ABB Relion 670 Series Applications Manual page 446

Section 17
Station communication
17.4.2.3 Setting guidelines
Settings
The parameters for the multiple command function are set via PCM600.
The Mode setting sets the outputs to either a Steady or Pulsed mode.
17.5 SPA communication protocol
17.5.1 Application
SPA communication protocol is an alternative to IEC 60870-5-103, and they use the same rear
communication port.
When communicating with a PC connected to the utility substation LAN via WAN and the utility office
LAN (see Figure 227), and when using the rear optical Ethernet port, the only hardware required for a
station monitoring system is:
• Optical fibers from the IED to the utility substation LAN
• PC connected to the utility office LAN
Remote
monitoring
ANSI05000715 V4 EN-US
Figure 227: SPA communication structure for a remote monitoring system via a substation 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.
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
440
Utility LAN
WAN and utility LAN
<1000 m according to optical budget
<25 m (inside cubicle) according to optical budget
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WAN
IED IED
1MRK 505 370-UUS Rev. K
Substation LAN
IED
ANSI05000715-4-en.vsd
Busbar protection REB670
Application manual
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