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1MRS 751108-MUM
Protection Relay
Technical Reference Manual, General
REX 521
33
Table 4.2.1-9
Data communication
Rear interface, connector X3.2
and X3.3
Fibre-optic interface
IEC_103 bus or SPA bus, selectable. Also LON bus in the REX 521
xxxxL versions.
data transfer rates
SPA bus: 4.8/9.6/19.2 kbps
LON bus: 78.0 kbps/1.25 Mbps
IEC_103 bus: 9.6/19.2 kbps
Front panel
optical RS 232 connection
data code
ASCII
data transfer rates
4.8/9.6/19.2 kbps, selectable
serial communication cable
1MKC 9500011
Asynchronous serial
communication parameters
start bits
1
data bits
7
stop bits
1
parity
even
baud rate
9.6 kbps (default)
Communication protocols
SPA-bus protocol
Table 4.2.1-10 General
Toolboxes
CAP 501, CAP 505, LIB 510, SMS 510
110
All events are recorded in higher level syntax:
reason, time, date are in clear text format in the
selected language. The last 50 events are
recorded.
Data recording
records operate values
Protection functions
See REX 521 Technical Reference Manual,
Standard Configurations (1MRS 751802-MUM).
Control functions
See REX 521 Technical Reference Manual,
Standard Configurations (1MRS 751802-MUM).
Condition monitoring functions
See REX 521 Technical Reference Manual,
Standard Configurations (1MRS 751802-MUM).
Measurement functions
See REX 521 Technical Reference Manual,
Standard Configurations (1MRS 751802-MUM).
Self-supervision
See “Self-supervision” on page 20.
Mechanical dimensions
Width: 148.8 mm (1/3 of a 19” rack)
Height, frame: 265.9 mm (6U)
Height, box: 249.8 mm
Depth: 235 mm
For dimension drawings, refer to Installation
Manual (1MRS 750526-MUM).
Weight of the unit
<5 kg
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