Altium NEXUS Documentation


Created: June 9, 2022 | Updated: June 9, 2022
This documentation page references Altium NEXUS/NEXUS Client (part of the deployed NEXUS solution), which has been discontinued. All your PCB design, data management and collaboration needs can now be delivered by Altium Designer (with Altium Designer Enterprise Subscription) and a connected Altium 365 Workspace. Check out the FAQs page for more information.

Parent page: Schematic Commands

The following pre-packaged resource, derived from this base command, is available:

Applied Parameters: None


This command is used to place a Harness Entry object onto the active document. A Harness Entry is an electrical design primitive that is placed within a Harness Connector. A Harness Entry is the connection point through which signals - through wires, buses, and other signal harnesses - are combined to form a higher level Signal Harness. Signal Harnesses enable the logical grouping of different signals for increased flexibility and streamlined design.

For detailed information about this object type, see Harness Entry.


Harness Entries are available for placement in the Schematic Editor only, by:

  • Choosing Place » Harness » Harness Entry from the main menus.
  • Locating and using the Harness Entry command () on the Active Bar.
If the command has been recently used from the Active Bar, it will become the active/visible button. Where other commands are available, this is indicated by a triangle at the bottom-right corner of the button. Click and hold on the active button to access a menu of all associated commands for that grouping.
  • Clicking the  button on the Wiring toolbar.
  • Right-clicking and choosing Place » Harness » Harness Entry from the context menu.

Harness entries can also be managed in the following non-graphical ways:

  • Added/edited/removed as part of a Harness Connector definition - either during, or after placement of that connector, in the Entries section of the Properties panel.
  • Added/edited/removed as part of the textual harness connector definition, through a harness definition file (*.Harness). Such a defined harness connector can only be placed in the design using the Place » Harness » Predefined Harness Connector command, from the main, or right-click menus.
If a Harness Definition is locked and a new Harness Entry is added to the graphical representation, the Conflicting Harness Definition violation will be displayed upon compilation.


After launching the command, the cursor will change to a cross-hair and you will enter harness entry placement mode. Placement is made by performing the following sequence of actions:

  1. Move the harness entry attached to the cursor over a placed harness connector on the sheet.
  2. Adjust the position of the harness entry in relation to the edge of the harness connector, opposite the connector's tip, then click or press Enter to anchor the harness entry, and complete placement.
  3. Continue placing further harness entries, or right-click or press Esc to exit placement mode.
The coloring of the harness entry will aid in its correct placement. While outside of a harness connector, the entry will appear greyed-out, and you will be prevented from placing. When over a harness connector, the entry will revert to its true coloring, as defined by its Text Color property, indicating it can validly be placed at that location.

While the harness entry is still floating on the cursor, and while it is within the bounds of a harness connector, press the Tab key to access the Properties panel, from where properties for the entry can be changed on-the-fly. Pressing Tab pauses placement, allowing you to interact with the panel (or other area of the software) directly. To resume, click the pause symbol that appears over the workspace.


  1. A Harness Entry can be connected directly to a wire, a bus, or a signal harness.
  2. Should you need to negate (include a bar over the top of) a harness entry name, this can be done in two ways:
    1. By including a backslash character after each character in the name (e.g. E\N\A\B\L\E\).
    2. By enabling the Single '\' Negation option on the Schematic- Graphical Editing page of the Preferences dialog, then including one backslash character at the start of the name (e.g. \ENABLE).
  3. For information on how a placed harness entry object can be modified graphically, directly in the workspace, see Graphical Editing.
  4. While attributes can be modified during placement (Tab to bring up the Properties panel), bear in mind that these will become the default settings for further placement unless the Permanent option on the Schematic - Defaults page of the Preferences dialog is enabled. When this option is enabled, changes made will affect only the object being placed and subsequent objects placed during the same placement session.


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