1MRS 751108-MUM
REX 521
47
Protection Relay
Technical Reference Manual, General
Modbus protocol baud rates 0.6/1.2/2.4/4.8/9.6/19.2 kbps
data bits 7/8 (ASCII/RTU)
parity no parity/odd/even
stop bits 1/2
Modbus modes ASCII, RTU
DNP 3.0 protocol baud rates 0.3/0.6/1.2/2.4/4.8/9.6/19.2
kbps
data bits 8
parity no parity/odd/even
stop bits 1/2
LON protocol bit rates 78.0 kbps/1.25 Mbps
Table 4.2.1-10 General
Toolboxes CAP 501, CAP 505, LIB 510, SMS 510
Events 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 (see “Related documents” on page 7).
Control functions See REX 521 Technical Reference Manual, Standard
Configurations (see “Related documents” on page 7).
Condition monitoring functions See REX 521 Technical Reference Manual, Standard
Configurations (see “Related documents” on page 7).
Measurement functions See REX 521 Technical Reference Manual, Standard
Configurations (see “Related documents” on page 7).
Self-supervision See “Self-supervision” on page 28.
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, see Installation Manual (see “Related
documents” on page 7).
Weight of the unit <5 kg
Table 4.2.1-9 Data communication (Continued)
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