Mitsubishi QJ71MB91, User Manual

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- 23 4.9 Write Single Register (FC: 06)
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MODBUS(R) STANDARD FUNCTIONS
4.9 Write Single Register (FC: 06)
Writes a value to one holding register.
(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
Figure 4.23 Write single register (Request Message)
Figure 4.24 Write single register (Exception message)
Data
(L) (L)
Function code
Function
code
(06
H
)
Holding register number
(0000
H
to FFFF
H
)
Write data
(0000
H
to FFFF
H
)
(H)
(H)
Data Function code
Function
code
(86
H
)
Exception
code*
1