Alstom MiCOM P846, Technical Manual

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P846/EN ST/D Settings
(ST) 4-12
MiCOM P846
ST
Menu Text Default Settings Available settings
MEASUREMENT SETUP
Remote2 Values Primary Primary/Secondary
The setting defines whether the values measured via the Second Rear Communication
port are displayed in primary or secondary terms.
1.3.6 Communications
The communications settings apply to the rear communications ports only and will depend
upon the particular protocol being used. Further details are given in the SCADA
Communications chapter (P846/EN SC).
These settings are available in the menu ‘Communications’ column and are displayed.
1.3.6.1 Communications settings for courier protocol
Setting Range
Menu Text Default Setting
Min. Max.
Step Size
COMMUNICATIONS
RP1 Protocol Courier
Indicates the communications protocol that will be used on the rear communications port.
RP1 Remote Address 255 0 255 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 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.
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
Frame IEC60870 FT1.2 Frame 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.
1.3.6.2 Communications settings for DNP3.0 protocol
Setting Range
Menu Text Default Setting
Min. Max.
Step Size
COMMUNICATIONS
RP1 Protocol DNP 3.0
Indicates the communications protocol that will be used on the rear communications port.
RP1 Address 3 0 65519 1
This cell sets the unique address for the relay such that only one relay is accessed by
master station software.