GE Digital Energy L30, Инструкция по эксплуатации, Страница: 152 / 644

5-26 L30 Line Current Differential System GE Multilin
5.2 PRODUCT SETUP 5 SETTINGS
5
The L30 supports the Distributed Network Protocol (DNP) version 3.0. The L30 can be used as a DNP slave device con-
nected to multiple DNP masters (usually an RTU or a SCADA master station). Since the L30 maintains two sets of DNP
data change buffers and connection information, two DNP masters can actively communicate with the L30 at one time.
The IEC 60870-5-104 and DNP protocols cannot be used simultaneously. When the IEC 60870-5-104 FUNCTION
setting is set to “Enabled”, the DNP protocol is not operational. When this setting is changed it does not 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

COMMUNICATIONS

DNP PROTOCOL

DNP CHANNELS
The
DNP CHANNEL 1 PORT
and
DNP CHANNEL 2 PORT
settings select the communications port assigned to the DNP protocol
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.
The
DNP NETWORK CLIENT ADDRESS
settings can force the L30 to respond to a maximum of five specific DNP masters. The
settings in this sub-menu are shown below.
MESSAGE
DNP MESSAGE FRAGMENT
SIZE: 240
Range: 30 to 2048 in steps of 1
MESSAGE
DNP OBJECT 1
DEFAULT VARIATION: 2
Range: 1, 2
MESSAGE
DNP OBJECT 2
DEFAULT VARIATION: 2
Range: 1, 2
MESSAGE
DNP OBJECT 20
DEFAULT VARIATION: 1
Range: 1, 2, 5, 6
MESSAGE
DNP OBJECT 21
DEFAULT VARIATION: 1
Range: 1, 2, 9, 10
MESSAGE
DNP OBJECT 22
DEFAULT VARIATION: 1
Range: 1, 2, 5, 6
MESSAGE
DNP OBJECT 23
DEFAULT VARIATION: 2
Range: 1, 2, 5, 6
MESSAGE
DNP OBJECT 30
DEFAULT VARIATION: 1
Range: 1, 2, 3, 4, 5
MESSAGE
DNP OBJECT 32
DEFAULT VARIATION: 1
Range: 1, 2, 3, 4, 5, 7
MESSAGE
DNP NUMBER OF PAIRED
CONTROL POINTS: 0
Range: 0 to 32 in steps of 1
MESSAGE
DNP TCP CONNECTION
TIMEOUT: 120 s
Range: 10 to 300 s in steps of 1

DNP CHANNELS

DNP CHANNEL 1 PORT:
NETWORK
Range: NONE, COM2 - RS485,
FRONT PANEL - RS232, NETWORK - TCP,
NETWORK - UDP
MESSAGE
DNP CHANNEL 2 PORT:
COM2 - RS485
Range: NONE, COM2 - RS485,
FRONT PANEL - RS232, NETWORK - TCP,
NETWORK - UDP
NOTE
NOTE