The LHMI is used for setting, monitoring and controlling.
15. Basic IED functions
Time synchronization
M11344-3 v9
The time synchronization function is used to select a common
source of absolute time for the synchronization of the IED
when it is a part of a protection system. This makes it
possible to compare events and disturbance data between all
IEDs within a station automation system and in between sub-
stations.
16. Station communication
Communication protocols
M14815-3 v12
Each IED is provided with a communication interface,
enabling it to connect to one or many substation level
systems or equipment, either on the Substation Automation
(SA) bus or Substation Monitoring (SM) bus.
Available communication protocols are:
• IEC 61850-8-1 communication protocol
• IEC 61850-9-2LE communication protocol
• LON communication protocol
• SPA or IEC 60870-5-103 communication protocol
• DNP3.0 communication protocol
Several protocols can be combined in the same IED.
IEC 61850-8-1 communication protocol
M14787-3 v12
IEC 61850 Ed.1 or Ed.2 can be chosen by a setting in
PCM600. The IED is equipped with single or double optical
Ethernet rear ports (order dependent) for IEC 61850-8-1
station bus communication. The IEC 61850-8-1
communication is also possible from the electrical Ethernet
front port. IEC 61850-8-1 protocol allows intelligent electrical
devices (IEDs) from different vendors to exchange information
and simplifies system engineering. IED-to-IED communication
using GOOSE and client-server communication over MMS are
supported. Disturbance recording file (COMTRADE) uploading
can be done over MMS or FTP.
IEC 61850-9-2LE communication protocol
GUID-C3AA21B4-730F-4327-943A-3C77102A80A0 v2
Single optical Ethernet port communication standard IEC
61850-9-2LE for process bus is provided. IEC 61850-9-2LE
allows Non Conventional Instrument Transformers (NCIT) with
Merging Units (MU) or stand alone Meging Units to exchange
information with the IED and simplifies SA engineering.
LON communication protocol
SEMOD120140-5 v2
Existing stations with ABB station bus LON can be extended
with use of the optical LON interface. This allows full SA
functionality including peer-to-peer messaging and
cooperation between the IEDs.
SPA communication protocol
SEMOD120134-5 v1
A single glass or plastic port is provided for the ABB SPA
protocol. This allows extensions of simple substation
automation systems but the main use is for Substation
Monitoring Systems SMS.
IEC 60870-5-103 communication protocol
SEMOD120137-5 v3
A single glass or plastic port is provided for the IEC
60870-5-103 standard. This allows design of simple
substation automation systems including equipment from
different vendors. Disturbance files uploading is provided.
DNP3.0 communication protocol
SEMOD153688-5 v1
An electrical RS485 and an optical Ethernet port is available
for the DNP3.0 communication. DNP3.0 Level 2
communication with unsolicited events, time synchronizing
and disturbance reporting is provided for communication to
RTUs, Gateways or HMI systems.
Multiple command and transmit
M14791-3 v3
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).
IEC 62439-3 Parallel Redundancy Protocol
GUID-A90FDBA7-D4D7-4CBD-9F05-13DCC9971779 v5
Redundant station bus communication according to IEC
62439-3 Edition 1 and IEC 62439-3 Edition 2 parallel
redundancy protocol (PRP) are available as options when
ordering IEDs. Redundant station bus communication
according to IEC 62439-3 uses both port AB and port CD on
the OEM module.
17. Remote communication
Analog and binary signal transfer to remote end
M12449-6 v2
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
M13458-3 v4
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
SEMOD168481-4 v7
The line data communication module (LDCM) is used for
communication between the IEDs situated at distances <60
km/37miles or from the IED to optical to electrical converter
with G.703 or G.703E1 interface located on a distances < 3
1MRK 502 068-BEN D
Generator protection REG670 2.1 IEC
Product version: 2.1
34
ABB
