GE T35 Instruction Manual page 95

5 SETTINGS
domain contains a large number of UR-series specific data items that are not available in the IEC 61850 logical nodes. This
data does not follow the IEC 61850 naming conventions. For communications schemes that strictly follow the IEC 61850
standard, this setting should be "Disabled".
The IEC 61850 logical node name prefix settings are used to create name prefixes to uniquely identify each logical node.
For example, the logical node "MMXU1" may have the name prefix "abc". The full logical node name will then be
"abcMMXU1". This conforms to the IEC 61850 standard.
The MMXU deadband settings represent the deadband values used to determine when the update the MMXU "mag" and
"cVal" values from the associated "instmag" and "instcVal" values. The "mag" and "cVal" values are used for the IEC 61850
buffered and unbuffered reports. These settings correspond to the associated "db" data items in the CF functional con-
straint of the MMXU logical node, as per the IEC 61850 standard. According to IEC 61850-7-3, the db value "shall repre-
sent the percentage of difference between the max and min in units of 0.00%". Thus, it is important to know the maximum
value for each MMXU measured quantity, since this represents the 100.00% value for the deadband. The minimum value
for all quantities is 0; the maximum values are as follows:
phase current: 46 × phase CT primary setting
neutral current: 46 × ground CT primary setting
voltage: 275 × VT ratio setting
power (real, reactive, and apparent): 46 × phase CT primary setting × 275 × VT ratio setting
frequency: 90 Hz
power factor: 2
The GGIO2 control configuration settings are used to set the control model for each input. The available choices are "2"
(direct control) and "3" (SBO with normal security). The GGIO2 control points are used to control the T35 virtual inputs.
Since GSSE/GOOSE messages are multicast ethernet by specification, they will not usually be forwarded by net-
work routers. However, GOOSE messages may be fowarded by routers if the router has been configured for VLAN
functionality.
NOTE
g) WEB SERVER HTTP PROTOCOL
!
PATH: SETTINGS PRODUCT SETUP
# WEB SERVER
# HTTP PROTOCOL
The T35 contains an embedded web server and 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 T35 has the ethernet option installed. The web
pages are organized as a series of menus that can be accessed starting at the T35 "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 T35 into the "Address" box on the web browser.
GE Multilin
!" !"
COMMUNICATIONS WEB SERVER HTTP PROTOCOL
HTTP TCP PORT
NUMBER: 80
T35 Transformer Management Relay
5.2 PRODUCT SETUP
Range: 1 to 65535 in steps of 1
5
5-17