Mitsubishi Electric MELSEC iQ-RJ71C24-R2 - Page 48

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3 MODBUS STANDARD FUNCTION DETAILS
3.14 Read File Record (FC: 14H) (SC: 06H)
Response message format (from slave to master)
■ When completed successfully
N shown below is the total of the device data (n1 + ... + nm).
■ When completed with an error
14H
(L)(H) (H) (L)
(L)(H) (H) (L)
(06H)
(06H)
Number of
response data
bytes
m×2+N×2
Device data 1Number of
read bytes
n1×2+1
Number of read bytes n1×2+1
Reference
number
Device data n1
Number of response data bytes m×2+N×2
Device data 1
Number of
read bytes
nm×2+1
Reference
number
Device data nm
Number of response data bytes m×2+N×2
Number of read bytes nm×2+1
DataFunction code
Sub-request 1
Data
Sub-request m
94H
Data
Exception code
Function code