Remote Communication; Hardware Description - ABB RET670 Product Manual

Transformer protection RET670
Customized
Product version: 1.2
Select IEC 62439-3 Edition 1
protocol at the time of ordering
when an existing redundant
station bus DuoDriver
installation is extended.
Select IEC 62439-3 Edition 2
protocol at the time of ordering
for new installations with
redundant station bus.
IEC 62439-3 Edition 1 is NOT
compatible with IEC 62439-3
Edition 2.

18. 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 to remote end, 192 signals
If the communication channel is used for transfer
of binary signals only, up to 192 binary signals
can be exchanged between two IEDs. For
example, this functionality can be used to send
information such as status of primary switchgear
apparatus or intertripping signals to the remote
IED. An IED can communicate with up to 4
remote IEDs.
Line data communication module, short and
medium range LDCM
The line data communication module (LDCM) is
used for communication between the IEDs
situated at distances <60 km or from the IED to
optical to electrical converter with G.703 or G.
703E1 interface located on a distances <3 km
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.
26
1MRK 504 117-BEN D

19. Hardware description

Hardware modules
Power supply module PSM
The power supply module is used to provide the
correct internal voltages and full isolation between
the terminal and the battery system. An internal
fail alarm output is available.
Binary input module BIM
The binary input module has 16 optically isolated
inputs and 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 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 OEM
The optical fast-ethernet module is used to
connect an IED to the communication buses (like
the station bus) that use the IEC 61850-8-1
ABB