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Mitsubishi Electric FR-F740-00023 Instruction Manual: Rs-485 Terminal Block; Communication Operation

F700 series.
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Control circuit specifications
2.3.6

RS-485 terminal block

Conforming standard: EIA-485(RS-485)
Transmission format: Multidrop link
Communication speed: MAX 38400bps
Overall length: 500m
Connection cable:Twisted pair cable
(4 pairs)
2.3.7

Communication operation

Using the PU connector or RS-485 terminal, you can perform communication operation from a personal computer etc.
When the PU connector is connected with a personal, FA or other computer by a communication cable, a user program
can run and monitor the inverter or read and write to parameters.
For the Mitsubishi inverter protocol (computer link operation), communication can be performed with the PU connector
and RS-485 terminal.
For the Modbus RTU protocol, communication can be performed with the RS-485 terminal.
For further details, refer to
30
.
page 189
OPEN
Terminating resistor switch
Factory-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100Ω" position.
100Ω
RDA1
RDB1
RDA2
RDB2
(RXD1+)
(RXD1-)
(RXD2+)
(RXD2-)
SDA1
SDB1
SDA2
SDB2
TXD
(TXD1+)
(TXD1-)
(TXD2+)
(TXD2-)
P5S
SG
P5S
SG
(VCC)
(GND)
(VCC)
(GND)
RXD
VCC

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