Function Code List - Mitsubishi Electric 800 Series Instruction Manual

4.5.5

Function code list

Read/
Function name
write
Read Holding
Read
Register
Preset Single
Write
Register
Diagnostics Read
Preset Multiple
Write
Registers
66
PARAMETER
Code
The data of the holding registers is read.
The various data of the inverter can be read from MODBUS
registers.
System environmental variable (Refer to
H03 Real time monitor (Refer to the Instruction Manual (Detailed) of
the inverter.)
Faults history (Refer to
Model information monitor (Refer to
Inverter parameters (Refer to
Data is written to holding registers.
Data can be written to MODBUS registers to output instructions
H06 to the inverter or set parameters.
System environmental variable (Refer to
Inverter parameters (Refer to
Functions are diagnosed. (communication check only)
A communication check can be made since the query message
H08 is sent and the query message is returned as it is as the return
message (subfunction code H00 function).
Subfunction code H00 (Return Query Data)
Data is written to consecutive multiple holding registers.
Data can be written to consecutive multiple MODBUS registers
H10 to output instructions to the inverter or set parameters.
System environmental variable (Refer to
Inverter parameters (Refer to
Outline
page 78.)
page 83.)
page 84.)
page 80.)
page 78.)
page 80.)
page 78.)
page 80.)
Message
Broadcast format
communication reference
page
Not available 67
Available 70
Not available 71
Available 72