List Of Modbus Standard Functions - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

List of MODBUS standard functions

This section lists the function codes that can be executed from the MODBUS/TCP master device to the RJ71EN71 and
RnENCPU (network part).
For details, refer to the following.
 MELSEiQ-R MODBUS/TCP Reference Manual
Function code (FC)
01H
02H
03H
04H
05H
06H
0FH
10H
14H
15H
16H
17H
Sub-code (SC) Function name
 Read coil

Read input
 Read holding register

Read input register

Write single coil

Write single register

Write multiple coils

Write multiple register
06H Read extended file register
06H Write extended file register

Mask-write holding register
 Read/write multiple register
1 FUNCTIONS
1.7 Communications Using MODBUS/TCP
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