Communications - GE L90 Instruction Manual
Line differential relay
ur series
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Also See for L90:
- Instruction manual (900 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (700 pages)
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5.2 PRODUCT SETUP
a) MAIN MENU
!
PATH: SETTINGS
PRODUCT SETUP
# COMMUNICATIONS
#
5
b) SERIAL PORTS
!
PATH: SETTINGS
PRODUCT SETUP
# SERIAL PORTS
#
The L90 is equipped with up to 3 independent serial communication ports. The faceplate RS232 port is intended for local
use and is fixed at 19200 baud and no parity. The rear COM1 port type is selected when ordering: either an Ethernet or
RS485 port. The rear COM2 port is RS485. The RS485 ports have 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 may 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 con-
nected to a DCS, PLC or PC using the RS485 ports.
For each RS485 port, the minimum time before the port will transmit after receiving data from a host can be
set. This feature allows operation with hosts which hold the RS485 transmitter active for some time after
each transmission.
NOTE
5-12
!"
COMMUNICATIONS
# SERIAL PORTS
#
# NETWORK
MESSAGE
#
# MODBUS PROTOCOL
MESSAGE
#
# DNP PROTOCOL
MESSAGE
#
# IEC 61850 PROTOCOL
MESSAGE
#
# WEB SERVER
MESSAGE
# HTTP PROTOCOL
# TFTP PROTOCOL
MESSAGE
#
# IEC 60870-5-104
MESSAGE
# PROTOCOL
# SNTP PROTOCOL
MESSAGE
#
!"
COMMUNICATIONS
RS485 COM1 BAUD
RATE: 19200
RS485 COM1 PARITY:
MESSAGE
None
RS485 COM1 RESPONSE
MESSAGE
MIN TIME:
RS485 COM2 BAUD
MESSAGE
RATE: 19200
RS485 COM2 PARITY:
MESSAGE
None
RS485 COM2 RESPONSE
MESSAGE
MIN TIME:
L90 Line Differential Relay
See below.
See page 5–13.
See page 5–13.
See page 5–14.
See page 5–16.
See page 5–17.
See page 5–17.
See page 5–17.
See page 5–18.
!
SERIAL PORTS
Range: 300, 1200, 2400, 4800, 9600, 14400, 19200,
28800, 33600, 38400, 57600, 115200. Only
active if CPU 9E is ordered.
Range: None, Odd, Even
Only active if CPU Type 9E is ordered
Range: 0 to 1000 ms in steps of 10
Only active if CPU Type 9E is ordered
0 ms
Range: 300, 1200, 2400, 4800, 9600, 14400, 19200,
28800, 33600, 38400, 57600, 115200
Range: None, Odd, Even
Range: 0 to 1000 ms in steps of 10
0 ms
5 SETTINGS
5.2.4 COMMUNICATIONS
GE Multilin
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