3G3M1-EMP EtherNet/IP to NX Example
Written by Nicolas Donoso
Updated at March 28th, 2026
In this example we go through an example setup of 3G3M1-EMP Inverter with NX1P2 PLC using EtherNet/IP communication protocol
IP Address Configuration
For this example the static IP Address setup was 192.168.0.10/255.255.255.0.
To assign the IP address in static mode, connect via USB using Sysmac Studio and enter the desired IP address in the parameters within the o2xx list when parameter o213=0.
You can also chose to set the IP Address by using the Rotary Dials instead, if so you need to set parameter o213 = 1.
Set parameter o214 = 2 to select the protocol to be EtherNet/IP and set o299 = 1 to apply the settings. After this power cycle the Inverter.
EtherNet/IP - Input-Output Communication Assemblies
This can be referenced from the manual “ Multiprotocol Ethernet® Communication Type 3G3M1-EMP Ethernet Functions.”
In this example, the 8 BYTE Assemblies, 117 Output (Writing from the PLC to the Drive), and 167 Input (Reading from the PLC to the Drive) will be used.
M1-EMP Parameter Configuration in Sysmac Studio
USB Connection to M1-EMP
USB port with a female MICRO USB connector, which allows connection to a PC USB port.
Open a project in Sysmac Studio
You must use either Sysmac Studio Drive Edition or Sysmac Studio Standard Version. Software version must be 1.64 or above.
Select device type: Drive and model 3G3M1.
Verify Serial Device (COM__)
Verify in Windows Device Manager on which USB Serial Device (COM__) port the cable connected to the M1-EMP is located.
Configure the device’s USB connection
Right-clicking the device and selecting Configuration Settings.
Set the COM port
Go online with Inverter
Setup and tuning
Section where essential parameterization for the application type can be performed easily, to do this, right-click on the device and select Setup and Tuning.
Ethernet Reference
Configure the drive to receive frequency setpoints and the Run command via Ethernet communication.
Transfer parameters to Inverter
Configure the remaining parameters required for the application and transfer the changes to the device.
Perform a power ON/OFF cycle of the device to apply all changes.
NX1P2 Configuration
Create Structure DataType - Output Data
Create Structure DataType - Input Data
Create published variables
Synchronize with NX1P2
Before setting up the EtherNet/IP Data Tag Link setting, transfer the program to the PLC first.
EtherNet/IP Connection Settings
Right-click on the port and select “Edit”
Add EDS Files
Right-click in the Target Device area of the workspace and select “Display EDS Library”
Install the EDS files for the 3G3M1-EMP Inverters
Add Target Device
Register Publish Variables
Select “Register All” to register the variables created in previous step.
Link variables with Target Device
In the central window under the Connection menu, add the target device or drag the one displayed in the tool window.
Transfer EtherNet/IP setting to PLC
Test communications
Once transferred and with the CPU in RUN, open a watch window to write and monitor the program variables.
