Firmware and Service Manual P54x/EN VH/La4
Version History
MiCOM P543, P544, P545 & P546
(
VH) 16-17
H
Relay type: P54x …
Software
Version
Major Minor
Hardware
Suffix
Original
Date of Issue
Description of Changes
S1
Compatibility
Technical
Documentation
A B Mar 2002
French language text improvements
Prevent a maintenance record when reading from an
inaccessible MODBUS register
Setting “Char Mod Time” was missing on P541 - P544
Prevents relay crashing when phase 2 software used with
phase 1 optos
Cell 0709 now replies OK change
Maximum pre-trigger time for disturbance recorder in
IEC 870-103-5 builds reduced to allow extraction via rear port
V2.05 or Later P54x/EN T/E21
12
Cont.
B B Nov 2002
All builds released to production. Based on 12A software
Resolved incorrect operation of C diff failure alarm in 3
terminal schemes
Correct operation of capacitive charging current compensation
in 3 terminal schemes
Resolved problem which caused short duration GPS failure
alarms
Resolved problem selecting setting group via optos
Resolved a circuit breaker lockout problem
Corrected the thermal measurement displayed when thermal
protection is disabled
Spanish text for user defined alarms contained an extra letter
Blocked overcurrent elements now generate events
Correct DNP3.0 operation of object 10
V2.05 or Later P54x/EN T/E21
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