Specifications

7SR242 Duobias Settings, Configuration & Instruments Guide
©2010 Siemens Protection Devices Limited Chapter 2 Page 19 of 20
2.1.4 Configuring Relay Data Communication
Using the keys on the relay fascia scroll down the settings menu’s into the ‘communications’ menu. All of the
below settings may not be available in all relay types. Reydisp software is compatible with IEC60870-5-103
protocol.
COM1-RS485 Port
COM2-USB Port (Front)
COM3 – Optional Fibre Optic
COM4 – Optional Fibre Optic
Setting name
Range Default Units Notes
Station Address
0 … 65534 0
Address given to relay to
identify that relay from
others which may be using
the same path for
communication as other
relays for example in a fibre
optic hub
DNP3 Unsolicited
Events
ENABLED, DISABLED
DNP3 Destination
Address
0 … 65534 0
COM1-RS485 Protocol
OFF, IEC60870-5-103,
MODBUS-RTU, DNP3
IEC60870-5-
103
COM1 is the rear mounted
RS485 port
COM1-RS485 Baud
Rate
75 110 150 300 600 1200
2400 4800 9600 19200
38400
19200
COM1-RS485 Parity
NONE, ODD, EVEN EVEN
COM2-USB Protocol
OFF, IEC60870-5-103,
MODBUS-RTU, ASCII,
DNP3
IEC60870-5-
103
COM2 is the front USB port.
COM3 Protocol
OFF, IEC60870-5-103,
MODBUS-RTU, DNP3
IEC6-0870-5-
103
COM3 This is an optional
rear mounted Fibre Optic ST
connection
COM3 Baud Rate
75 110 150 300 600 1200
2400 4800 9600 19200
38400 57600 115200
57600
COM3 Parity
NONE, ODD, EVEN EVEN
COM3 Line Idle
LIGHT ON, LIGHT OFF LIGHT OFF
COM3 Data echo
ON, OFF OFF
COM4 Protocol
OFF, IEC60870-5-103,
MODBUS-RTU, DNP3
OFF
COM4 This is an optional
rear mounted Fibre Optic ST
connection
COM4 Baud Rate
75 110 150 300 600 1200
2400 4800 9600 19200
38400
19200
COM4 Parity
NONE, ODD, EVEN EVEN
COM4 Line Idle
LIGHT ON, LIGHT OFF LIGHT OFF
COM4 Data echo
ON, OFF OFF