Schweitzer Engineering Laboratories SEL-751 - Page 61

2.5
Date Code 20170927 Instruction Manual SEL-751 Relay
Installation
I/O Configuration
➤ Event Messenger
➤ C37.118 (Synchrophasor Data)
PORT 1 (Ethernet) supports the following protocols:
➤ SEL ASCII and Compressed ASCII
➤ SEL Fast Meter
➤ SEL Fast Operate
➤ SEL Fast SER
➤ SEL Fast Message Unsolicited Write
➤ SEL Settings File Transfer
➤ C37.118 (Synchrophasor Data)
➤ Modbus TCP/IP
➤ DNP3 LAN/WAN
➤ IEC 61850
➤ Simple Network Time Protocol (SNTP)
➤ FTP
➤ Telnet
PORT 2 and PORT 3 support the following protocols:
➤ Modbus RTU Slave
➤ SEL ASCII and Compressed ASCII
➤ SEL Fast Meter
➤ SEL Fast Operate
➤ SEL Fast SER
➤ SEL Fast Message Unsolicited Write
➤ SEL Settings File Transfer
➤ SEL MIRRORED BITS (MBA, MBB, MB8A, MB8B, MBTA,
MBTB)
➤ Event Messenger
➤ DNP3 Level 2 Outstation
➤ C37.118 (Synchrophasor Data)
➤ IEC 60870-5-103
Communications Card
Either the DeviceNet (see Appendix H: DeviceNet Communications) or the
EIA-232/ EIA-485 communications card is supported in Slot C. The
EIA-232/EIA-485 card provides one serial port with one of the following two
serial port interfaces:
➤ Port 4A, an isolated EIA-485 serial port interface
➤ Port 4C, a nonisolated EIA-232 serial port interface, supporting
the +5 Vdc interface