Section 8 Establishing connection and verifying the
SPA/IEC communication
8.1 Entering settings
If the IED is connected to a monitoring or control system via the rear SPA/IEC port,
the SPA/IEC port has to be set either for SPA or IEC use.
8.1.1 Entering SPA settings
The SPA/IEC port is located on the rear side of the IED. Two types of interfaces can
be used:
• for plastic fibres with connector type HFBR
• for glass fibres with connectors type ST
When using the SPA protocol, the rear SPA/IEC port must be set for SPA use.
Procedure
1. Set the operation of the rear optical SPA/IEC port to “SPA”.
The operation of the rear SPA port can be found on the local HMI under Main
menu/Configuration/Communication/Station communication/Port
configuration/SLM optical serial port/PROTOCOL:1
When the setting is entered the IED restarts automatically. After the restart the
SPA/IEC port operates as a SPA port.
2. Set the slave number and baud rate for the rear SPA port
The slave number and baud rate can be found on the local HMI under Main
menu/Configuration/Communication/Station communication/SPA/SPA:1
Set the same slave number and baud rate as set in the SMS system for the IED.
8.1.2 Entering IEC settings
When using the IEC protocol, the rear SPA/IEC port must be set for IEC use.
Two types of interfaces can be used:
• for plastic fibres with connector type HFBR
• for glass fibres with connectors type ST
Procedure
1MRK502053-UEN B Section 8
Establishing connection and verifying the SPA/IEC communication
Generator protection REG670 2.0 IEC 85
Commissioning manual
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