Harness Level

Also referred to as derivative harness, this a sub-set of the content of a harness on a vehicle, corresponding to precise combinations of options and variant options.

The relationship between a harness and its derivative levels is typically described in a table such as the following:

Figure 160: Harness Levels Example

In this table, derivative harness level part numbers are listed on the left side and you can deduce their option content (and applicability to a vehicle configuration) from the intersection with the columns representing the options (or variant options).

The Define Harness Levels Dialog Box enables you to manually define harness levels (derivatives) for the harnesses in a design. When you define a harness level, you specify which vehicle model(s) and which options the harness level supports. This breaks the harness down into a number of buildable levels.

If you have previously-defined harness levels stored in an XML file, you can import this file so that you do not have to manually define the levels again. See Importing Harness Level Definitions.

Before synthesizing wiring for signals, you set which harness level is active for each harness, the system takes this information into account when synthesizing wiring. You can also use a vehicle configuration to set which harness level is active for each harness.

If there are too many harness levels, you can either specify giveaway options when working with Composite Wiring Synthesis or manually combine some harness levels in the Define Harness Levels dialog box. This second option creates a parent-child relationship where a parent harness level (to which you have referred the other harness level) supports all the options in the referred harness level.

When you combine harness levels that contain mutually exclusive options, the parent harness level is marked as supporting both of these mutually exclusive options.

If you are working with composite harnesses, you can use Composite Wiring Synthesis to generate harness levels automatically.

If you have the necessary license, Capital Configuration Optimizer can also be used to generate harness levels automatically. See Capital Configuration Optimizer- Product Planner and Capital Configuration Optimizer - Harness Level Optimization.

You can use the Edit Properties dialog box to add general properties to a harness level and to give it a part number.

For an example of harness levels in a project, see Examples of Composite Data.

• Specifying the Options that Affect a Harness

• Creating a Harness Level for a Harness

• Editing a Harness Level for a Harness

• Combining Harness Levels into One

• Merging Two Harness Levels into One

• Editing the Properties of a Harness Level

• Specifying a Part Number for a Harness Level

• Deleting Abstract Harness Levels

• Active Harness Level

Parent Topic:

Composite Data Management

Capital Systems Integrator User Guide, 2512.2606

Unpublished work. © 2026 Siemens