Verifying Spa Communication; Verifying Iec Communication; Fiber Optic Loop - ABB Relion 670 Series Commissioning Manual

Section 6
Establishing connection and verifying the SPA/IEC communication
6.2.1

Verifying SPA communication

Procedure
1. Use a SPA-emulator and send "RF" to the IED. The answer from the IED should be the type
and version of it, for example, "REL670 2.1...".
2. Generate one binary event by activating a function, which is configured to an EVENT block
where the used input is set to generate events on SPA. The configuration must be made with
the PCM600 software. Verify that the event is presented in the SMS/SCS system.
During the following tests of the different functions in the IED, verify that the events and indications in
the SMS/SCS system are as expected.
6.2.2

Verifying IEC communication

To verify that the IEC communication with the IEC master system is working, there are some different
methods. Choose one of the following.
Procedure
1. Check that the master system time-out for response from the IED, for example after a setting
change, is > 40 seconds.
2. Use a protocol analyzer and record the communication between the IED and the IEC master.
Check in the protocol analyzer's log that the IED answers the master messages.
3. Generate one binary event by activating a function that is configured to an event block where
the used input is set to generate events on IEC. The configuration must be made with the
PCM600 software. Verify that the event is presented in the IEC master system.
During the following tests of the different functions in the IED, verify that the events and indications in
the IEC master system are as expected.
6.3

Fiber optic loop

The SPA communication is mainly used for SMS. It can include different numerical IEDs with remote
communication possibilities. The fiber optic loop can contain < 20-30 IEDs depending on
requirements on response time. Connection to a personal computer (PC) can be made directly (if the
PC is located in the substation) or by telephone modem through a telephone network with ITU
(CCITT) characteristics.
Table 13:
glass
plastic
52
Max distances between IEDs/nodes
< 1000 m according to optical budget
< 25 m (inside cubicle) according to optical budget
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