Mitsubishi Electric 800 Series Instruction Manual page 573

(N) Operation via communication and its settings
Function code list
Read/
Function name
Read Holding Register Read
Preset Single Register Write
Diagnostics Read
Preset Multiple
Read
Registers
Read holding register
Read
access log
572
PARAMETERS
Code
Write
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
Fault 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
H06 instructions 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 is sent and the query message is returned as
H08
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 to output instructions to the inverter or set
H10
parameters.
System environmental variable (Refer to
Inverter parameters (Refer to
The number of registers that were successfully
accessed by the previous communication is read.
Queries by function codes H03 and H10 are supported.
The number and start address of holding registers
H46
successfully accessed by the previous communication
are returned.
"0" is returned for both the number and start address for
queries other than function code H03 and H10.
Outline
page 579.)
page 348.)
page 581.)
page 581.)
page 580.)
page 579.)
page 580.)
page 579.)
page 580.)
Message
Broadcast format
communication reference
page
Not available page 573.
Available page 574.
Not available page 575.
Available page 576.
Not available page 577.