PLECS 1.3 Online Help

PLECS Probe

[Picture]
The PLECS Probe enables you to monitor various quantities in a circuit. Most intrinsic circuit components provide one or more probe signals that describe their current state. For instance, an inductor provides a probe signal that monitors the inductor current; the probe signals of a diode are the diode voltage, current and conduction state. In order to use the PLECS Probe, drag the Probe block from the library into the Simulink model that contains the circuit which you want to probe. Double-click the icon to open the probe editor window.

[Picture]

This window contains the following information.

Probed circuit The text box across the top shows the name of the circuit that you are probing and its path, i.e. the Simulink system containing the Circuit block.

Probed components The list box on the left side shows the components that you have selected for probing. The components are identified by their type, name and path within the circuit. For adding components to this list, simply select them in the schematic editor and drag them into the probe editor. The new components are appended at the bottom of the list. You can reorder the components by using the Up, Down and Remove buttons.

Available signals The list box on the right side shows the available probe signals for the selected component. Use the check boxes next to the signal names in order to enable or disable individual signals. You can simultaneously edit the signal states of several components provided that the components have the same type. In order to select multiple components, hold the Shift or Ctrl key while clicking on a list entry. The output of the Probe block is a vector signal consisting of all enabled probe signals. If no probe signal is enabled a warning message will be printed to the command window and the block will output a scalar zero.


Note  The Probe block must be in the same Simulink model as the Circuit block whose components you want to monitor. In addition, a Probe block only accepts components from one single Circuit block at a time.

Copying a Probe

When you copy a Probe block within the same Simulink model, the component list and the states of the individual probe signals are duplicated. You can edit the copied Probe block independently from the original.

When you copy a Probe block into a dierent Simulink model, all data is cleared from the copied block. This is due to the fact that a Probe block can only monitor components from a circuit residing in the same Simulink model (see the note above).