3. Move to the first cell down (RP1 pr
otocol). This is a non-settable cell, which shows the chosen
communication protocol â in this case Courier.
COMMUNICATIONS
RP1 Protocol
Courier
4. Move down to the next cell (RP1 Addr
ess). This cell controls the address of the RP1 port on thje device. Up to
32 IEDs can be connected to one spur. It is therefore necessary for each IED to have a unique address so
that messages from the master control station are accepted by one IED only. Courier uses an integer
number between 1 and 254 for the Relay Address. It is set to 255 by default, which has to be changed. It is
important that no two IEDs share the same address.
COMMUNICATIONS
RP1 Address
100
5. Move down to the next cell (RP1 InactivTimer). This cell contr
ols the inactivity timer. The inactivity timer
controls how long the IED waits without receiving any messages on the rear port before revoking any
password access that was enabled and discarding any changes. For the rear port this can be set between 1
and 30 minutes.
COMMUNICATIONS
RP1 Inactivtimer
10.00 mins.
6. If the optional fibre optic connectors are fitted, the RP1 PhysicalLink cell is visible. This cell contr
ols the
physical media used for the communication (Copper or Fibre optic).
COMMUNICATIONS
RP1 PhysicalLink
Copper
7. Move down to the next cell (RP1 Car
d Status). This cell is not settable. It displays the status of the chosen
physical layer protocol for RP1.
COMMUNICATIONS
RP1 Card Status
K-Bus OK
P24xM Chapter 16 - Communications
P24xM-TM-EN-2.1 321
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