Firmware and Service Manual P54x/EN VH/La4
Version History
MiCOM P543, P544, P545 & P546
(
VH) 16-15
H
Relay type: P54x …
Software
Version
Major Minor
Hardware
Suffix
Original
Date of Issue
Description of Changes
S1
Compatibility
Technical
Documentation
F B Feb 2003
All builds ready. Based on 11E software
Resolved several problems related to the IEC 60870-5-103
protocol
Resolved problem which may cause short duration current
differential trips
Corrected the format used to display frequency over the
MODBUS interface
Recommended upgrading to 11G or later
V2.03 or Later P54x/EN T/D11
G B May 2003
All builds ready. Based on 11F software
Changes to clock recovery circuits to improve operation with
multiplexers.
PSL logic for user defined intertrips corrected P545 & P546
Permissive intertrip in dual redundant schemes corrected
Prevented unwanted comms. delay alarms
V2.03 or Later P54x/EN T/D11
H B Sept 2003
All builds ready. Based on 11G software
Prevents compressed disturbance recorder stalling
Prevents CS103 reporting more non-compressed disturbance
records than actually present
V2.03 or Later P54x/EN T/D11
11
Cont.
I B Oct 2004
All builds released to production. Based on 11G software
Improved self-checking of analogue data acquisition
Differential intertrip in IEC 60870-5-103 reported with correct
FAN
SRAM self checking added to co-processor board
V2.03 or Later P54x/EN T/D11
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