2 communication specifications, 1 communication overview, Communication functions – MITSUBISHI ELECTRIC MELSERVO MR-J2S- A User Manual
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14. COMMUNICATION FUNCTIONS
14.2 Communication specifications
14.2.1 Communication overview
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
9600/19200/38400/57600 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
1 frame (11bits)
Data
0
1
2
3
4
5
6
7
(LSB)
(MSB)
Start
Parity
Stop
Next
start