GE P444 User Manual

P44x/EN FD/H
b6 Firmware D
esign
(FD) 8
-6 MiCOM P40 Agile
P442, P444
Main processor board
Relay board
Power supply board Transformer board
Input board
Parallel data bus
E²PROM
SRAM
Flash
EPROM
CPU
Front LCD panel
RS232 Front comms port
Parallel test port
LEDs
Current & voltage inputs (6 to 8)
Digital inputs (x8 or x16 or x24)
Power
supply
Rear RS485
communication port
Output relay contacts (x14 or x21 or x32)
ADC
IRIG-B board
optional
IRIG-B signal
Fibre optic
rear comms
port optional
Output relays
Opto-isolated
inputs
Analogue input signals
Power supply (3 voltages),
rear comms data
Digital input values
Power supply, rear comms
data, output relay status
Timing data
Watchdog
contacts
Field
voltage
Serial data bus (sample data)
Alarm, event, fault,
disturbance &
maintenance record
Present values
of all
settings
Comms between
main & coprocessor
boards
CPU code & data,
setting
database data
CPU code & data
Default settings &
parameters, language text,
software code
Battery
backed-up
SRAM
CPU
FPGA SRAM
Coprocessor board
P3026ENb
Figure 1 - Relay modules and information flow

GE P444 Specifications

General

Brand	GE
Model	P444
Category	Protection Device
Language	English