GE L30 User Manual

GE Multilin L30 Line Current Differential System 5-27
5 SETTINGS 5.2 PRODUCT SETUP
5
5.2.4 COMMUNICATIONS
a) MAIN MENU
PATH: SETTINGS  PRODUCT SETUP  COMMUNICATIONS
b) SERIAL PORTS
PATH: SETTINGS  PRODUCT SETUP  COMMUNICATIONS  SERIAL PORTS
RS485 COM2 BAUD RATE and PARITY: The L30 is equipped with two independent serial communication ports. The faceplate
RS232 port is intended for local use and is fixed at 19200 bit/s baud and even parity. The rear COM2 port is RS485 and has
settings for baud rate and parity. It is important that these parameters agree with the settings used on the computer or other
equipment that is connected to these ports. Any of these ports can be connected to a computer running EnerVista UR
Setup. This software can download and upload setting files, view measured parameters, and upgrade the relay firmware. A
maximum of 32 relays can be daisy-chained and connected to a DCS, PLC, or computer using the RS485 ports. If IEC
60870-103 is chosen as the protocol, valid baud rates are 9600 and 19200 bit/s, and valid parity is Even.
RS485 COM2 RESPONSE MIN TIME: This setting specifies the minimum time before the rear RS485 port transmits after receiv-
ing data from a host. This feature allows operation with hosts that hold the RS485 transmitter active for some time after
each transmission.
 COMMUNICATIONS

 SERIAL PORTS

See page 5–27.
MESSAGE
 NETWORK

See page 5–30.
MESSAGE
 ROUTING

See page 5–32.
MESSAGE
 MODBUS PROTOCOL

See page 5–35.
MESSAGE
PROTOCOL:
DNP 3.0
Range: DNP 3.0, IEC 60870-5-104, IEC 60870-5-103
MESSAGE
 DNP PROTOCOL

See page 5–37.
MESSAGE
 DNP / IEC104
 POINT LISTS
See page 5–40.
MESSAGE
 IEC 61850 PROTOCOL

See page 5–41.
MESSAGE
 WEB SERVER
 HTTP PROTOCOL
See page 5–56.
MESSAGE
 TFTP PROTOCOL

See page 5–56.
MESSAGE
 IEC 60870-5-104
 PROTOCOL
See page 5–57.
MESSAGE
 IEC103
 PROTOCOL
See page 5–58.
 SERIAL PORTS

RS485 COM2 BAUD RATE:
19200
Range: 300, 1200, 2400, 4800, 9600, 14400, 19200,
28800, 33600, 38400, 57600, 115200 bit/s
MESSAGE
RS485 COM2 PARITY:
Even
Range: None, Odd, Even
MESSAGE
RS485 COM2 RESPONSE
MIN TIME: 0 ms
Range: 0 to 1000 ms in steps of 10

GE L30 Specifications

General

Brand	GE
Model	L30
Category	Relays
Language	English