GE C70 Instruction Manual page 160

5.2 PRODUCT SETUP

PATH: SETTINGS PRODUCT SETUP
 DNP CHANNELS

The
DNP CHANNEL 1 PORT
for each channel. Once DNP is assigned to a serial port, the Modbus protocol is disabled on that port. When this setting is
set to "Network - TCP", the DNP protocol can be used over TCP/IP on channels 1 or 2. When this value is set to "Network -
UDP", the DNP protocol can be used over UDP/IP on channel 1 only. Refer to Appendix E for additional information on the
DNP protocol.
Changes to the DNP CHANNEL 1 PORT and DNP CHANNEL 2 PORT settings take effect only after power has
been cycled to the relay.
NOTE
The
DNP NETWORK CLIENT ADDRESS
settings in this sub-menu are shown below.

PATH: SETTINGS PRODUCT SETUP
 DNP NETWORK
 CLIENT ADDRESSES
5
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 C70 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 C70 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 C70 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 C70 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 C70 when any current values change by 15 A, the
should be set to "15". Note that these settings are the deadband default values. DNP object 34 points 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 C70, the default deadbands will be in effect.
The C70 relay does not support energy metering. As such, the
DEFAULT DEADBAND
NOTE
5-36

COMMUNICATIONS
DNP CHANNEL 1 PORT:
NETWORK
DNP CHANNEL 2 PORT:
MESSAGE
COM2 - RS485
and
DNP CHANNEL 2 PORT
settings can force the C70 to respond to a maximum of five specific DNP masters. The

COMMUNICATIONS
CLIENT ADDRESS 1:
0.0.0.0
CLIENT ADDRESS 2:
MESSAGE
0.0.0.0
CLIENT ADDRESS 3:
MESSAGE
0.0.0.0
CLIENT ADDRESS 4:
MESSAGE
0.0.0.0
CLIENT ADDRESS 5:
MESSAGE
0.0.0.0
should be "Disabled" for RS485 applications since there is no collision avoidance
sets the time the C70 waits for a DNP master to confirm an unsolicited
setting determines the number of times the C70 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.
C70 Capacitor Bank Protection and Control System
 
DNP PROTOCOL DNP CHANNELS
Range: NONE, COM2 - RS485,
FRONT PANEL - RS232, NETWORK - TCP,
NETWORK - UDP
Range: NONE, COM2 - RS485,
FRONT PANEL - RS232, NETWORK - TCP,
NETWORK - UDP
settings select the communications port assigned to the DNP protocol
 
DNP PROTOCOL DNP NETWORK CLIENT ADDRESSES
Range: standard IP address
Range: standard IP address
Range: standard IP address
Range: standard IP address
Range: standard IP address
DNP VOLTAGE SCALE FACTOR
DNP CURRENT DEFAULT DEADBAND
DNP ENERGY SCALE FACTOR
5 SETTINGS
DNP UNSOL
setting is set to "1000",
setting
and
DNP ENERGY
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