Estun pronet series, User Manual

Page: 149 / 193

ProNet Series AC Servo User's Manual
- 147 -
11-bit character form
（
8-bit data
）
Communication protocol structure
：
Data format of communication protocol
：
ASCII Mode
：
STX Start character‘
：
’
＝＞
(3A
H
)
ADR Communication address ＝＞ 1-byte contains two ASCII codes
CMD Reference code
＝＞
1-byte contains two ASCII codes
DATA(n-1) Data content
＝＞
n-word=2n-byte contain 4n ASCII codes
，
n
≦
12
……
DATA(0)
LRC Checking code
＝＞
1-byte contains two ASCII codes
End 1 End code 1
＝＞（
0D
H
） （
CR
）
End 0 End code 0 ＝＞（ 0A
H
） （ LF ）
RTU Mode
：
STX Sleep interval of at least 4 bytes transmission time.
ADR Communication address ＝＞ 1-byte
CMD Reference code ＝＞ 1-byte
DATA(n-1) Data content
＝＞
n-word=2n-byte
，
n
≦
12
……
DATA(0)
CRC
CRC checking code ＝＞ 1-byte
End 1 Sleep interval of at least 4 bytes transmission time.
Communication protocol data format instructions are as follows ：
STX
（
communication start
）
ASCII mode
：
‘: ’character