Communication parameter group 07
PARAMETER DESCRIPTION 122
Normal response
Mode
Start
Address*1)
Function*2)
Start Address*3) Number of register *4) Check Stop
ASCII
H3A
2char
2char
4char
4char
2char
0D 0A
RTU
>=10ms
8bit
8bit
2byte
2byte
2byte
>=10ms
Message
Content
*1)Address
Set the address for sending information
*2)Function code
H10
*3)Start address
Set as the start address for the register that needs to be written
*4) Number of registers
Sets the number of registers written. The maximum number is 20.
*5) Number of data
Setting range is 2~24. Set 2 times the value specified in *4).
*6) Write data
Set data division specified in *4). Write data is set in the order of high byte to low byte. Setting is
performed in the order of starting address data, starting a1 data, starting a2 data ...
4. Function diagnosis (H08)
In order to send the query information, the query information (function of subfunction code H00) is returned as it is, and
communication check can be performed.
Sub-function code H00 (return of query data)
The query information
Mode
Start
Address*1) Function*2) Subroutine *3)
Data *4)
Check
End
ASCII
H3A
2char
2char
4char
4char
2char
0D 0A
RTU
>=10ms
1byte
1byte
2byte
2byte
2byte
>=10ms
Normal response
Mode
Start
Address*1) Function*2) Sub-function *3)
Data *4)
Check
End
ASCII
H3A
2char
2char
4char
4char
2char
0D 0A
RTU
>=10ms
1byte
1byte
2byte
2byte
2byte
>=10ms
Query information setting
Message
Content
*1)Address
Set the address for sending information, but be unable to broadcast communication (0 is invalid)
*2)Function code
H08
*3)Sub-function code
H0000
*4)Data
The data can be set arbitrarily if the length is 2 byte. Set range is H0000~HFFFF.
Error response
If error is contained in the function/address/data received from the device, do function diagnosis;
However, when using function code H03 or H10 to access more than one address, if one or more data can still operated, it will
not be seen as an error.
Mode
Start
Address*1)
Function*2)
H80+function
Error code * 3)
Check
End
ASCII
H3A
2char
2char
2char
2char
0D 0A
RTU
>=10ms
8bit
8bit
8bit
2byte
>=10ms
Содержание SL3 Series
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