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GE UR Series Instruction Manual Page 96

Line differential relay.
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5.2 PRODUCT SETUP
The
USER MAP FOR DNP ANALOGS
smaller Modbus User Map. This can be useful for users wishing to read only selected Analog Input points from the L90.
See Appendix E for more information
The
NUMBER OF SOURCES IN ANALOG LIST
are included in the Analog Inputs points list. This allows the list to be customized to contain data for only the sources that
are configured. This setting is relevant only when the User Map is not used.
The
DNP SCALE FACTOR
log Input data into types: current, voltage, power, energy, and other. Each setting represents the scale factor for all Analog
Input points of that type. For example, if the
Input points that are voltages will be returned with values 1000 times smaller (e.g. a value of 72000 V on the L90 will be
returned as 72). These settings are useful when Analog Input values must be adjusted to fit within certain ranges in DNP
masters. Note that a scale factor of 0.1 is equivalent to a multiplier of 10 (i.e. the value will be 10 times larger).
The
DNP DEFAULT DEADBAND
containing Analog Input data. These settings group the L90 Analog Input data into types: current, voltage, power, energy,
and other. Each setting represents the default deadband value for all Analog Input points of that type. For example, in order
to trigger unsolicited responses from the L90 when any current values change by 15 A, the
setting should be set to 15. Note that these settings are the default values of the deadbands. DNP object 34 points
BAND
can be used to change deadband values, from the default, for each individual DNP Analog Input point. Whenever power is
removed and re-applied to the L90, the default deadbands will be in effect.
The
DNP TIME SYNC IIN PERIOD
Changing this time allows the DNP master to send time synchronization commands more or less often, as required.
The
DNP MESSAGE FRAGMENT SIZE
fragment sizes allow for more efficient throughput; smaller fragment sizes cause more application layer confirmations to be
5
necessary which can provide for more robust data transfer over noisy communication channels.
The
DNP BINARY INPUTS USER MAP
DNP Binary Inputs list on the L90 contains 928 points representing various binary states (contact inputs and outputs, virtual
inputs and outputs, protection element states, etc.). If not all of these points are required in the DNP master, a custom
Binary Inputs points list can be created by selecting up to 58 blocks of 16 points. Each block represents 16 Binary Input
points. Block 1 represents Binary Input points 0 to 15, block 2 represents Binary Input points 16 to 31, block 3 represents
Binary Input points 32 to 47, etc. The minimum number of Binary Input points that can be selected is 16 (1 block). If all of
the
BIN INPUT BLOCK X
Binary Inputs points list from the
When using either of the User Maps for DNP data points (Analog Inputs and/or Binary Inputs), for UR relays
with the ethernet option installed, check the "DNP Points Lists" L90 web page to ensure the desired points
NOTE
lists have been created. This web page can be viewed using Internet Explorer or Netscape Navigator by
entering the L90 IP address to access the L90 "Main Menu", then by selecting the "Device Information
Menu", and then selecting the "DNP Points Lists".
e) UCA/MMS PROTCOL
Ö
PATH: SETTINGS
PRODUCT SETUP
COMMUNICATIONS
UCA/MMS PROTOCOL
MESSAGE
MESSAGE
MESSAGE
5-12
setting allows the large pre-defined Analog Inputs points list to be replaced by the much
setting allows the selection of the number of current/voltage source values that
settings are numbers used to scale Analog Input point values. These settings group the L90 Ana-
DNP VOLTAGE SCALE FACTOR
settings are the values used by the L90 to determine when to trigger unsolicited responses
setting determines how often the "Need Time" Internal Indication (IIN) bit is set by the L90.
setting determines the size, in bytes, at which message fragmentation occurs. Large
setting allows for the creation of a custom DNP Binary Inputs points list. The default
settings are set to "Not Used", the standard list of 928 points will be in effect. The L90 will form the
settings up to the first occurrence of a setting value of "Not Used".
BIN INPUT BLOCK X
ÖØ
COMMUNICATIONS
DEFAULT GOOSE UPDATE
TIME: 60 s
UCA LOGICAL DEVICE:
UCADevice
UCA/MMS TCP PORT
NUMBER:
102
L90 Line Differential Relay
setting is set to a value of 1000, all DNP Analog
ÖØ
UCA/MMS PROTOCOL
Range: 1 to 60 s in steps of 1
See UserSt BIT PAIRS in the REMOTE OUTPUTS section.
Range: Up to 16 alphanumeric characters representing the name of
the UCA logical device.
Range: 1 to 65535 in steps of 1
5 SETTINGS
DNP CURRENT DEFAULT DEAD-
GE Power Management

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