SCHWEITZER ENGINEERING LABORATORIES
2350 NE Hopkins Court Pullman, WA 99163-5603 USA
Phone: (509) 332-1890 Fax: (509) 332-7990
E-mail: info@selinc.com Internet: www.selinc.com
SEL-2020 Communications Processor
Data Sheet
General Description: The SEL-2020 Communications Processor is a breakthrough for substation
communication and integration. It combines multiport communications, databases and processing,
nonvolatile memory, timekeeping and synchronization, alarm monitoring, and auxiliary control into one
compact, powerful, economical, easy-to-use, and rugged device.
• Automatically maintains databases for metering, events, and targets.
• Powerful 32-bit computer simultaneously supports 38400 baud on all master ports and 19200 baud on
all other ports.
• SEL
OGIC
®
control equations coordinate commands, messages, and I/O.
• Auto-configuration features simplify application settings with SEL relays.
• Versatile data-processing power handles most relays, meters, and SCADA systems.
• One device integrates most small substations.
• Easily cascaded for economical large-station solutions.
• Communications processing reduces burden on SCADA and other equipment.
• Handles binary and ASCII communications for versatile application.
• Can be a Modbus
®
RTU or Distributed Network Protocol (DNP) V3.00 Level 2 slave to ease data
collection and system control.
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