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N100
plus
Inverter RS485 Interface Instruction Manual
1.2.1
Inverter read frame
It requires 1~8 parameters of Inverter.
(1) External controller transmit frame
Communication
number
Command
parameter
Parameter
count
CRC Hi
CRC Lo
Clause
Description
Data size
Specifications
Communication
number
Inverter communication
number
1 byte
1~32
Command
Frame type
1 byte
0x03
Parameter
Parameter
2 byte
1st byte : Group
2nd byte : index (Note1)
Parameter
number
Request parameter
Number
2 byte
1st byte : 0x00
2nd byte : N(0x01~0x08)
CRC Hi
-
1 byte
Higher 8bit of 16 bit CRC
CRC Lo
-
1 byte
Lower 8bit of 16 bit CRC
Table 3 External controller transmit frame
(2) Inverter response frame
Communication
number
Order
Byte
number
Data1
………
Data N
CRC Hi
CRC Lo
Clause
Description
Data size
Specifications
Communication
number
Inverter communication
number
1 byte
1~32
Command
Frame type
1 byte
0x03
Request Byte
Data byte number
1 byte
Request parameter number ⅹ 2
Data 1
Parameter 1
2 byte
Parameter value
Data N
Parameter N
2 byte
Nth parameter value
CRC Hi
-
1 byte
Higher 8bit of 16bit CRC
CRC Lo
-
1 byte
Lower 8bit of 16bit CRC
Table 4 Inverter response frame
※
Frame size = 5byte (Communication C Request Byte + CRC H +
CRC L) + Request parameter number
ⅹ
2byte (Data1 + Data2 +
…
.. +
Data N)
N100_Inverter RS485 Interface Manual(English).doc
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