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2 parameter setting, Communication functions – MITSUBISHI ELECTRIC MELSERVO MR-J2S- A User Manual

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14. COMMUNICATION FUNCTIONS

14.2.2 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 baudrate

Choose the communication speed. Match this value to the communication speed of the sending end
(master station).

Communication baudrate
0: 9600[bps]
1: 19200[bps]
2: 38400[bps]
3: 57600[bps]

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.

Serial communication standard selection
0: RS-232C used
1: RS-422 used

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.

Serial communication response delay time
0: Invalid
1: Valid, reply sent in 800 s or more

Parameter No. 16

(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 as in the MR-J2-A
servo amplifiers, choose "no station numbers" in parameter No. 53. The communication protocol will
be free of station numbers.

Parameter No. 53

Protocol station number selection
0: With station numbers
1: No station numbers