Terminal Block; Communication Operation - Mitsubishi FR-F720-00046-NA Instruction Manual

2.3.6 RS-485 terminal block
⋅ Conforming standard: EIA-485(RS-485)
⋅ Transmission format: Multidrop link
⋅ Communication speed: MAX 38400bps
(76800bps for BACnet MS/TP protocol)
⋅ 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 and BACnet MS/TP protocol, communication can be performed with the RS-485
terminal.
For further details, refer to
page 211
OPEN
100Ω
TXD
.
Control circuit specifications
Terminating resistor switch
Factory-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100Ω" position.
RDA1 RDB1 RDA2 RDB2
RXD
(RXD1+) (RXD1-) (RXD2+) (RXD2-)
SDA1 SDB1 SDA2 SDB2
(TXD1+) (TXD1-) (TXD2+) (TXD2-)
P5S SG P5S SG
VCC
(VCC) (GND) (VCC) (GND)
2
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