GE P442 - Communications Settings for Courier Protocol; “Communications” Column

P
44x/EN ST/Hb6
Setting
(ST) 4
-48 MiCOM P40 Agile
P442, P444
Menu Text Default Setting
Setting Range
Step Size
Min. Max.
MEASUREMENT SETUP
Fault Location Distance Distance / Ohm / % of Line
The calculated fault location can be displayed using one of several options selected using
this setting.
3.7 “Communications” column
The communications settings are available in the menu ‘Communications’ column and are
displayed when the “Comms Settings” setting (“Configuration” column) = “visible”.
3.7.1 Communications settings for courier protocol
Menu Text Default Setting
Setting Range
Step Size
Min. Max.
COMMUNICATIONS
RP1 Protocol Courier
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.
Physical Link Copper Copper, (RS485), Fibre optic
This cell defines whether an electrical connection (“Copper” or “RS485” according to
software version) 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.
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.
RP1 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.