Omron MX2 Series - Page 474

8 Communications Functions
8 - 30
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
⚫ Executable function codes
This function is enabled only for the function codes listed below.
Other function codes will be processed in big endian.
Function code
03 hex
Read from multiple holding registers
06 hex
Write to a holding register
10 hex
Write to multiple holding registers
17 hex
Read/Write from/to multiple holding registers
Precautions for Correct Use
• The Modbus mapping endian function settings are reflected on not only Modbus communica-
tion, but also USB communications and communications units.
Set and use the USB communications and communications units as follows.
When using CX-Drive: When the CX-Drive is used to read/write parameters, be sure to
set in advance the Modbus Mapping Endian Selection (P400) to
00 (Big endian).
If the Modbus Mapping Endian Selection (P400) is not set to 00
(Big endian), parameter data cannot be processed normally.
When using communi-
cations units:
The internal processing between the inverter and communications
unit cannot be performed normally.
Be sure to set the Modbus Mapping Endian Selection (P400) to 00
(Big endian).
• The Modbus mapping endian function does not work with the fault monitor functions (Regis-
ter No.: 0012 to 004E hex).
To use the fault monitor functions, be sure to set P400 to 00 (Big endian).