuit failure
Trip circuit failure
Breaker failure
Breaker failure
REF611
Ethernet
100BASE-FX
●
-
●
Time Code Format B)
Client B
Managed Ethernet switch
with RSTP support
REM611
Short circuit
Combined protection
Thermal overload
Motor restart inhibit
Emergency start enabled
Disturb.rec.trigged
Supervision alarm
Breaker failure
REM611 REB611
10/100BASE-TX
●
-
●
1MRS757467 B
Network
Network
REB611
High-impedance 1 operate
High-impedance 2 operate
High-impedance 3 operate
High-impedance start
Segregated supervision
Disturb.rec.trigged
Trip circuit failure
Breaker failure
Serial
RS-485
-
●
-
ABB