C.3
Date Code 20130214 Instruction Manual SEL-2414 Transformer Monitor
SEL Communications Processors
SEL Communications Processor
SEL Communications Processor
SEL offers SEL communications processors, powerful tools for system integra-
tion and automation. The SEL-2030 series and the SEL-2020 communications
processors are similar, except that the SEL-2030 series has two slots for network
protocol cards. These devices provide a single point of contact for integration
networks with a star topology, as shown in Figure C.1.
In the star topology network in Figure C.1 the SEL communications processor
offers the following substation integration functions:
➤ Collection of real-time data from SEL and non-SEL IEDs
➤ Calculation, concentration, and aggregation of real-time IED data
into databases for SCADA, HMI, and other data consumers
➤ Access to the IEDs for engineering functions including
configuration, report data retrieval, and control through local
serial, remote dial-in, and Ethernet network connections
➤ Distribution of IRIG-B time synchronization signal to IEDs based
on external IRIG-B input, internal clock, or protocol interface
➤ Simultaneous collection of SCADA data and engineering
connection to SEL IEDs over a single cable
➤ Automated dial-out on alarms
SEL communications processors have 16 serial ports plus a front port. This port
configuration does not limit the size of a substation integration project, because
you can create a multitiered solution as shown in Figure C.2. In this multitiered
system, the lower-tier SEL communications processors forward data to the
upper-tier SEL communications processor that serves as the central point of
access to substation data and substation IEDs.
Figure C.1 SEL Communications Processor Star Integration Network
SEL Communications
Processor
To Engineering
Modem
To SCADA
Local HMI
SEL IED SEL IED SEL IED Non-SEL IED
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