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15. COMMUNICATION FUNCTIONS
15.2.2 Parameter setting
When the RS-422/RS-232C communication function is used to operate the servo, set the communication
specifications of the servo amplifier in the corresponding parameters.
After setting the values of these parameters, they are made valid by switching power off once, then on
again.
(1) Serial communication baud rate
Choose the communication speed. Match this value to the communication speed of the sending end
(master station).
Parameter No. 16
(2) Serial communication selection
Select the RS-422 or RS-232C communication standard. RS-422 and RS-232C cannot be used together.
Parameter No. 16
(3) Serial communication response delay time
Set the time from when the servo amplifier (slave station) receives communication data to when it
sends back data. Set "0" to send back data in less than 800 s or "1" to send back data in 800 s or more.
Parameter No. 16
Serial communication response delay time
0: Invalid
1: Valid, reply sent in 800 s or more
(4) Station number setting
Set the station number of the servo amplifier in parameter No. 15. The setting range is stations 0 to
31.
(5) Protocol station number selection
When communication is made without setting station numbers to servo amplifiers, choose "no station
numbers" in parameter No. 57. The communication protocol will be free of station numbers.
Parameter No. 57
Protocol station number selection
0: With station numbers
1: No station numbers
Communication baud rate
0: 9600[bps]
1: 19200[bps]
2: 38400[bps]
3: 57600[bps]
Serial communication standard selection
0: RS-232C used
1: RS-422 used
15 - 4
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