Hiwin D2

D2 Drive User Guide v1.8 D. Modbus Communication
HIWIN Mikrosystem Corp. 280
D.1. Modbus communication specification
The Modbus communication specification for D2-series drives is shown in the following table.
Table D-1
Interface
RS-485 2W-cabling
Communication
cycle
Asynchronous (half duplex)
Communication
parameters
Baud rate
2,400, 4,800, 9,600 (default), 14,400, 19,200, 38,400 bps
Protocol
RTU (default), ASCII
Data length
(note 1)
8 bits (default), 7 bits
Parity
Even (default), odd, none
Start bit
1 bit
Start bit
(note 2)
1 bit (default), 2 bits
Slave address
1 - 247
Note 1. The data length in the RTU communication protocol is 8 bits; while that in the ASCII
communication protocol is 7 bits.
Note 2. The stop bit for the odd parity and even parity is 1 bits; while that for the none parity is 2 bits.