Mitsubishi QJ71MB91, User Manual

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