GE M60 UR Series

GE Multilin M60 Motor Protection System 5-37
5 SETTINGS 5.2 PRODUCT SETUP
5
The M60 supports the Distributed Network Protocol (DNP) version 3.0. The M60 can be used as a DNP slave device con-
nected to multiple DNP masters (usually an RTU or a SCADA master station). Since the M60 maintains two sets of DNP
data change buffers and connection information, two DNP masters can actively communicate with the M60 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, DNP is the only protocol running on that port; Modbus or IEC
60870-5-103 are disabled. If DNP is assigned to RS485, the protocol must be set to DNP on the serial port configuration as
well, for the change to take effect. 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. See the DNP appendix for information on the DNP protocol.
Changes to these settings take effect when power has been cycled to the relay.
The
DNP NETWORK CLIENT ADDRESS settings can force the M60 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, 3
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 7200 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