Spa Application; Spa Communication Protocol; Application - ABB Relion 650 Series Communication Protocol Manual

1MRK 511 379-UEN A
Section 2
2.1

SPA communication protocol

2.1.1

Application

SPA communication protocol as an alternative to IEC 60870-5-103. The same communication
port as for IEC 60870-5-103 is used.
When communicating with a PC connected to the utility substation LAN, via WAN and the
utility office LAN, as shown in figure 2, and using the rear Ethernet port on the optical Ethernet
module (OEM), the only hardware required for a station monitoring system is:
• Optical fibres from the IED to the utility substation LAN.
• PC connected to the utility office LAN.
Remote
monitoring
IEC05000715 V4 EN-US
Figure 2:
The SPA communication is mainly used for the Station Monitoring System. It can include
different IEDs with remote communication possibilities. Connection to a computer (PC) can be
made directly (if the PC is located in the substation) or by telephone modem through a
telephone network with ITU (former CCITT) characteristics or via a LAN/WAN connection.
glass
plastic
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 fiber 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.
Communication protocol manual

SPA application

Utility LAN
SPA communication structure for a remote monitoring system via a
substation LAN, WAN and utility LAN
<1000 m according to optical budget
<25 m (inside cubicle) according to optical budget
WAN
IED IED
Section 2
SPA application
SEMOD115767-5 v5
Substation LAN
IED
IEC05000715-4-en.vsd
SEMOD115767-25 v2
IP14614-1 v1
IP14785-1 v1
9