Mitsubishi QJ71MT91 User Manual

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MELSEC-Q
4 MODBUS
R
STANDARD FUNCTIONS
(2) Response message format (Slave Master)
(When completed normally)
Number of
response
data bytes
(m 2+N 2)
Data
(L)
Function code
Function code
(14
H
)
Device data
1
(H) (H) (L)
Sub-request 1
Number of
read bytes
(n1 2+1)
(Number of read bytes n1 2 + 1)
Reference
number
(06
H
)
Device data
n1
(Number of response data bytes m 2 + N 2)
Data
(L)
Device data
1
(H) (H) (L)
Sub-request m
Number of
read bytes
(nm 2+1)
Reference
number
(06
H
)
Device data
nm
(Number of response data bytes m 2 + N 2)
(Number of read bytes nm 2 + 1)
"N" in the above diagram represents the total (n1 +
+ nm) of the device
data.
(When completed with an error)
Data
Exception code*
Function code
Function code
(94
H
)
: When completed with an error, the exception code and error code are stored
into the buffer memory.
Refer to Section 11.3 for the storage location, confirmation method and more
details.

Mitsubishi QJ71MT91 Specifications

General

Brand	Mitsubishi
Model	QJ71MT91
Category	Controller
Language	English