Modbus User Map - GE N60 UR Series Instruction Manual

5 SETTINGS
If SNTP functionality is enabled at the same time as IRIG-B, the IRIG-B signal provides the time value to the N60 clock for
as long as a valid signal is present. If the IRIG-B signal is removed, the time obtained from the SNTP server is used. If
either SNTP or IRIG-B is enabled, the N60 clock value cannot be changed using the front panel keypad.
To use SNTP in unicast mode,
set and is "Enabled", the N60 attempts to obtain time values from the SNTP/NTP server. Since many time
SNTP FUNCTION
values are obtained and averaged, it generally takes three to four minutes until the N60 clock is closely synchronized with
the SNTP/NTP server. It may take up to two minutes for the N60 to signal an SNTP self-test error if the server is offline.
To use SNTP in broadcast mode, set the
N60 then listens to SNTP messages sent to the "all ones" broadcast address for the subnet. The N60 waits up to eighteen
minutes (>1024 seconds) without receiving an SNTP broadcast message before signaling an SNTP self-test error.
The UR-series relays do not support the multicast or anycast SNTP functionality.
l) ETHERNET SWITCH
PATH: SETTINGS PRODUCT SETUP
ETHERNET SWITCH
MESSAGE
MESSAGE
MESSAGE
MESSAGE
These settings appear only if the N60 is ordered with an Ethernet switch module (type 2S or 2T).
The IP address and Modbus TCP port number for the Ethernet switch module are specified in this menu. These settings
are used in advanced network configurations. Please consult the network administrator before making changes to these
settings. The client software (EnerVista UR Setup, for example) is the preferred interface to configure these settings.
The through
PORT 1 EVENTS
recorder.
PATH: SETTINGS PRODUCT SETUP

MODBUS USER MAP

MESSAGE
MESSAGE
The Modbus user map provides read-only access for up to 256 registers. To obtain a memory map value, enter the desired
address in the line (this value must be converted from hex to decimal format). The corresponding value is dis-
ADDRESS
played in the line. A value of "0" in subsequent register
VALUE
lines incremented by "1". An address value of "0" in the initial register means "none" and values of "0" will be dis-
ADDRESS
played for all registers. Different
GE Multilin N60 Network Stability and Synchrophasor Measurement System
must be set to the SNTP/NTP server IP address. Once this address is
SNTP SERVER IP ADDR
SNTP SERVER IP ADDR
COMMUNICATIONS
SWITCH IP ADDRESS:
127.0.0.1
SWITCH MODBUS TCP
PORT NUMBER: 502
PORT 1 EVENTS:
Disabled
PORT 2 EVENTS:
Disabled
↓
PORT 6 EVENTS:
Disabled
settings allow Ethernet switch module events to be logged in the event
PORT 6 EVENTS
MODBUS USER MAP
ADDRESS 1:
VALUE: 0
ADDRESS 2:
VALUE: 0
↓
ADDRESS 256:
VALUE: 0
values can be entered as required in any of the register positions.
ADDRESS
setting to "0.0.0.0" and
SNTP FUNCTION
ETHERNET SWITCH
Range: standard IP address format
Range: 1 to 65535 in steps of 1
Range: Enabled, Disabled
Range: Enabled, Disabled
Range: Enabled, Disabled
Range: 0 to 65535 in steps of 1
0
Range: 0 to 65535 in steps of 1
0
Range: 0 to 65535 in steps of 1
0
lines automatically returns values for the previous
ADDRESS
5.2 PRODUCT SETUP
to "Enabled". The
5.2.5 MODBUS USER MAP
5-31
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