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9.6 COMMUNICATIONS
9.6COMMUNICATIONS
The communication test checks that the 2 communications ports (the front RS232 and the rear RS485) work properly. To
perform this test is necessary to establish the connection between the PC and the relay (refer to figure 3-10). If the front
port is used, a straight through cable is needed. If the rear RS485 port is used, an RS485/RS232 converter is needed. GE
Multilin offers DAC300, F485 or RS232/485 converters.
The communications parameters that have to be set in the computer should match the relay default communication
settings.
The factory default settings for the MIFII relay are:
COMMUNICATIONS
NAME
Slave Address
Communication Port
Baud Rate
Parity
Control type
Start up mode
Using the EnerVista MII SETUP program, communicate with the relay and in the Status window check that the
communications are not lost at any time. Perform this test on both communications ports.
This test is carried out at the minimum and maximum voltage that the relay allows (± 20% of the rated voltage).
9
9-6
VALUE
UNITS
1
COM1
9.600
Bauds
NONE
No control type
File Mode
MIFII Digital Feeder Relay
9 RELAY COMMISSIONING
RANGE
1 - 255
COM1 – COM*
300 – 19 200
NONE – ODD - EVEN
No control type, Modem
connection, MODBUS/TCP
Communicate with relay –
File mode
GEK-106237P
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