Setting Guidelines - ABB RELION 670 SERIES Applications Manual

Line distance protection

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1MRK 506 369-UUS -

Line distance protection REL670 2.2 ANSI

Application manual

ANSI05000715 V4 EN

SPA communication structure for a remote monitoring system via a

substation LAN, WAN and utility LAN

SPA communication is mainly used for the Station Monitoring System. It can include

different IEDs with remote communication possibilities. Connection to a PC can be made

directly (if the PC is located in the substation), via a telephone modem through a telephone

network with ITU (former CCITT) characteristics or via a LAN/WAN connection.

<1000 m according to optical budget

<25 m (inside cubicle) according to optical budget

Functionality

The SPA protocol V2.5 is an ASCII-based protocol for serial communication. The

communication is based on a master-slave principle, where the IED is a slave and the PC

is the master. Only one master can be applied on each fibre optic loop. A program is

required in the master computer for interpretation of the SPA-bus codes and for translation

of the data that should be sent to the IED.

For the specification of the SPA protocol V2.5, refer to SPA-bus Communication Protocol

Setting guidelines

SPA, IEC 60870-5-103 and DNP3 use the same rear communication port. This port can

be set 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.

Station communication

Substation LAN

ANSI05000715-4-en.vsd