Schweitzer Engineering Laboratories SEL-387E - Iec 61850; Ping Server; Telnet Server; General Protocols

7-10 Communications Date Code 20080110
SEL-387E Instruction Manual
FTP is a standard TCP/IP protocol for exchanging files. A free FTP application is included with
most web browser software. You can also obtain a free or inexpensive FTP application from the
Internet. When you connect to the relay Ethernet port, you will find files stored in the root (top-
level) directory.
Telnet Server
Use the single Telnet-to-card session (TPORTC default setting is port 1024) to connect to the
communications card SEL ASCII protocol and work with the communications card. Use the
Telnet-to-host session (TPORT default setting is port 23) to connect to the relay (host) to use the
protocols, which are described in more detail below:
• SEL ASCII
• Compressed ASCII
• Fast Meter
• Fast Operate
Telnet is a terminal connection across a TCP/IP network that operates in a manner very similar
to a direct serial port connection to one of the relay ports. As with FTP, Telnet is a part of
TCP/IP. A free Telnet application is included with most computer operating systems, or you can
obtain low-cost or free Telnet applications on the Internet.
Note: Use the QUIT command prior to closing the Telnet-to-Host session to set the relay to
Access Level 0. Otherwise the relay will remain at an elevated access level until TIDLE
expires.
Ping Server
Use a Ping client with the relay Ping server to verify that your network configuration is correct.
Ping is an application based on ICMP over an IP network. A free Ping application is included
with most computer operating systems.
IEC 61850
Use as many as six sessions of MMS over a TCP network to exchange data with the relay. Use
GOOSE to do real-time data exchange with as many as 16 incoming messages and 8 outgoing
messages. For more details on the IEC 61850 protocol, see Appendix H: IEC 61850
Communications.
General Protocols
SEL ASCII Protocol
SEL ASCII protocol provides an interface that is compatible with terminals or terminal
emulators that support ASCII. The protocol is described in more detail in
SEL ASCII Protocol
Details.