Chapter 8 MODBUS Communications|ASDA-A&A+ Series
Revision April 2009 8-5
8.2 Communication Parameter Settings
The following describes the communication addresses for the communication parameters.
For communication parameters, please refer to the Chapter 7. Communication Addresses 0301, 0302, and
0305 have to be set identically for all the drives and devices to communicate correctly.
0300H
Communication
Address Setting
Default: 1
Range: 1~254
If the AC servo drive is controlled by RS-232/485/422 communication, each drive (or device) must be
uniquely identified and addressed between 1 and 254. Access to program this number is via parameter
P3-00.
0301H
Transmission
Speed
Default: 1
Range: 0~5
Settings:
0: Baud rate 4800 (data transmission speed: bits / second)
1: Baud rate 9600 (data transmission speed: bits / second)
2: Baud rate 19200 (data transmission speed: bits / second)
3: Baud rate 38400 (data transmission speed: bits / second)
4: Baud rate 57600 (data transmission speed: bits / second)
5: Baud rate 115200 (data transmission speed: bits / second)
This parameter is used to set the desired transmission speed between the computer and AC servo drive.
Users can set this parameter and control transmission speed to reach the maximum baud rate of
115200 bps.
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