Communication Settings For Iec 60870-5-103 - GE MiCOM P40 Agile Technical Manual

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Setting
MiCOM P40 Agile P442, P444
3.7.2

Communication settings for IEC 60870-5-103

Menu Text
COMMUNICATIONS
RP1 Protocol
Indicates the communications protocol that will be used on the rear communications port.
RP1 Address
This cell sets the unique address for the relay such that only one relay is accessed by
master station software.
RP1 Inactiv Timer
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
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.
Measur't period
This cell controls the time interval that the relay will use between sending measurement
data to the master station.
Physical Link
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.
CS103 Blocking
There are three settings associated with this cell:
Disabled
Monitor Blocking
Command Blocking –
RP1 Status
This cell indicates the status of the rear communication board.
RP1 Port Config.
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
The choice is either IEC60870 FT1.2 for normal operation with 11-bit modems, or 10-bit no
parity.
RP1 Baud Rate
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.
Default Setting
IEC60870-5-103
255
15 mins.
19200 bits/s
10s
RS485
Disabled
No blocking selected.
When the monitor blocking DDB Signal is active high, either by
energizing an opto input or control input, reading of the status
information and disturbance records is not permitted. When in this
mode the relay returns a "termination of general interrogation"
message to the master station.
When the command blocking DDB signal is active high, either by
energizing an opto input or control input, all remote commands will
be ignored (i.e. CB Trip/Close, change setting group etc.). When in
this mode the relay returns a "negative acknowledgement of
command" message to the master station.
Data
KBus
IEC60870 FT1.2
19200 bits/s
Setting Range
Min.
Max.
7
34
1 mins.
30 mins.
9600 bits/s, 19200 bits/s or 38400 bits/s
1s
60s
RS485, Fibre optic
Disabled, Monitor blocking,
Command blocking
KBus or EIA(RS)485
IEC60870 FT1.2 or 10-Bit No Parity
9600 bits/s, 19200 bits/s or 38400 bits/s
P44x/EN ST/Hb6
(ST) 4-49
Step Size
1
1 min.
1s

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P442P444

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