7.12
SEL-700G Relay
Instruction Manual
Date Code 20170814
Communications
Communications Protocols
FTP Server
Use the single FTP (File Transfer Protocol) session to access the following
files:
CFG.XML
Configuration read-only file in XML format
CFG.TXT
Configuration read-only file in TXT format
ERR.TXT
Error read-only file in text format
SET_61850.CID
IEC 61850 CID read-write file
SET_xx.TXT
Setting files in TXT format
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. To create an FTP session, you need the FTP user name and
password. The default user name and password are FTPUSER and TAIL,
respectively.
Telnet Server
Use the Telnet session (TPORT default setting is port 23) to connect to the
relay to use the protocols, which are described in more detail below:
➤
SEL ASCII
➤
Compressed ASCII
➤
Fast Meter
➤
Fast Operate
➤
Fast SER
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.
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 F: IEC 61850 Communications.
Simple Network Time Protocol (SNTP)
When Port 1 (Ethernet port) setting ESNTP is not OFF, the internal clock of
the relay conditionally synchronizes to the time of day served by a Network
Time Protocol (NTP) server. The relay uses a simplified version of NTP called
the Simple Network Time Protocol (SNTP). SNTP is not as accurate as IRIG-
B. The relay can use SNTP as a less accurate primary time source, or as a
backup to the higher accuracy IRIG-B time source.
NOTE:
Use the
QUIT
command prior
to closing the Telnet-to-Host session
to set the relay to Access Level 0.
Otherwise, the relay remains at an
elevated access level until TIDLE
expires.
Summary of Contents for SEL-700G Series
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