Omron MX2 Series User Manual

8 Communications Functions
8 - 24
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
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Scale
8-7 Modbus Mapping Function
This Modbus mapping function can change up to 10 register addresses.
For example, when designing replacement, you can match the inverter-side register addresses without
changing the communications program.
It is also possible to set the data type, scale, and endian (byte order) of communication data according
to your application.
8-7-1 Operation of Modbus Mapping Function
The Modbus mapping function can set up to 10 register addresses.
This function processes the command, which is sent to the external register address specified from the
external communications, for data in the address set in Modbus Mapping Internal Register.
Even if the data are different between the external and internal registers, it is possible to adjust data by
the settings of Modbus Mapping External Register Type and Modbus Mapping Scaling.
Modbus mapping function settings (P200 = 01: Enabled)
External register
P201
Data type
P211
Scale
P221
Internal register
P301
1005 hex
01: Signed
2.000
1001 hex
Command from externa
communications
Inside inverter
(Connection process)
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Data type
conversion
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*1. The internal register (Modbus register inside the inverter) that overlaps with the external register setting is dis-
abled.
To use that internal register, set an external register not to overlap or set a different Modbus mapping function
to access from a different address.
Communications
terminal
l
…
External
register
···
1000 hex
1001 hex
1002 hex
1003 hex
1004 hex
1005 hex
1006 hex
···
Internal
register
···
1000 hex
1001 hex
1002 hex
1003 hex
1004 hex
1005 hex
*1
1006 hex
···
Address
1005 hex
Command
10 hex
(Write to register)
Data
0001 hex

Omron MX2 Series Specifications

General

Cooling Method	Fan cooling
Output Frequency Range	0.1 to 400 Hz
Control Method	V/f control, Sensorless vector control
Protection Functions	Overcurrent, overvoltage, undervoltage, overload, overheating, short circuit
Communication Options	Modbus RTU
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Ambient Operating Temperature	-10°C to +50°C
Enclosure	IP20
Storage Temperature	-20°C to +65°C
Humidity	5 to 95% RH (non-condensing)
Altitude	Up to 1000m
Power Supply Voltage	200-240V AC
Input Voltage	3-phase 200-240V AC