Spa Communication Protocol - ABB REB670 Applications Manual

Section 16
Station communication
16.4
16.4.1
444

SPA communication protocol

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 188, 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.
Utility LAN
Remote monitoring
ANSI05000715 V3 EN
Figure 188: SPA communication structure for a remote monitoring system via a
substation LAN, WAN and utility LAN
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 <1000 m according to optical budget
plastic <20 m (inside cubicle) according to optical budget
WAN
IED
1MRK 505 337-UUS -
Substation LAN
IED IED
ANSI05000715-3-en.vsd
Application manual