Verifying The Communication; 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

Verifying the communication

To verify that the rear communication with the SMS/SCS system is working, there are some
different methods. Choose one of the following.
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
58
Max distances between IEDs/nodes
< 1000 m according to optical budget
< 25 m (inside cubicle) according to optical budget
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