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4
MODBUS STANDARD FUNCTIONS
4.11.4 Change ASCII input delimiter (sub-function code: 03)
Changes the 2nd byte (LF(0A
The specified data is stored in the 2nd byte of end code in the buffer memory. (address:
0F0C
H
Start
Address field
:
2 characters
(3A
)
H
(1) Request message format (Master
(2) Response message format (Slave
(When completed normally)
The slave returns the request message received from the master without change.
(When completed with an error)
Figure 4.37 Change ASCII input delimiter (Exception message)
POINT
)) of the end code in the ASCII mode to a specified data.
H
/0F4C
)
H
Function code
2 characters
Figure 4.35 Change part in the end code
Function code
Sub-function code
Function
Sub-function code
code
(0003
H
(08
H)
(H)
Figure 4.36 Change ASCII input delimiter (Request message)
Function code
Data
Function
Exception
code
code*
1
(88
)
H
* 1 Exception and error codes are stored in the buffer memory in the case of error completion.
Refer to the following for storage location, confirmation methods, and detailed contents.
Section 11.4
This function is used only for 1:1 connections.
Do not use this function for 1:n connections.
4.11.4 Change ASCII input delimiter (sub-function code: 03)
Data
n x 2 characters
(n = 0 to 252)
Change this into a specified data.
Slave)
Data
Input delimiter
setting
)
(00
to FF
)
H
H
(L)
Master)
4.11 Diagnostics (FC: 08)
Error check
END
CR +
LF
2 characters
(0D
) (0A
)
H
H
(00
)
H
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