P54x/EN VH/La4 Firmware and Service Manual
Version History
(VH) 16-6 MiCOM P543, P544, P545 & P546
H
Relay type: P54x …
Software
Version
Major Minor
Hardware
Suffix
Original
Date of Issue
Description of Changes
S1
Compatibility
Technical
Documentation
J A Nov 2002
All builds released to production. Based on 05I 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 current
differential trips in some applications
Recommended upgrading to 05K or later
V2.0 or Later TG8613B
K A Feb 2003
All builds released to production. Based on 05I software
Resolved problem with IEC 60870-5-103 time synchronization
V2.0 or Later TG8613B
L A Jan 2004
Maintenance release based on 05K (not formally released)
Prevents compressed disturbance recorder stalling
Prevent a maintenance record when reading from an
inaccessible MODBUS register
V2.0 or Later TG8613B
M A Jun 2004
Maintenance release based on 05L
Improved self-checking of analogue data acquisition
Improved self checking of SRAM
Reception of MODBUS frame improved
Rejection of spurious messages injected onto RS485 network
improved
Permissive intertrip in dual redundant schemes corrected
V2.0 or Later TG8613B
05
Cont.
N A Jun 2005
Maintenance release based on 05M
Changed MODBUS driver
V2.0 or Later TG8613B
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