Section 6  Establishing connection and verifying the
SPA/IEC communication
6.1  Entering settings
M11735-2 v2
If the IED is connected to a monitoring or control system via the rear SP
A/IEC103
port, the SPA/IEC103 port has to be set either for SPA or IEC103 use.
6.1.1  Entering SPA settings
M11735-7 v5
The SPA/IEC port is located on the rear side of the IED. Two types of interfaces
can be used:
• plastic fibres with connector type HFBR
• glass fibres with connector type ST
When using the SPA protocol, the rear SPA/IEC port must be set for SPA use.
Procedure:
1. Set the port for SPA use on the local HMI under Main menu /
Configuration /Communication /Station communication/Port
configuration/SLM optical serial port/PROTOCOL:1. When the
communication protocol is selected, the IED is automatically restarted, and
the port then operates as a SPA port.
2. Set the SlaveAddress and BaudRate for the rear SPA port on the local HMI
under Main menu/Configuration/Communication/Station
communication/SPA/SPA:1. Use the same settings for these as is set in the
SMS system for the IED.
6.1.2  Entering IEC settings
M11735-32 v5
The SPA/IEC port is located on the rear side of the IED. Two types of interfaces
can be used:
• plastic fibres with connector type HFBR
• glass fibres with connector type ST
When using the IEC protocol, the rear SPA/IEC port must be set for IEC use.
Procedure:
1MRK 505 378-UEN A Section 6
Establishing connection and verifying the SPA/IEC communication
Line differential protection RED670 2.2 IEC 63
Commissioning manual