Communication Specifications - Omron 3G3MX2 User Manual

6-1 Communication Specifications

6-1 Communication Specifications

The 3G3MX2 Series Inverter comes standard with a RS-485 Modbus communication
(Modbus-RTU) port to enable communication with external network control equipment. The
communication specifications are specified below. The Modbus communications function of
the Inverter cannot be used if an optional board that provides communications functions is
mounted.
Function name
Protocol
Transfer Speed
Synchronous System
Transfer Code
Transmission Mode
Complying Interface
Data Bit Length
Parity
Stop Bit Length
Startup Method
6
Wait Time
Connection
Error Check
Communication length
6-1
Description
Modbus communication (Modbus-RTU) (Slave)
2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 76.8 k,
115.2 kbps
Asynchronous system
Binary
LSB first (Sent sequentially from the least significant
bit.)
RS-485
8 bits
No parity/Even/Odd
1 bit or 2 bits
One-side start using host command
Silent interval + 0 to 1,000 [ms]
1: N (N = Max. 247)
(Up to 32 units can be connected without repeater.)
Overrun/Framing/CRC-16/Horizontal parity
500 m
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
Note
Selected/set by a
parameter.
Selected/set by a
parameter.
Selected/set by a
parameter.
−
Selected/set by a
parameter.
Selected/set by a
parameter.