Coolmay C600S - Chapter 8 RS-485 Communication Function; Communication Parameters

Chapter 8 RS-485 communication function
95
Chapter 8 RS-485 communication function
8.1 Communication parameters
With RS-485 serial communication function, using Modbus RTU protocol can realize many
functions such as servo system parameter change and servo system status monitoring.
Parameter
Name
Range
Default value
FA-71
Drive ID number (station number)
1~254
1
When using RS-485 communication, the station number of the servo driver needs to be set to
different values by this parameter. The setting range of the station number address is 1~254, and
the default value is 1. This station number represents the absolute address of the driver in the
communication network. Repeated setting of the station number will lead to failure of normal
communication.
Parameter
Name
Range
Default value
FA-72
Modbus communication baud rate
48~1152x100
96
Select the baud rate of RS-485 communication through this parameter, and the selected
communication baud rate must be consistent with the communication baud rate of the upper
controller.
Parameter Meaning:
Select 96 × 100, the baud rate is 9600
In addition, the communication protocol of RS-485 should be consistent with that of the upper
controller. The specific setting values are as follows:
8, N, 2（MODBUS, RTU）
The number 8 represents that the transmitted data is 8 bits; The letter N indicates that parity
bits are not used; The number 2 indicates that the end bit is 2.
Parameter
Name
Range
Default value
FA-73
Modbus communication protocol selection
0~2
0
Select the communication protocol of RS-485 through this parameter. The selected
communication protocol must be consistent with the communication protocol of the upper
controller. The specific setting values are as follows:
0: 8, N, 2（MODBUS，RTU）
1: 8, E, 1（MODBUS，RTU）
2: 8, O, 1（MODBUS，RTU）