Mitsubishi Electric fr-e700 series, Instruction Manual

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Parameter MODBUS®/TCP (FR-E700 SC ENE)
FR-E700 SC EC/ENE 6 - 335
Function code list
Function name
Read/
write
Code Outline
Message
format
Refer to
page
Read holding
register
Read H03
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 page 6-345.)
Real time monitor (Refer to page 6-140.)
Faults history (Refer to page 6-348.)
Inverter parameters (Refer to page 6-347.)
6-336
Preset single
register
Write H06
Data is written to a holding register.
Data can be written to MODBUS® registers to output instructions
to the inverter or set parameters.
System environmental variable (Refer to page 6-345.)
Inverter parameters (Refer to page 6-347.)
6-338
Diagnostics Read H08
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 it is as the return mes-
sage (subfunction code H00 function).
Subfunction code H00 (Return query data)
6-339
Preset multiple
registers
Write H10
Data is written to multiple consecutive holding registers.
Data can be written to consecutive multiple MODBUS® registers to
output instructions to the inverter or set parameters.
System environmental variable (Refer to page 6-345.)
Inverter parameters (Refer to page 6-347.)
6-340
Read holding
register access log
Read H46
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 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.
When the connection is closed, the data in the log is cleared.
6-342
Tab. 6-123: Function codes