Issue link: https://resources.pcb.cadence.com/i/1180526
PSpice User Guide Setting up analyses and starting simulation October 2019 460 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. 2. If you want to use the original value for a particular parameter, click the Use Original Value check box for that parameter. The original parameter values are derived from the simulation profile. By default, the Use Original Value check boxes are checked (enabled). 3. If you want to change one or more parameters, enter new values for each of the runtime parameters you want to change in the text boxes under the column Change To. If a Change To text box is grayed out, uncheck the Use Original Value check box. 4. Click OK & Resume Simulation to resume the simulation with the new parameters. Note: Simulation is an iterative process in which previous states are used to calculate the current state. When you change a value and resume simulation, the previous state calculated with the original value affects the current state. If you want the changed values to become default values, use the .options command in the profile. Scheduling changes to runtime parameters You may want to predefine a set of values for a parameter and schedule these values to take effect at various time intervals during a long simulation. For instance, you may want to use a smaller time step value during periods where the input stimulus changes rapidly, but otherwise use a larger value. You can set up automatic changes to certain runtime parameters that will occur at scheduled times during a simulation. By scheduling the changes, you don't have to interrupt the simulation manually, and can even run it in a batch mode in the background. The following runtime parameters can be changed at scheduled times during a simulation. Note that these only apply to transient analysis; you cannot interact with other analysis types. ❑ RELTOL ❑ ABSTOL ❑ VNTOL