Section 9 Establishing connection and verifying the
SPA/IEC- communication
About this chapter
This chapter contains instructions on how to establish connection and verify that
the SPA/IEC-communication operates as intended, when the IED is connected to a
monitoring or control system via the rear SPA/IEC port.
9.1
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.
9.1.1 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/Settings/General settings/Communication/SLM
configuration/Rear optical SPA/IEC port/Protocol selection
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/Settings/General settings/Communication/SLM configuration/Rear
optical SPA/IEC port/SPA
Set the same slave number and baud rate as set in the SMS system for the IED.
1MRK 504 088-UEN C Section 9
Establishing connection and verifying the SPA/IEC- communication
89
Installation and commissioning manual
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