-Version
P44x/EN VH/Hb
MiCOM P40 Agile P442, P444
(VC) 16-
Relay type: P441, P442, P444
Software
version
version
Model
number
Date of
issue
Full Description of changes S1 Compatibility
Branch A4.x : Second Rear Port - more alarms - new application feature
A4.0
A or B
for P441/442
A
for P444
07
09/2002
Second rear port/Slip frequency/Retrip CB/VTS phase selec/PPGround phase
selection/Extraction PSL/Serial Cmp Line/New DDB cells/Overlap Z/ Rev with
X4 limit/Winfeed/Floc in IEC /Dead time2/I Bk conduct.
V2.05 + patch
A4.1 07
12/ 2002 Bi phase ground & phase selection/Synchro VT bus side V2.07
A4.3 07
04/ 2003
Voltage memory improvement/compliant IEC103 with Px3x /DEF/Pswing &
glitchZ
V2.07
A4.4 07
08/2003
Synchro check function improvement/Tripping time stability for Z2 fault/Problem
of battery alarm when IEC103 communication resolved
V2.07
A4.5 07
09/2003
Disturbance (compressed or not compressed) and communication correction /
DEF/ Ext Csync/P.Phase ref Csync / Sync live-live / I broken Cond./ Px4X with
Px3x in IEC103/Battery Alarm IEC 103/31th December for Drec/2UN Vref
Sync/Z1 & Arg<55°/Zn-Zn+1 with +30msec
V2.07
A4.8
07
09/2004
Timesync cell in ModBus/Synchro TP bus/Optos taging in event/Dynamic
management Bus-Line for checksync /ModBus correction /DNP3/Frequency
tracking/Directionnal with Deltas&Classical are computed in parallel (No delay
between the algorithms)
V2.07
A4.9
07
05/2005
DNP3 with S1/ ModBus/ CB close DNP3/ Floc with evolving fault/ Status opto
with setting group/ Im displayed in Measurement mode/ VTS alarm using V2
V2.07
Note 1: The software version / hardware version / model number can be found through the setting in “system data” viat MiCOM S1 or LCD front panel.
Note 2: Version A4.0, A4.1, A4.3, A4.4 and A4.5 not distributed (mandatory upgrade). Version A4.8 and A4.9 (up to A4.9H): Recommanded upgrade.
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