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GE L60 Instruction Manual Page 158

Line phase comparison system, ur series.
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5.2 PRODUCT SETUP
The
DNP UNSOL RESPONSE FUNCTION
mechanism. The
DNP UNSOL RESPONSE TIMEOUT
response. The
DNP UNSOL RESPONSE MAX RETRIES
ited response without receiving confirmation from the master; a value of "255" allows infinite re-tries. The
RESPONSE DEST ADDRESS
ited responses are sent is determined by the L60 from the current TCP connection or the most recent UDP message.
The DNP scale factor settings are numbers used to scale analog input point values. These settings group the L60 analog
input data into the following types: current, voltage, power, energy, power factor, and other. Each setting represents the
scale factor for all analog input points of that type. For example, if the
all DNP analog input points that are voltages will be returned with values 1000 times smaller (for example, a value of 72000
V on the L60 will be returned as 72). These settings are useful when analog input values must be adjusted to fit within cer-
tain ranges in DNP masters. Note that a scale factor of 0.1 is equivalent to a multiplier of 10 (that is, the value will be 10
times larger).
The
DNP DEFAULT DEADBAND
settings group the L60 analog input data into the following types: current, voltage, power, energy, power factor, and other.
Each setting represents the default deadband value for all analog input points of that type. For example, to trigger unsolic-
ited responses from the L60 when any current values change by 15 A, the
be set to "15". Note that these settings are the deadband default values. DNP object 34 points can be used to change dead-
band values, from the default, for each individual DNP analog input point. Whenever power is removed and re-applied to
the L60, the default deadbands will be in effect.
The L60 relay does not support energy metering. As such, the
DEFAULT DEADBAND
NOTE
The
DNP TIME SYNC IIN PERIOD
5
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
necessary which can provide for more robust data transfer over noisy communication channels.
When the DNP data points (analog inputs and/or binary inputs) are configured for Ethernet-enabled relays, check
the "DNP Points Lists" L60 web page to view the points lists. This page can be viewed with a web browser by enter-
ing the L60 IP address to access the L60 "Main Menu", then by selecting the "Device Information Menu" > "DNP
NOTE
Points Lists" menu item.
The
DNP OBJECT 1 DEFAULT VARIATION
default variation number for object types 1, 2, 20, 21, 22, 23, 30, and 32. The default variation refers to the variation
response when variation 0 is requested and/or in class 0, 1, 2, or 3 scans. Refer to the DNP implementation section in
appendix E for additional details.
The DNP binary outputs typically map one-to-one to IED data points. That is, each DNP binary output controls a single
physical or virtual control point in an IED. In the L60 relay, DNP binary outputs are mapped to virtual inputs. However, some
legacy DNP implementations use a mapping of one DNP binary output to two physical or virtual control points to support
the concept of trip/close (for circuit breakers) or raise/lower (for tap changers) using a single control point. That is, the DNP
master can operate a single point for both trip and close, or raise and lower, operations. The L60 can be configured to sup-
port paired control points, with each paired control point operating two virtual inputs. The
setting allows configuration of from 0 to 32 binary output paired controls. Points not configured as paired operate on
POINTS
a one-to-one basis.
The
DNP TCP CONNECTION TIMEOUT
there is no data traffic on a DNP TCP connection for greater than the time specified by this setting, the connection will be
aborted by the L60. This frees up the connection to be re-used by a client.
Relay power must be re-cycled after changing the
effect.
NOTE
5-20
should be "Disabled" for RS485 applications since there is no collision avoidance
sets the time the L60 waits for a DNP master to confirm an unsolicited
setting determines the number of times the L60 retransmits an unsolic-
is the DNP address to which all unsolicited responses are sent. The IP address to which unsolic-
settings determine when to trigger unsolicited responses containing analog input data. These
settings are not applicable.
setting determines how often the Need Time Internal Indication (IIN) bit is set by the L60.
setting determines the size, in bytes, at which message fragmentation occurs. Large
to
DNP OBJECT 32 DEFAULT VARIATION
setting specifies a time delay for the detection of dead network TCP connections. If
L60 Line Phase Comparison System
DNP VOLTAGE SCALE FACTOR
DNP CURRENT DEFAULT DEADBAND
DNP ENERGY SCALE FACTOR
settings allow the user to select the DNP
DNP TCP CONNECTION TIMEOUT
5 SETTINGS
DNP UNSOL
setting is set to "1000",
setting should
and
DNP ENERGY
DNP NUMBER OF PAIRED CONTROL
setting for the changes to take
GE Multilin

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