Alstom MiCOM P546 - Page 983

Firmware and Service Manual P54x/EN VH/La4 Version History MiCOM P543, P544, P545 & P546
(
VH) 16-7
V
H
Relay type: P54x …
Software
Version
Major Minor
Hardware
Suffix
Original
Date of Issue
Description of Changes
S1
Compatibility
Technical
Documentation
A A May 2001
Internal Release for validation only - runs on phase 1 hardware
with an old co-processor board
 In non GPS mode the char modification timer has been made
visible in P545/6
 The char modification timer setting was not being seen by the
co-processor board
 GPS detected flag was not cleared when switching from GPS
to non GPS mode
 Equal prop delay command was not resetting inhibit following
a comms. switch
 Problem displaying Rx & Tx when comms. path was short
fixed
 Note: Non of the above are relevant to software in production
- -
06
B A Jun 2001
Internal release for validation only - runs on phase 1 hardware with
an old co-processor board
 Prevent loss of measurements in 3 ended schemes
 Added a 1s drop off timer to C diff inhibit
 Changed max value of char mod timer to 2s
 Increased number of PSL timers to 16 (all models)
 Corrected PSL default reference
 Added a setting to P543/5 AR to select which edge of trip
initiates AR
 Added 3 DDB signals to block distance
 Removed force 3 pole trip DDB
- -