N700E INSTRUCTION MANUAL
9-1
9. RS485 Communication
The communication between inverter and external controller can be done through RS-485 by use of the
modular connector(RJ-45) located in inverter control board.
Function
code
Minimum Maximum
Initial
Value
Unit
Description
b17
1
32
1
-
Settingthe communication number
b31
1
4
3
-
9600bps
A01
0
4
0
-
3: Remote Operator(RJ-45)
A02
0
3
0
-
2: Remote Operator(RJ-45)
Item
Description
Remark
Interface
Communication method
Communication speed
Communication code
Data bits
Parity
Stop bit
Starting method
Wait time
Connection type
Error check
RS485
Half duplex
9600
Binary code
8
No.
1
External request
10
∼
1000ms
1 : N (Max32)
Frame / CRC / CMD /
MAXREQ / parameter
Fixing
Fixing
Fixing
Fixing
Inverter is only slave part.
Communication number is
selected at b17
RS485
1st Communication -RJ45
2nd Communication-Terminal
Function
code
Minimum Maximum
Initial
Value
Unit
Description
b17
1
32
1
-
Settingthe communication number
b31
1
4
3
-
9600bps
A01
0
4
0
-
4: Remote Operator(Terminal)
A02
0
3
0
-
3:Remote Operator(Terminal)
RXP
RXN
Transmit/Receive
+side
Transmit/Receive
-side
Pin No.
Signal Descriptions
1
2
3
RS - 485+
4
5
6
RS - 485-
7
24V
8
24V GND
