GE N60 Instruction Manual page 149

5 SETTINGS
MESSAGE
MESSAGE
The N60 supports the Distributed Network Protocol (DNP) version 3.0. The N60 can be used as a DNP slave device con-
nected to multiple DNP masters (usually an RTU or a SCADA master station). Since the N60 maintains two sets of DNP
data change buffers and connection information, two DNP masters can actively communicate with the N60 at one time.
The IEC 60870-5-104 and DNP protocols cannot be simultaneously. When the
ting is set to "Enabled", the DNP protocol will not be operational. When this setting is changed it will not
NOTE
become active until power to the relay has been cycled (off-to-on).
The DNP Channels sub-menu is shown below.

PATH: SETTINGS PRODUCT SETUP
 DNP CHANNELS

MESSAGE
The and
DNP CHANNEL 1 PORT
for each channel. Once DNP is assigned to a serial port, the Modbus protocol is disabled on that port. Note that COM1 can
be used only in non-Ethernet UR relays. 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 chan-
nel 1 only. Refer to Appendix E for additional information on the DNP protocol.
Changes to the
DNP CHANNEL 1 PORT
the relay.
NOTE
Do not set more than one protocol to the same TCP/UDP port number, as this results in unreliable operation of
those protocols.
The setting is the DNP slave address. This number identifies the N60 on a DNP communications link. Each
DNP ADDRESS
DNP slave should be assigned a unique address.
The
DNP NETWORK CLIENT ADDRESS
settings in this sub-menu are shown below.

PATH: SETTINGS PRODUCT SETUP
 DNP NETWORK
 CLIENT ADDRESSES
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The setting is the DNP slave address. This number identifies the N60 on a DNP communications link. Each
DNP ADDRESS
DNP slave should be assigned a unique address.
The
DNP UNSOL RESPONSE FUNCTION
mechanism. The
DNP UNSOL RESPONSE TIMEOUT
response. The
DNP UNSOL RESPONSE MAX RETRIES
GE Multilin N60 Network Stability and Synchrophasor Measurement System
DNP NUMBER OF PAIRED
CONTROL POINTS: 0
DNP TCP CONNECTION
TIMEOUT: 120 s
 
COMMUNICATIONS
DNP CHANNEL 1 PORT:
NETWORK
DNP CHANNEL 2 PORT:
COM2 - RS485
settings select the communications port assigned to the DNP protocol
DNP CHANNEL 2 PORT
and
DNP CHANNEL 2 PORT
settings can force the N60 to respond to a maximum of five specific DNP masters. The
 
COMMUNICATIONS
CLIENT ADDRESS 1:
0.0.0.0
CLIENT ADDRESS 2:
0.0.0.0
CLIENT ADDRESS 3:
0.0.0.0
CLIENT ADDRESS 4:
0.0.0.0
CLIENT ADDRESS 5:
0.0.0.0
should be "Disabled" for RS485 applications since there is no collision avoidance
sets the time the N60 waits for a DNP master to confirm an unsolicited
setting determines the number of times the N60 retransmits an unsolic-
Range: 0 to 32 in steps of 1
Range: 10 to 300 s in steps of 1

DNP PROTOCOL DNP CHANNELS
Range: NONE, COM1 - RS485, COM2 - RS485,
FRONT PANEL - RS232, NETWORK - TCP,
NETWORK - UDP
Range: NONE, COM1 - RS485, COM2 - RS485,
FRONT PANEL - RS232, NETWORK - TCP,
NETWORK - UDP
settings take effect after power has been cycled to

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
5.2 PRODUCT SETUP
set-
IEC 60870-5-104 FUNCTION
5-19
5