Write Single Coil (Command Code: 0X05) - Mitsubishi FX3U Series User Manual

FX Series Programmable Controllers
3U
User's Manual - MODBUS Serial Communication Edition
7.8

Write Single Coil (Command Code: 0x05)

Writes a value (ON/OFF) to one coil.
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 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.
54
Function code
Function
Coil number
code
(0000 to FFFF
H
(05 )
H
(H)
Function code
Function
code
(85
7.8 Write Single Coil (Command Code: 0x05)
Data
ON/OFF specification
)
H 0000
H
FF00
H
(L) (H)
Data
Exception
code*
1
)
H
7 MODBUS Standard Commands
: OFF
: ON
(L)