Write Single Register (Command Code: 0X06) - Mitsubishi FX3U Series User Manual

FX Series Programmable Controllers
3U
User's Manual - MODBUS Serial Communication Edition
7.9

Write Single Register (Command Code: 0x06)

Writes a value to one holding register.
1) Request message format (Master → Slave)
Function code
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 special data registers and special auxiliary relays in the case
of error completion. Refer to Chapter 6 for storage location, confirmation methods, and other detailed
contents.
Function Holding register number
(0000 to FFFF
code
H
(06 )
H
(H) (L)
Function code
Function
code
(86 )
H
7.9 Write Single Register (Command Code: 0x06)
Data
Write data
) (0000 to FFFF )
H H H
(H)
(L)
Data
Exception
code*
1
7 MODBUS Standard Commands
55
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