8-5 
 
8-1-2 RS-485 Communication Related Parameters 
 
Cn036 ID Setting 
Initial Value  Unit  Setting Range  Effective  RS-485 Address 
1 --
 
1 ~ 254  Power Re-set  0027H 
Setting Description:  When using the Modbus Communication Interface, each set of Drivers needs to set 
different IDs in this parameter in advance; if the IDs are set repeatedly, it will result 
in communication not being operated normally.   
 
 
Cn037.0 Modbus RS-485 Communication Transmission Rate 
Initial Value  Unit  Setting Range  Effective  RS-485 Address 
1 --
 
0 ~ 5  Power Re-set  0028H 
Setting Description: 
 
Setting  Description  Setting  Description
0 4800 3 38400 
1 9600 4 57600 
2 19200 5 115200 
 
Cn037.2 RS-485 Communication Write Selection 
Initial Value  Unit  Setting Range  Effective  RS-485 Address 
1 --
 
0 ~ 1  Power Re-set  0028H 
Setting Description: 
 
Setting  Description 
0 
RS-485 Communication Write to 
EEPROM 
1 
RS-485 Communication Write to 
SRAM 
●
  The default value of Cn037.2 is 1 (RS-485 communication is written into SRAM), so the parameters 
written through RS-485 will not be saved when the servo is turned off. 
●
  If Cn037.2 is set to 0 (RS-485 communication is written to EEPROM), although the data will be 
saved after the servo is powered off, but due to the limitation of the number of writes to the EEPROM, if 
it is used, there will be frequent changes to the parameters through communication, in this case, the 
service life of the EEPROM inside the servo will be shortened.