12
Rev. 1.0
11/08/2017
STF-R/C Hardware Manual
 400-820-9661
2.4  Setting bus address and baud rate
STF drives (-R model and -C model) have two rotary switches to set the bus address and baud 
rate.
2.4.1  RS-485 address and baud rate settings(-R model)
Set drive’s RS-485 address by rotary switch S1 
Set drive’s RS-485 baud rate by rotary switch S2
S1 is used to set drive’s RS-485 address, and the range is 0~F (0~15 in 
decimal). If you want to set the drive’s RS-485 address range to 10~1F 
(16~31 in decimal), you need to congure it in STF Congurator software.
Upper/Lower addr S1 position SCL addr Upper/Lower addr S1 position SCL addr
Lower(Axis 0~15)
0 0
Upper(Axis 16~31)
0 @
1 1 1 !
2 2 2 "
3 3 3 #
4 4 4 $
5 5 5 %
6 6 6 &
7 7 7 '
8 8 8 (
9 9 9 )
A : A *
B ; B +
C < C ,
D = D -
E > E .
F ? F /
S2 position Baud Rate (bps)
0 9600
1 19200
2 38400
3 57600
4 115200
5-9 Reserved
S1
S2
RS-485 
Baud Rate
RS-485 
Address