Alstom MiCOM P54 Series, Technical Manual, Page: 159 / 1024

Settings P54x/EN ST/La4
MiCOM P543, P544, P545, P546
(ST) 4-81
ST
1.4.7.3 Comm ettings for DNP3.0 protocol
ng
unications s
Setting ra e
Menu text Default setting
Min. Max.
Step size
COMMUNICATIONS
RP1 Protocol DNP 3.0
Indicates the communic otocol that will be used on the rear communic rt. ations pr ations po
RP1 Address 3 0 65519 1
This cell sets the u
master sta niqu r the relay d by
tion software.
e address fo such that only one relay is accesse
RP1 Baud Rate 19200 bits/s
1200 bits/s, 2400 bits/s, 4800 bits/s, 9600
bits/s, 19200 bits/s or 38400 bits/s
This cell controls the com etween relay a It is munication speed b nd master station.
important that both relay and master station are set at the same speed setting.
RP1 Parity None Odd, Even or None
This cell controls the pa t used in the da
and master station are set with the same parity setting.
rity forma ta frames. It is important that both relay
RP1 Physical Link Copper Copper or Fiber Optic
This cell defines whethe electrical EIA(RS) 4 or fiber opt ection is sed r an 85 ic conn being u
for communication between the master station and relay. If ‘Fiber Optic’ is selected, the
optional fiber optic communications board will be required.
RP1 Time Sync. Disabled Disabled or Enabled
If set to ‘Enabled’ the DNP3.0 master station can be used to synchronize the time on the
relay. If set to ‘Disabled’ either the internal free running clock, or IRIG-B input are used.
Meas Scaling. Primary Primary, Secondary or Normalized
Setting to report analog values in terms of primary, secondary or normalized (with respect
to the CT/VT ratio setting) values.
Message Gap (ms) 0 0 50 1
This setting allows the master station to have an interframe gap.
DNP3.0 Need Time 10 mins 1 min 30 mins 1 min
The duration of time wa fore requesting a from the master. ited be nother time sync
DNP App Fragment 2048 100 2048 1
The maximum message length (application fragment size) transmitted by the relay.
DNP App Timeout 2s 1s 120s 1s
Duration of time waited, after sending a message fragment and awaiting a confirmation
from the master.
DNP SBO Timeout 10 s 1 s 10 s 1 s
Duration of time waited, af ct comm g an operate
confi the mast
ter receiving a sele
er.
and and awaitin
rmation from
DNP Link Timeout 60 s 0.1 s 60 s 0.1 s
Duration of time that the relay will wait for a Data Link Con
0 means data link support disabled and 1 to 120 seconds firm from the master. A value of
is the timeout setting.