Wecon VD2 SA Series Servo Drives User Manual (Full V1.0)
103
WECON technology Co., Ltd
8.3 Servo communication parameter setting
Figure 8-3 Modbus communication parameter setting process
(1) Set the servo address [P12-1]
When multiple servos are in network communication, each servo can only have a unique address,
otherwise it will cause abnormal communication and fail to communicate.
0: broadcast address
1~247: slave address
(2) Set the serial port baud rate [P12-2]
The communication rate of the servo and the communication rate of the host computer must be
set consistently, otherwise the communication cannot be carried out.
(3) Set the serial port data format [P12-3]
The data bit check methods of servo communication are:
Odd parity:
Even parity;
No parity
The stop bits are: 1 stop bit and 2 stop bits.
The data frame format of the servo and the host computer must be consistent, otherwise the
communication cannot be carried out.
(4) Set that whether the function code changed by Modbus communication is written into
EEPROM in real time [P12-4]
When the host computer modifies the servo function code through communication, it can choose
to store it in EEPROM in real time, which has the function of power-off storage.
