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Communication operation and setting
(6) MODBUS registers
The following shows the MODBUS registers for system environment variables (read/write), real time monitor items
(read), parameters (read/write), and fault history data (read/write).
System environment variable
Register
40002
Inverter reset
40003
Parameter clear
40004
All parameter clear
40006
Parameter clear
40007
All parameter clear
40009
Inverter status/control input instruction
40010
Operation mode/inverter setting
40014
Running frequency (RAM value)
40015
Running frequency (EEPROM value)
The communication parameter values are not cleared.
For write, set the data as a control input instruction.
For read, data is read as an inverter operating status.
For write, set data as the operation mode setting.
For read, data is read as the operation mode status.
Inverter status/control input instruction
<
Bit
Control input instruction
0
Stop command (Fixed)
Forward rotation command
1
Reverse rotation command
2
RH (high-speed operation
3
command (Variable))
RM (middle-speed operation
4
command (Variable))
RL (low-speed operation
5
command (Variable))
6
7
Second function selection (Fixed)
8
Terminal 4 input selection (Fixed)
9
10
Output stop (Fixed)
11
12
13
14
15
The signal is the initial setting. Definitions change according to the Pr. 180 to Pr. 182 (input terminal function selection) (refer to page 116).
Each assigned signal is valid or invalid depending on NET. (Refer to page 177.)
The signal is the initial setting. Definitions change according to the Pr. 190, Pr. 192, and Pr. 197 (output terminal function selection) (refer to page122).
.... Specifications differ according to the date assembled. Refer to page 301 to check the SERIAL number.
210
Definition
Definition
RUN (inverter running
During forward rotation (Fixed)
(Fixed)
During reverse rotation (Fixed)
(Fixed)
Up-to-frequency (Fixed)
0
Frequency detection (Fixed)
ABC (fault(Variable))
SO (safety monitor output
0
0
0
0
0
0
Read/write
Write
Write
Write
Write
Write
Read/write
Read/write
Read/write
Write
>
Inverter status
(Variable))
Overload (Fixed)
Writing is available depending on the Pr. 79 and
0
The restrictions depending on the operation
mode changes according to the computer
link specifications.
0
(Variable))
0
0
0
0
0
Fault occurrence
Remarks
Any value can be written
Set H965A as a written value.
Set H99AA as a written value.
Set H5A96 as a written value.
Set HAA99 as a written value.
See below.
See below.
According to the Pr. 37 settings, the frequency
and selectable speed are in 1r/min
increments.
Operation mode/inverter setting
<
Mode
Read Value
EXT
H0000
PU
H0001
EXT
H0002
JOG
PU
H0003
JOG
NET
H0004
PU+EXT
H0005
Pr. 340 setting. Refer to page 176 for details.
>
Written
Value
H0010
H0011
—
—
H0014
—
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