Serial Communication; Self-Supervision; Front Panel Optical Connection For Pc - ABB REF 541 Product Manual

8
Feeder Terminal
• optically isolated serial communication
port
• backlight and contrast control
• freely programmable button (F) which can
be used in the configuration of the feeder
terminal
• a button for remote/local control
HMI has two main levels, the user level and
the technical level. The user level is for
"everyday" measurements and monitoring
whereas the technical level is intended for
advanced feeder terminal programming.

Serial communication

The feeder terminal has three serial commu-
nication ports, one on the front panel and two
on the rear panel.

Front panel optical connection for PC

The front panel is intended for the connection
of a PC for configuring the feeder terminal
with the CAP 50_ tools. The front interface
uses the SPA bus protocol.
The optical connector on the front panel iso-
lates the PC galvanically from the feeder ter-
minal. The front connector for the PC is
standardized for ABB relay products and
requires a specific opto cable. The cable is
connected to the serial RS-232 port of the PC.
The other communication parameters for the
rear RS-485 interface are also set in the Com-
munication menu of the REF 54_ feeder ter-
minal.
SPA/IEC_103 communication on the rear
connector X3.2
The 9-pin D-type subminiature male connec-
tor (RS-232 connection) on the rear panel
connects the feeder terminal to the distribu-
tion automation system via the SPA bus or the
IEC_103. The fibre-optic interface module
type RER 123 is used for connecting the
feeder terminal to the fibre-optic communica-
tion bus for SPA and IEC_103 protocol.
DNP3.0/Modbus communication on the
rear connector X3.2
The 9-pin D-type subminiature male connec-
tor (RS-232 connection) on the rear panel
connects the feeder terminal to the distribu-
tion automation system via the DNP 3.0 or
the Modbus protocol. The interface between
the feeder terminal and a RS-485 communi-
cation bus can be made through the RER 133
Bus Connection Module. The interface
between the feeder terminal and an optical
bus can be made through the RER 123 Bus
Connection Module.
REF 541, REF 543, REF 545.
IEC 61850 communication using SPA-ZC
400 on the rear connector X3.2
The 9-pin D-type subminiature male connec-
tor (RS-232 connection) on the rear panel
connects the feeder terminal to the distribu-
tion automation system via the IEC 61850
protocol. In the IEC 61850 mode, the SPA-
ZC 400 Bus Connection Module is needed.
Profibus-DPV1 communication using SPA-
ZC 302 on the rear connector X3.2
The 9-pin D-type subminiature male connec-
tor (RS-232 connection) on the rear panel
connects the feeder terminal to the distribu-
tion automation system via the Profibus pro-
tocol. The interface between the feeder
terminal and Profibus can be made through
the SPA-ZC 302 Gateway.
LON/SPA bus communication on the rear
connector X3.3
The 9-pin D-type subminiature female con-
nector (RS-485 connection) on the rear panel
connects the feeder terminal to the substation
automation system via the SPA bus or the
LON bus. The fibre-optic interface module
type RER 103 is used to connect the feeder
terminal to the fibre-optic communication
bus. The RER 103 module supports both SPA
bus and LON bus communication.

Self-supervision

The feeder terminal REF 54_ is provided
with an extensive self-supervision system.
The self-supervision system handles run-time
fault situations and informs the user of faults
via the HMI and LON/SPA bus communica-
tion.
When a fault has been detected, the green
Ready indicator starts flashing, a fault indica-
tion text is displayed on the HMI and an
event 0/E57 is generated. The fault indication
text on the HMI consists of two rows: a gen-
eral message 'internal fault', followed by the
generated IRF code of the fault.
The relay will try to recover from a fault
either by restarting the module (I/O module
or HMI) that reported the fault, or by restart-
ing the whole relay. During restarting the IRF
state will remain active until the internal self-
supervision program has determined that the
relay is operating normally. If the fault is still
persistent after restarting three times, the
relay will be in permanent IRF state.
1MRS750443-MBG