6-1
6-1 Communication Specifications
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
6
Communication Function
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 Description Note
Protocol Modbus communication (Modbus-RTU) (Slave)
Transfer Speed 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 76.8 k,
115.2 kbps
Selected/set by a
parameter.
Synchronous System Asynchronous system
Transfer Code Binary
Transmission Mode LSB first (Sent sequentially from the least significant
bit.)
Complying Interface RS-485
Data Bit Length 8 bits
Parity No parity/Even/Odd Selected/set by a
parameter.
Stop Bit Length 1 bit or 2 bits Selected/set by a
parameter.
Startup Method One-side start using host command −
Wait Time Silent interval + 0 to 1,000 [ms] Selected/set by a
parameter.
Connection 1: N (N = Max. 247)
(Up to 32 units can be connected without repeater.)
Selected/set by a
parameter.
Error Check Overrun/Framing/CRC-16/Horizontal parity
Communication length 500 m
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