Mitsubishi Electric 800 Series Instruction Manual page 580

MODBUS register
• The following shows the MODBUS registers for system environment variables (read/write), real time monitor items (read),
parameters (read/write), fault history data (read/write), and model information monitor items (read).
• System environmental variables
Register Definition
40002 Inverter reset
40003 Parameter clear
40004 All parameter clear
40006 Parameter clear
40007 All parameter clear
40009 Inverter status/control input command
40010 Operation mode/inverter setting
40014 Set frequency (RAM value)
40015 Set frequency (EEPROM value)

Communication parameter settings are not cleared.

At a write, the data is set as the control input command.
At a read, the data is read as the inverter running status.

At a write, the data is set as the operation mode setting.
At a read, the data is read as the operation mode setting.
<Inverter status/control input command>
Bit
Control input command
0 Stop command
1 Forward rotation command
2 Reverse rotation command
3 RH (High-speed operation command)
4 RM (Middle-speed operation command)
5 RL (Low-speed operation command)
6 JOG (Jog operation selection)
7 RT (Second function selection)
8 AU (Terminal 4 input selection)
CS (Selection of automatic restart after
9
instantaneous power failure, flying start)
10 MRS (Output stop)

11 STP (STOP) (Start self-holding selection)
12 RES (Inverter reset)

13 0
14 0
15 0

The signal within parentheses ( ) is the initial status. The description changes depending on the setting of Pr.180 to Pr.189 (Input terminal
function selection)
For each of the assigned signals, some signals are enabled by NET and some are disabled. (Refer to

The inverter run enable signal is in the initial status for the separated converter type.

The signal within parentheses ( ) is the initial status. The description changes depending on the setting of Pr.190 to Pr.196 (Output terminal
function selection)

No function is assigned in the initial status for the separated converter type.
<Operation mode/inverter setting>
Mode Read value
EXT H0000
PU H0001
EXT
H0002
JOG
PU
H0003
JOG
NET H0004
PU+EXT H0005

Enable/disable parameter writing by Pr.79 and Pr.340 settings. For the details, refer to
Restrictions in each operation mode conform with the computer link specification.
Read/Write
Write
Write
Write
Write

Write

Read/Write

Read/Write

Read/Write
Write
Definition
RUN (Inverter running)
During forward rotation
During reverse rotation
SU (Up to frequency)

OL (Overload warning)

IPF (Instantaneous power failure/

undervoltage)
FU (Output frequency detection)

ABC1 (Fault)

ABC2 (-)
 
0

0
0

0
0
0
Fault occurrence
(page 415).
(page 370).
Write value
H0010

H0011

―
―
H0014
―
(N) Operation via communication and its settings
Any value can be written
Set H965A for the write value.
Set H99AA for the write value.
Set H5A96 for the write value.
Set HAA99 for the write value.
Refer to the following.
Refer to the following.
The display can be changed to the rotations
per minute using Pr.37, Pr.144 and Pr.811.
(Refer to page 345)
Inverter status






page 300.
Remarks
page 305.)
PARAMETERS
5
GROUP
N
579