Launch Circuit

Users can run standalone Nexxim circuit simulations from within the EMC Plus GUI.

This topic contains the following sections:

Creating a Circuit

Click Launch Nexxim within the Nexxim section under the MHARNESS tab in the Ribbon.
A new window will appear with the circuit termination builder.
Use the tools to build the circuit termination. Double click circuit elements to add them to the model window. Be sure to use the connector tool to connect different elements - elements that are directly touching are NOT connected unless a wire connector is placed between them. Users may need to zoom out or use the zoom all button to view all available cable pins. Click the Escape key to exit a tool.
Click OK to complete the setup.
Users can save the circuit schematic as an .xml file to be loaded in later by selecting File > Save from the circuit termination GUI ribbon. To load this schematic in, select File > Open.

Buttons

Button	Meaning
	Delete the selected component (alternatively, if component is selected press the delete key)
	Zoom to fit all components
	Rotate the selected component 90 degrees clockwise (alternatively, if component is selected press the R key)
	Rotate the selected component 90 degrees counter-clockwise
	Tool to connect ports/pins/elements together (all components MUST be connected using this tool)
	Add a ground to the circuit
	Add a voltage probe to the circuit
	Add a current probe to the circuit
	Add a pin to the circuit (only use if running a standalone simulation, otherwise add pins using the methodology from Section 1)
	Adjust the stop time and time step of a standalone simulation (running an integrated MHARNESS/EMA3D simulation overrides these time properties)
	Adjust various tolerances and other Nexxim settings
	Save the netlist .nci input file to run a standalone simulation later
	Run a standalone simulation from the netlist .nci input file

Running a Standalone Circuit Termination Simulation

Follow the steps in the previous section to create the circuit.
In integrated simulations, the time settings are imported from MHARNESS/EMA3D. In standalone simulations, users must input the stop time and time step (the start time is 0s by default). Click Time in the circuit termination GUI to set the stop time and step time.
Next, users must save the .nci input file containing all of the necessary properties for the simulation. Click Save in the circuit termination window.
Click Play in the circuit termination window. Select the previously-exported .nci input file from the pop-up window.
A progress bar will appear.
Once complete, the simulation output can be found in the .csv file in the same directory where the .nci input file was saved. Users can plot the fields using any external plotting software.

Importing Subcircuits

It is possible to import subcircuit elements to use in a custom circuit termination.

Before beginning, the .txt file containing the subcircuit information should follow a similar format to the following:
Select the Import button from the circuit termination GUI ribbon. Then select Import Subcircuits.
In the pop-up window, select the .txt file containing the subcircuit information. Click Open.
The imported subcircuit can be found in the dropdown menu on the left-hand side of the circuit termination GUI.
Select the subcircuit from the drop-down menu. A graphic of the subcircuit will appear with labels (obtained from the .txt file) at each port.
Double click the graphic of the subcircuit to add it to the circuit termination.

[ema3d.gui.mharness.nexxim]