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GE UR Series Instruction Manual Page 97

Line differential relay.
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5 SETTINGS
The L90 supports the Manufacturing Message Specification (MMS) protocol as specified by the Utility Communication
Architecture (UCA). UCA/MMS is supported over two protocol stacks: TCP/IP over ethernet and TP4/CLNP (OSI) over eth-
ernet. The L90 operates as a UCA/MMS server. Appendix C describes the UCA/MMS protocol implementation in more
detail. The REMOTE INPUTS and REMOTE OUTPUT sections of Chapter 5: SETTINGS describes the peer-to-peer
GOOSE message scheme.
The UCA LOGICAL DEVICE setting represents the name of the MMS domain (UCA logical device) in which all UCA
objects are located.
f) WEB SERVER HTTP PROTOCOL
Ö
PATH: SETTINGS
PRODUCT SETUP
COMMUNICATIONS
WEB SERVER
HTTP PROTOCOL
MESSAGE
The L90 contains an embedded web server. That is, the L90 is capable of transferring web pages to a web browser such as
Microsoft Internet Explorer or Netscape Navigator. This feature is available only if the L90 has the ethernet option installed.
The web pages are organized as a series of menus that can be accessed starting at the L90 "Main Menu". Web pages are
available showing DNP and IEC 60870-5-104 points lists, Modbus registers, Event Records, Fault Reports, etc. The web
pages can be accessed by connecting the UR and a computer to an ethernet network. The Main Menu will be displayed in
the web browser on the computer simply by entering the IP address of the L90 into the "Address" box on the web browser.
g) TFTP PROTOCOL
Ö
PATH: SETTINGS
PRODUCT SETUP
COMMUNICATIONS
TFTP PROTOCOL
MESSAGE
MESSAGE
MESSAGE
The Trivial File Transfer Protocol (TFTP) can be used to transfer files from the UR over a network. The L90 operates as a
TFTP server. TFTP client software is available from various sources, including Microsoft Windows NT. The file "dir.txt" is an
ASCII text file that can be transferred from the L90. This file contains a list and description of all the files available from the
UR (event records, oscillography, etc.).
GE Power Management
ÖØ
ÖØ
COMMUNICATIONS
HTTP TCP PORT
NUMBER:
80
ÖØ
ÖØ
COMMUNICATIONS
TFTP MAIN UDP PORT
NUMBER:
69
TFTP DATA UDP PORT 1
NUMBER:
0
TFTP DATA UDP PORT 2
NUMBER:
0
L90 Line Differential Relay
WEB SERVER HTTP PROTOCOL
Range: 1 to 65535 in steps of 1
TFTP PROTOCOL
Range: 1 to 65535 in steps of 1
Range: 0 to 65535 in steps of 1
Range: 0 to 65535 in steps of 1
5.2 PRODUCT SETUP
5
5-13

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