Remote Communication; Hardware Description; Multiple Command And Transmit; Analog And Binary Signal Transfer To Remote End - ABB REC670 Product Manual

Bay control REC670 2.2
Product version: 2.2.1

Multiple command and transmit

When IEDs are used in Substation Automation systems with
LON, SPA or IEC 60870-5-103 communication protocols, the
Event and Multiple Command function blocks are used as the
communication interface for vertical communication to station
HMI and gateway, and as interface for horizontal peer-to-peer
communication (over LON only).

20. Remote communication

Analog and binary signal transfer to remote end

Three analog and eight binary signals can be exchanged
between two IEDs. This functionality is mainly used for the
line differential protection. However it can be used in other
products as well. An IED can communicate with up to 4
remote IEDs.
Binary signal transfer
The remote end data communication is used for the
transmission of analog values for line differential protection or
for the transmission of only binary signals between IEDs. The
binary signals are freely configurable and can thus be used
for any purpose, such as communication scheme related
signals, transfer trip and/or other binary signals between
IEDs.
Communication between two IEDs requires that each IED is
equipped with a Line Data Communication Module (LCDM).
The LDCM then acts as an interface to 64 kbit/s and 2Mbit/s
communication channels for duplex communication between
the IEDs. In 2Mbit/s mode, each LDCM can send and receive
up to 9 analog and up to 192 binary signals simultaneously.
In 64kbit/s mode, the LDCM can be configured to work in
either analog mode or binary mode. In analog mode, the IED
can send and receive up to 3 analog signals and up to 8
binary signals. In binary mode, the LDCM can send and
receive only binary data (up to 192 binary signals).
The IED can be equipped with up to two short range, medium
range or long range LDCMs.
Line data communication module, short, medium and long
range LDCM
The line data communication module (LDCM) is used for
communication between the IEDs situated at a distance <110
km/68 miles or from the IED to the optical-to-electrical
converter with G.703 or G.703E1 interface located at a
distance < 3 km/1.9 miles away. The LDCM module sends
and receives data to and from another LDCM module. The
IEEE/ANSI C37.94 standard format is used.
Galvanic interface G.703 resp G.703E1
The external galvanic data communication converter G.
703/G.703E1 makes an optical-to-galvanic conversion for
connection to a multiplexer. These units are designed for 64
kbit/s resp 2Mbit/s operation. The converter is delivered with
19" rack mounting accessories.
42

21. Hardware description

M14791-3 v3
Hardware modules
Numeric processing module NUM
The numeric processing module (NUM) is a CPU module that
handles all protection functions and logic.
NUM provides up to 4 optical (type LC) or galvanic (type
RJ45) Ethernet ports(one basic and three optional).
Power supply module PSM
The power supply module is used to provide the correct
internal voltages and full isolation between the IED and the
M12449-6 v3
battery system. An internal fail alarm output is available.
Alternative connectors of Ring lug or Compression type can
be ordered.
Binary input module BIM
The binary input module has 16 optically isolated inputs and
SEMOD52522-4 v7
is available in two versions, one standard and one with
enhanced pulse counting capabilities on the inputs to be
used with the pulse counter function. The binary inputs are
freely programmable and can be used for the input of logical
signals to any of the functions. They can also be included in
the disturbance recording and event-recording functions. This
enables extensive monitoring and evaluation of operation of
the IED and for all associated electrical circuits.
Binary output module BOM
The binary output module has 24 independent output relays
and is used for trip output or any signaling purpose.
Static binary output module SOM
The static binary output module has six fast static outputs
and six change over output relays for use in applications with
high speed requirements.
Binary input/output module IOM
The binary input/output module is used when only a few input
and output channels are needed. The ten standard output
channels are used for trip output or any signaling purpose.
The two high speed signal output channels are used for
applications where short operating time is essential. Eight
optically isolated binary inputs cater for required binary input
SEMOD168481-4 v10
information.
mA input module MIM
The milli-ampere input module is used to interface transducer
signals in the –20 to +20 mA range from for example OLTC
position, temperature or pressure transducers. The module
has six independent, galvanically separated channels.
Optical Ethernet module
The optical Ethernet module (OEM) provides two additional
M16035-3 v5
optical ethernet ports. The port connectors are of LC type.
1MRK 511 404-BEN A
IP14529-1 v1
M12643-3 v3
M11595-3 v6
M1769-3 v4
M6938-3 v4
SEMOD174196-4 v4
M6939-3 v6
M15020-3 v4
M16073-3 v7
ABB