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Incorrect Modbus connection to the card
Master is not polling
Incorrect baud rate setting
Incorrect byte format
Verify that the Low signal is
connected to terminal N and the
High signal is connected to
terminal P
Verify that the master (PLC or
PC) is polling the inverter.
Verify that the baud rate (I/O47) is
set to match the baud rate of the
inverter.
The inverter communicates using
8 data bits, 1 stop bit and no
parity bits. Verify that the master
is set to the same.
modbus-rtu iS5 manual.doc
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