GE B90 UR Series Instruction Manual page 135

5 SETTINGS
When the NSAP address, any TCP/UDP port number, or any user map setting (when used with DNP) is changed, it
will not become active until power to the relay has been cycled (off-on).
NOTE
Do not set more than one protocol to the same TCP/UDP Port Number, as this results in unreliable operation of
those protocols.
NOTE
e) MODBUS PROTOCOL

PATH: SETTINGS PRODUCT SETUP
 MODBUS PROTOCOL

MESSAGE
The serial communication ports utilize the Modbus protocol, unless configured for DNP or IEC 60870-5-104 operation (see
descriptions below). This allows the EnerVista UR Setup software to be used. The UR operates as a Modbus slave device
only. When using Modbus protocol on the RS232 port, the B90 responds regardless of the
grammed. For the RS485 port, each B90 must have a unique address from 1 to 254. Address 0 is the broadcast address
which all Modbus slave devices listen to. Addresses do not have to be sequential, but no two devices can have the same
address or conflicts resulting in errors will occur. Generally, each device added to the link should use the next higher
address starting at 1. See Appendix B for more information on the Modbus protocol.
A value of 0 closes the port. When the Modbus port is set to 0, communicate with the relay using the front panel or serial
port.
When a 0 value is involved in a change, the changes to the MODBUS TCP PORT NUMBER setting take effect
when the B90 is restarted.
NOTE
f) DNP PROTOCOL

PATH: SETTINGS PRODUCT SETUP
 DNP PROTOCOL

MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
GE Multilin
 
COMMUNICATIONS MODBUS PROTOCOL
MODBUS SLAVE
ADDRESS: 254
MODBUS TCP PORT
NUMBER: 502
 
COMMUNICATIONS DNP PROTOCOL
 DNP CHANNELS

DNP ADDRESS:
65519
 DNP NETWORK
 CLIENT ADDRESSES
DNP TCP/UDP PORT
NUMBER: 20000
DNP UNSOL RESPONSE
FUNCTION: Disabled
DNP UNSOL RESPONSE
TIMEOUT: 5 s
DNP UNSOL RESPONSE
MAX RETRIES: 10
DNP UNSOL RESPONSE
DEST ADDRESS: 1
DNP CURRENT SCALE
FACTOR: 1
DNP VOLTAGE SCALE
FACTOR: 1
B90 Low Impedance Bus Differential System
5.2 PRODUCT SETUP
Range: 0 to 254 in steps of 1
Range: 0 to 65535 in steps of 1
MODBUS SLAVE ADDRESS
Range: see sub-menu below
Range: 0 to 65519 in steps of 1
Range: see sub-menu below
Range: 0 to 65535 in steps of 1
Range: Enabled, Disabled
Range: 0 to 60 s in steps of 1
Range: 1 to 255 in steps of 1
Range: 0 to 65519 in steps of 1
Range: 0.001, 0.01. 0.1, 1, 10, 100, 1000, 10000,
100000
Range: 0.001, 0.01. 0.1, 1, 10, 100, 1000, 10000,
100000
pro-
5
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