Terminal Block; Communication Operation - Mitsubishi Electric FR-A701 Instrucion Manual

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 paires)
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 chapter 4 of
instruction manual (applied).
OPEN
Terminating resistor switch
Factory-set to "OPEN".
Set only the terminating resistor switch of the
100Ω remotest inverter to the "100Ω" position.
RDA1 RDB1
(RXD1+) (RXD1-)
SDA1 SDB1
TXD
(TXD1+) (TXD1-)
P5S SG
(VCC) (GND)
Programmable controller
Inverter
the
Control circuit specifications
RDA2 RDB2
RXD
(RXD2+) (RXD2-)
SDA2 SDB2
(TXD2+) (TXD2-)
P5S SG
VCC
(VCC) (GND)
Multidrop link
Inverter Inverter
2
(32 inverters maximum
are connectable)
27