GE C30 Instruction Manual page 141

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
those protocols.
d) 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 C30 will respond regardless of the
grammed. For the RS485 ports each C30 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. Refer to Appendix B for more information on the Modbus protocol.
Changes to the
MODBUS TCP PORT NUMBER
NOTE
e) DNP PROTOCOL

PATH: SETTINGS PRODUCT SETUP
 DNP PROTOCOL

MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
GE Multilin
TCP/UDP PORT NUMBER
 
COMMUNICATIONS MODBUS PROTOCOL
MODBUS SLAVE
ADDRESS: 254
MODBUS TCP PORT
NUMBER: 502
setting do not take effect until the C30 is restarted.
 
COMMUNICATIONS DNP PROTOCOL
 DNP CHANNELS

DNP ADDRESS:
1
 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
DNP POWER SCALE
FACTOR: 1
DNP ENERGY SCALE
FACTOR: 1
C30 Controller System
5.2 PRODUCT SETUP
, as this will result in unreliable operation of
Range: 1 to 254 in steps of 1
Range: 1 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: 1 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
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
5-13