Omron 3G3RX Series, User Manual

Page: 248 / 442

4-139
4-4 Communication Function
4
Func
tions
4-4 Communication Function
• This function allows the Inverter to communicate with an external controller via the RS485 interface
from the TM2 terminal on the Inverter's control terminal block board.
„
Communication Specifications
Item ASCII method ModBus-RTU method Note
Transmission speed 2400/4800/9600/19200 bps
Select using
the Digital Operator.
Communication
method
Half-duplex communication
Synchronous system Start-stop synchronous system Asynchronous system
Transmission code ASCII code Binary
Transmission mode LSB first
Compatible interface RS-485
Data bit length 7 or 8 bits 8 bits
Select using
the Digital Operator.
Parity No parity/Even/Odd
Select using
the Digital Operator.
Stop bit length 1 or 2 bits
Select using
the Digital Operator.
Starting method One-side start using host command
Wait time 10 to 1000 [ms] 0 to 1000 [ms]
Set using
the Digital Operator.
Connection 1:N (N = 32 max.)
Use the Digital Operator
to select a station No.
Error check
Overrun/Framing
BCC/Vertical/Horizontal parity
Overrun/Framing
CRC-16/Horizontal parity