Alstom MiCOM P54 Series, Technical Manual

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P54x/EN ST/La4 Settings
(ST) 4-80
MiCOM P543, P544, P545, P546
ST
s settings for IEC 60870-5-103 protocol
ing range
1.4.7.2 Communication
Sett
Menu text Default setting
Min. Max.
Step size
COMMUNICATIONS
RP1 Protocol IEC60870-5-103
Indicates the communications protocol that will be used on the rear communications port.
RP1 Address 1 0 247 1
This cell sets the unique address for the relay such that only one relay is accessed by
master station software.
RP1 Inactivity Timer 15 mins. 1 min. 30 mins. 1 min.
This cell controls how long the relay will wait without receiving any messages on the rear
s to its default state, including resetting any password access that was port before it revert
enabled.
RP1 Baud Rate 19200 bits/s 9600 bits/s or 19200 bits/s
This cell controls the co ion speed bet r station. It is mmunicat ween relay and maste
important that both relay and master station are set at the same speed setting.
RP1 Measure’t.
Period
15 s 1 s 60 s 1 s
This cell controls the time interval that the relay will use between sending measurement
data to the master station.
RP1 Physical Link Copper Copper or Fiber Optic
This cell defines whether an electrical EIA(RS) 485 or fiber optic connection is being used
for communication between the master station and relay. If ‘Fiber Optic’ is selected, the
optional fiber optic communications board will be required.
RP1 CS103 Blocking Disabled
Disabled, Monitor Blocking, or Command
Blocking
There are three settings associated with this cell:
Disabled - No blocking selected.
Monitor Blocking - 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
ination of ral interrogation”
message to the master .
ther by
ds will
b i.e. CB Trip/ group etc.). When in
wledgement of
“term
station
gene
Command Blocking - When the command blocking DDB signal is active high, ei
energizi an opto input comman ng
e ignored (
or control input, all remote
Close, change setting
this mode the relay returns a “negative ackno
command” message to the master station.