GE P444 User Manual

Setting
P44x/EN ST/Hb
6
MiCOM P40 Agile
P442, P444 (ST) 4-
51
3.7.4 Communication settings for DNP3.0 protocol
Menu Text Default Setting
Setting Range
Step Size
Min. Max.
COMMUNICATIONS
RP1 Protocol Protocol
Indicates the communications protocol that will be used on the rear communications port.
RP1 Address 255 7 34 1
This cell sets the unique address for the relay such that only one relay is accessed by
master station software.
RP1 Inactiv Timer 15 mins. 1 mins. 30 mins. 1 min.
This cell controls how long the relay will wait without receiving any messages on the rear
port before it reverts to its default state, including resetting any password access that was
enabled.
Baud Rate 19200 bits/s 9600 bits/s, 19200 bits/s or 38400 bits/s
This cell controls the communication speed between relay and master station. It is important
that both relay and master station are set at the same speed setting.
Parity None Odd, Even or None
This cell controls the parity format used in the data frames. It is important that both relay
and master station are set with the same parity setting.
Measur’t period 10s 1s 60s 1s
This cell controls the time interval that the relay will use between sending measurement
data to the master station.
Physical Link RS485 RS485, Fibre optic
This cell defines whether an electrical connection (“Copper”) or fiber optic connection is
being used for communication between the master station and relay. The optional fiber optic
communications board will be required if ‘Fiber optic’ is to be selected.
Time Sync Disabled Disabled, Enabled
This setting enables or disables time synchronization with master Clock.
Date/Time Format Disabled Disabled, Enabled
This cell allows the user to set the “Modbus IEC Time and Date format” at the user interface
and front/2
nd
port besides the Modbus 1
st
rear port.
When ‘Disabled’ is selected, the “Standard IEC” time format complies with IEC 60870-5-4
requirements such that byte 1 of the information is transmitted first, followed by bytes 2
through 7.
When ‘Enabled’ is selected, the transmission of information is reversed (Reverse IEC time
format).
RP1 Status Data
This cell indicates the status of the rear communication board.
RP1 Port Config. KBus KBus or EIA(RS)485
This cell defines whether an electrical KBus or EIA(RS)485 is being used for communication
between the master station and relay.
RP1 Comms. Mode IEC60870 FT1.2
IEC60870 FT1.2 or 10-Bit No Parity
The choice is either IEC60870 FT1.2 for normal operation with 11-bit modems, or 10-bit no
parity.

GE P444 Specifications

General

Brand	GE
Model	P444
Category	Protection Device
Language	English