15. COMMUNICATION FUNCTIONS
15.2 Communication specifications
15.2.1 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
Baud rate
9600/19200/38400/57600 asynchronous system
Start bit
Data bit
Transfer code
Parity bit
Stop bit
Transfer protocol
Character system, half-duplex communication system
Start
Description
: 1 bit
: 8 bits
: 1 bit (even)
: 1 bit
(LSB)
0
1
2
3
1 frame (11bits)
(MSB)
4
5
6
Data
15 - 3
Next
Parity
Stop
start
7