Remote Communication - ABB Relion 670 Series Product Manual

Bay control REC670
Version 2.2
Function commands generic for IEC 60870-5-103
I103GENCMD
I103GENCMD is used for transmitting generic
commands over IEC 60870-5-103. The function has two
output signals, CMD_OFF and CMD_ON, that can be used
to implement double-point command schemes.
The I103GENCMD component can be configured as
either 2 pulsed ON/OFF or 2 steady ON/OFF outputs.
The ON output is pulsed with a command with value 2,
while the OFF output is pulsed with a command with
value 1. If in steady mode is ON asserted and OFF
deasserted with command 2 and vice versa with
command 1.
IED commands with position and select for IEC
60870-5-103 I103POSCMD
I103POSCMD has double-point position indicators that
are getting the position value as an integer (for
example, from the POSITION output of the SCSWI
function block) and sending it over IEC 60870-5-103
(1=OPEN; 2=CLOSE). The standard does not define the
use of values 0 and 3. However, when connected to a
switching device, these values are transmitted.
The BLOCK input will block only the signals in
monitoring direction (the position information), not the
commands via IEC 60870-5-103. The SELECT input is
used to indicate that the monitored apparatus has been
selected (in a select-before-operate type of control).
DNP3.0 communication protocol
An electrical RS485 serial port, optical serial ports on the
serial communication module (SLM), optical Ethernet
ports are available for DNP3.0 communication. DNP3.0
Level 2 communication with unsolicited events, time
synchronization and disturbance reporting is provided
for communication to RTUs, Gateways or HMI systems.
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).

23. 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.
Hitachi Power Grids
SEMOD153688-5 v3
M14791-3 v3
M12449-6 v3
© Copyright 2017 Hitachi Power Grids. All rights reserved
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
(LDCM). 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 X.21 line data communication module X.21-
LDCM
A module with built-in galvanic X.21 converter which e.g.
can be connected to modems for pilot wires is also
available.
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.
1MRK 511 404-BEN N
SEMOD52522-4 v10
SEMOD168481-4 v11
GUID-3C6C7DAC-1DB1-4CB8-991F-3B1D86551F28 v3
M16035-3 v5
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