Human Machine Interface; Basic Ied Functions; Ethernet - ABB Relion 670 Series Product Manual

Line distance protection REL670
Version 2.2
reverse directions. These energy values are available as
output signals and also as pulse outputs. Integration of
energy values can be controlled by inputs (STARTACC
EnaAcc setting and it can be reset to
and STOPACC) and
initial values with RSTACC input.
The maximum demand for active and reactive powers
are calculated for the set time interval
these values are updated every minute through output
channels. The active and reactive maximum power
demand values are calculated for both forward and
reverse direction and these values can be reset with
RSTDMD input.

18. Human machine interface

Local HMI
IEC13000239 V3 EN-US
Figure 12. Local human-machine interface
The LHMI of the IED contains the following elements
• Graphical display capable of showing a user defined
single line diagram and provide an interface for
controlling switchgear.
• Navigation buttons and five user defined command
buttons to shortcuts in the HMI tree or simple
commands.
• 15 user defined three-color LEDs.
• Communication port for PCM600.
Hitachi Power Grids
tEnergy and
AMU0600442 v15
IEC13000239-3-en.vsd
© Copyright 2017 Hitachi Power Grids. All rights reserved
The LHMI is used for setting, monitoring and controlling.

19. Basic IED functions

Time synchronization
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. A common source
shall be used for IED and merging unit when IEC/UCA
61850-9-2LE process bus communication is used.
Precision time protocol PTP
PTP according to IEEE 1588-2008 and specifically its
profile IEC/IEEE 61850-9-3 for power utility automation
is a synchronization method that can be used to
maintain a common time within a station. This time can
be synchronized to the global time using, for instance, a
GPS receiver. If PTP is enabled on the IEDs and the
switches that connect the station are compatible with
IEEE 1588, the station will become synchronized to one
common time with an accuracy of under 1us. Using an
IED as a boundary clock between several networks will
keep 1us accuracy on three levels or when using an HSR,
15 IEDs can be connected in a ring without losing a
single microsecond in accuracy.

20. Ethernet

Access points
An access point is an Ethernet communication interface
for single or redundant station communication. Each
access point is allocated with one physical Ethernet
port, two physical Ethernet ports are allocated if
redundant communication is activated for the access
point.
Device 1
AP1 AP2 AP3
SFP_301 SFP_302 SFP_303
IEC16000092 V1 EN-US
Figure 13. Access points, non redundant (left) and redundant
communication (right)
DHCP is available for the front port, and a device
connected to it can thereby obtain an automatically
assigned IP-address.
Access points diagnostics
The access point diagnostics function blocks (RCHLCCH,
SCHLCCH and FRONTSTATUS) supervise
1MRK 506 372-BEN M
GUID-6E5D2696-A8EE-43E7-A94B-69C3D0612127 v2
Device 1
AP1 AP2
SFP_301
SFP_302
IEC16000092-1-en.vsdx
GUID-20F64A6D-AA8C-47D7-AA7D-4810996B2FF2 v2
M11344-3 v11
M11345-3 v12
AP3
SFP_303
53