Rs485 Communication Modbus - Hyundai N700E Instruction Manual

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N700E INSTRUCTION MANUAL
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9. RS485 Communication MODBUS

The communication between inverter and external controller can be done through RS-485 by use of the
modular connector(RJ-45) or R+ and R- terminal(option) located in inverter control board.
Function
Minimum
code
b17
b31
A01
A02
Item
Interface
Communication method
Communication speed
Communication code
Data bits
Parity
Stop bit
Starting method
Wait time
Connection type
Error check
RS485
DOP
24V
Initial
Maximum
Value
1
32
1
1
4
3
0
3
0
0
2
0
Description
RS485
Half duplex
Binary code
External request
10∼1000ms
1 : N (Max32)
Frame / CRC / CMD /
MAXREQ / parameter
RXP
Transmit/Receive
+side
Unit
-
Setting the communication number
-
9600bps
-
3 : Communication
-
2 : Digital operator
9600
8
No.
1
Inverter is only slave part.
Communication number is
RXN
Transmit/Receive
-side
Pin No.
1
2
3
4
5
6
7
8
9-1
Description
Remark
Fixing
Fixing
Fixing
Fixing
selected at b17
CM1
24V GND
Signal Descriptions
RS - 485+
RS – 485-
24V
24V GND

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