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4. Parameter description
Parameter
Mode
Start
Address
*
1
）
Function
*
2
）
H80
+
Function code
Error code
*
3
）
Check
End
ASCII
H3A
2char
2char
2char
2char
0D 0A
RTU
>=10ms
8bit
8bit
8bit
2byte
>=10ms
Message
Content
*
1
)
Address
Set the address to send information.
*
2
)
Function code
Function code
＋
H80
*
3
)
Error code
Set the code from the follow table.
List of error codes:
Resource
Code
Meaning
Remarks
Inver
response
H01
Illegal function
code
The inverter can not handle the code which is from the query
message the PC Issued.
H03, H06, H08 and H10 are function
code.
H02
Illegal data
address
The inverter can not handle the address which is from the
query message the PC Issued. (Outside the address listed in
the table, retention parameters, parameters are not allowed to
read and write.)
H03
Illegal data
The inverter can not handle the data which is from the query
message the PC Issued. (
Outside writing range of the parameters,
there is a specified mode, and other errors.
)
Note: Read more than one parameters, even reading the retention parameters, not as an error.
The data issued by the PC, the inverter will detect the following errors, but when an error is detected
no response.
Error detection list:
Error item
Error content
Parity error
Parity which inverter received is different from the inverter initial set.
Frame error
The stop bit lengths of the information which the inverter received do not match
the inverter initial set of stop bits.
Overflow error
When the inverter receives data, has not yet been received, the PC in turn write
the incoming data.
Check error
Inverter side of the data calculated according to the received LRC / CRC check
result is inconsistent with the received LRC / CRC checksum.
