Return Bus Exception Error Count (Sub-Command Code: 0X0D) - Mitsubishi FX3U Series User Manual
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FX
Series Programmable Controllers
3U
User's Manual - MODBUS Serial Communication Edition
7.11.9 Return bus exception error count (sub-command code: 0x0D)
Reads out the number of exception errors to the master.
1) Request message format (Master → Slave)
Function code
2) Response message format (Slave → Master)
(When completed normally)
Function code
*1. Refer to Chapter 6 for the relevant counts, count clear methods and precautions.
(When completed with an error)
*2. 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.
Sub-function code
Function
Sub-function code
code
(000D
)
H
(08
)
H
(H)
Sub-function code
Function
Sub-function code
code
(000D
)
H
(08
)
H
(H)
Function code
Function
code
(88
)
H
7.11 Diagnostics (Command Code: 0x08)
Data
(0000
)
H
(L)
(H)
(L)
Data
Exception error count value
(0000
to FFFF
H
H
(L)
(L)
(H)
Data
Exception
code *
2
7 MODBUS Standard Commands
1
) *
1
2
3
4
5
6
7
8
9
10
65
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