44
4. RS485 communication protocol
Power source is slave mode
：
1
）
、
Baud rate
：
19200bps
。
2
）
、
Data bit
：
1 start bit
，
8 data bit
，
1 stop bit
，
no check bit
。
3
）
、
Communication connector
：
RS485
，
connector as following
7-5 RS485 DB9 terminal
4
）
、
Function code support
：
03H
（
read several register
）
，
06H
（
edit one register
）
，
10H
（
edit several register
）
。
5
）
、
Data mode
：
Modbus standard frame
Master station transmit frame
：
Function
code
and
instruction
Deputy
station
address
Functi
on
code
Register
address
Register
quantity
Function
code and
instruction
Deputy station
address
Functi
on
code
Read register(0X03)
1
1
2
2
/
/
2
Edit single register(0X06)
1
1
2
/
/
2
2
Edit several register(0X10) 1
1
2
2
1
Register qty*2
2
Deputy station react frame
：
a)
、
react correct frame
：
Function
code
and
instruction
Deputy
station
address
Functi
on
code
Register
address
Register
quantity
Function
code and
instruction
Deputy
station
address
Function
code
Read register(0X03)
1
1
/
/
1
2
2
Edit single register(0X06)
1
1
/
/
/
2
2
Edit several register(0X10) 1
1
2
2
/
/
2
b)
、
react error frame
：
Function code and instruction
Deputy station address
Function code Register address Register quantity
Read register(0X03)
1
1
1
2
Edit single register(0X06)
1
1
1
2
Edit several register(0X10)
1
1
1
2
Take function code 10H edit the register 42000, date 100 as example for frame consists:
Master station-> cutting power source
：
equipment address= 1
：
01 10 A4 10 00 01 00 64 40 E1
Power source -> master station
（
react
）
01 10 A4 10 00 01 23 3C
6
）
、
Working mode
：
Deputy station
（
react data transmitted from master station
）
Summary of Contents for SLG-200HF
Page 12: ...5 3 2 SLG 300HF dimension and weight 3 3 SLG 400HF dimension and weight...
Page 22: ...15 5 2 Installation Drawing System components A Plasma power sourceSLG 200HF 300HF 400HF...
Page 47: ...40 3 Circuit diagram 7 1 SLG 200HF...
Page 48: ...41 7 2 SLG 300HF...
Page 49: ...42 7 3 SLG 400HF...
Page 50: ...43 7 4 QFK E1...