Hardware manual

Chapter2 Connection to a PLC
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18.4 Environment Settings
The following shows the settings of the communication port for performing communications
between the Mitsubishi inverter FREQROL series and MICRO/I.
18.4.1 Environment settings for connecting the device to a Mitsubishi inverter
Items Details
Serial Interface RS-485 (4wire)
Inverter No. 01 - 31
Baud Rate (bps)
4800/9600/19200
Data Bits (bit) 7,8
Stop Bits (bit)
1 / 2
Parity
Use the same
settings as for the
MICRO/I.
Odd / Even / None
Ignore Write Error Enable/Disable (*)
Terminator CR only
Communication check time interval Set to a value other than “0”.
(*)When you check “Ignore Write Error.” MICRO/I don’t display “Host communication Error”
even if the Inverter returns NAK Error response.
MICRO/I set the error code from the inverter to LSD 112