Mitsubishi Electric MELSERVO MR-J2 C Series, Инструкция по эксплуатации

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8. COMMUNICATION FUNCTIONS
8.2 Communication specifications
This servo amplifier is designed to send a reply on receipt of an instruction. The device which gives this
instruction (e.g. personal computer) is called a master station and the device which sends a reply in
response to the instruction (servo amplifier) is called a slave station. When fetching data successively, the
master station repeatedly commands the slave station to send data.
Item Description
Baudrate 4800/9600/19200 asynchronous system
Transfer code
Start bit : 1 bit
Data bit
: 8 bits
Parity bit : 1 bit (even)
Stop bit
: 1 bit
Transfer protocol Character system, half-duplex communication system
(LSB) (MSB)
0 1 2
3 4 5 7 6
Start
Parity Stop
Next
start
1 frame (11 bits)
Data
8.2.1 Parameter setting
When the RS-422/RS-232C communication function is used to operate the servo, choose the communica-
tion specifications with parameter No.16.
After setting the values of these parameters, they are made valid by switching power off once, then on
again.
(1) 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: 4800[bps]
Parameter No. 16
(2) Checksum
The checksum added to data can be deleted. When the checksum is not needed for the communication
specifications of the master station, delete the checksum with this parameter.
Checksum
0: Yes (checksum added)
1: No (checksum not added)
Parameter No. 16
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