About the Power Check Tools

You can add information to your schematic components to indicate power source and load values using the supplied Power Check tools. Once these values are added, you can run the Power Load Check Report to scan the wire interconnections and report if there is too much load on a given power source.

There are 3 tools to use for checking power source/load:

Add/Edit Power Source/Load Levels

Marks a component with a power source and load value. The value is added to an AutoCAD Electrical toolset connection attribute. This dialog box contains a list of available connection points. If you select near the connection point for the power value it is preselected in the dialog box. Enter the power source and load value and an optional units value. These values are saved on the connection point as invisible xdata.

Set Pass Power

Marks a component with a PASSPWR flag. The PASSPWR flag instructs the Power Report to pass through the marked component when calculating the load on a given source. If a component carries the PASSPWR flag the Power Report program passes through the component and continue looking for load values on the network

Power Load Check Report

Looks for any components assigned as a power source and then follows any wires connected to that terminal. When a load is hit, it stops reading on that wire segment and does not search past the load. For example, if you apply a supply value to the left power bus on a ladder, there are a bunch of pilot lights and relay coils in the ladder. AutoCAD Electrical toolset goes down the left bus and checks each connected rung. It reads through contact and terminals, but when it hits a load on a rung, it accumulates the load value (if present) and stops going any further on that rung. The utility still checks the other rungs tied to the left-hand bus and attempts to find more loads.

Tip: Adding Xdata to library symbols before insertion

You can add the Xdata on the library symbol before inserting it. If a drawing already contains that block, use the Update Block option before running the report. Open the library symbol and use the Xdata Editor to add Xdata directly onto the appropriate TERM## attribute. The following xdata can be added at the library level:

  • Source - VIA_WD_PWR_SRC
  • Load - VIA_WD_PWR_LOAD
  • Unit - VIA_WD_PWR_UNIT
  • Potential - VIA_WD_POTENTIAL