These former OrCAD Knowledge Base entries have been updated and are now organized by topic for an easier read. They reference only v9.0 and newer.
Markers - Cross Probing
Modeling - Libraries
Modeling - Devices 
Schematic Editors
Simulation
User Interface - Probe
OrCAD Capture-PSpice Flow 
Other
Markers - Cross Probing
- Specifying trace colors in PSpice that correspond to markers in OrCAD Capture more>>
- Markers appear gray sometimes and in color at other times more>>
- Simulation markers in OrCAD Capture disappear after changing simulation profiles more>>
- Deleting a marker does not remove the corresponding trace from the Probe display more>>
- Power marker does not show power for hierarchical block more>>
- Plot window template appears in Probe but not in OrCAD Capture more>>
- Print Preview restores the Printer Setup orientation to default more>>
- Current markers on pins of hierarchical blocks give ERROR -- Must be a two terminal device more>>
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Modeling - Libraries
- ABM expression causes error more>>
- Modeling a frequency dependent inductor for AC sweep analysis more>>
- Solving difficulties in IBIS models translated for PSpice more>>
- Creating an Analog Behavioral Model of a spark gap device more>>
- Model Editor uses different entry modes more>>
- "Skipping section 1. Section 1 has less than 2 rows of data" error more>>
- Libraries that are not supported in PSpice A/D Basics more>>
- Obtaining a Glossary and Index of PSpice part and symbol properties (attributes) more>>
- Power symbol and ground symbol nets do not appear in the netlist if connected to a hierarchical port more>>
- Convergence failure for three winding transformer with non-ideal couplings more>>
- Using BSIM1 ordered parameter lists with MOSFET Level 4 more>>
- Creating a "sample and hold" circuit more>>
- Sinusoidal vs. "AC" sources more>>
- Modulated pulse width pulse source more>>
- Ideal opamp or comparator more>>
- Modeling voltage-controlled and temperature-dependent resistors more>>
- Building a center-tapped transformer in Release 9 more>>
- Syntax for an IF THEN statement for ABM parts more>>
- Changes to voltage and current controlled switches (SBREAK and WBREAK) more>>
- Model Editor: Zero Bias Leakage not extracted for P-channel MOSFET (PMOS) more>>
- Units for R, L, G, and C in any transmission line within the TLINE.LIB file more>>
- Guidelines for using TSMC 0.18u and 0.25u process MOS models with PSpice more>>
- The REF-195 series of parts gives a subcircuit undefined error more>>
- Using programmable logic in PSpice A/D simulations more>>
- Adding a tolerance parameter to a PSpice model more>>
- Finding a part in the library by a characteristic more>>
- Model Editor sends a Nested Subcircuit error message when opening a library, yet the parts simulate correctly more>>
- REXT, CEXT, RINT, CX, and RXCX pins on one-shots no longer require a connection more>>
- Creating a basic 3-winding, ideal transformer more>>
- OrCAD Capture symbols created with PSpice Model Editor do not get saved to existing library more>>
What do attributes V_DTC and V_PWM, for part TL494 in the controller.olb, represent?more>>
Which library contains Ground symbol for use in PSpice project? more>>
Where can I find a time delay component? more>>
Where can I find a non linear source in my PSpice libraries? more>>
What are some tips for modeling optocouplers for PSpice? more>>
How do I pass parameters to a .model statement? more>>
How can I create power sources with tolerances? more>>
I am trying to open a library in model editor and it shows the error message "Nested
subcircuits are not supported". Why? more>>
Modeling - Devices
- How do I create a capacitor model whose value is a function of an independent voltage source
or a net voltage? more>>
- How do I define a Voltage (Current) source that changes amplitude as a function of
frequency? more>>
- How can I use PSpice's ABM feature to solve differential equations? more>>
- In what ways can frequency dependent behavior be modeled with ABM? more>>
- What are the tips for transient effect modeling with ABM? more>>
- How do I simulate MOS libraries, containing binned models that are used with the HSPICE
automatic model selection feature, in PSpice? more>>
- How can I ensure that process corner selection is built into model parameter values? more>>
- Where can I get a model for a transorb bidirectional transient voltage suppressor diode? more>>
- How to create a LOT tolerance used in subckt? more>>
- How do I create a simple NAND gate with ABM? more>>
- What are the types of ABM supported by PSpice? more>>
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Schematic Editors
- Backslashes are interpreted as overbars in file name attributes in Schematics v8.0 more>>
- The VPWL_FILE part displays an error when netlisting in Schematics v8.0. more>>
- Importing vendor SPICE models into MicroSim Schematics more>>
- Creating a center tapped transformer to simulate in PSpice more>>
- Selecting multiple PSpice templates by using inherited properties more>>
- Accessing the PSpice menu in OrCAD Capture. more>>
- DRC error about missing the PSPICETEMPLATE when netlisting more>>
- Configuring part libraries from project to project more>>
- Tips for switching from MicroSim to OrCAD Capture for PSpice users more>>
- Creating a subcircuit for my schematic design more>>
- Defining properties to display in the property spreadsheet more>>
- Maintaining similar library lists for Place Part and for Place Power or Place Ground more>>
- Netlisting ground symbols from CAPSYM.OLB more>>
- Edit Model or Edit Stimulus grayed out in OrCAD Capture more>>
- Assigning a default net name for a power type pin more>>
- Assigning PWR_NODE and GND_NODE for DIGIFPWR in SPECIAL.OLB more>>
- Translating MicroSim Schematics to OrCAD Capture projects more>>
- Translated designs with unconnected pin error more>>
- Descending hierarchical parts in a translated .SLB library more>>
- Locating the PSpice libraries more>>
- Placing ground symbols more>>
- The PSpiceDefaultNet property on power pins more>>
- Using Save As in OrCAD Capture more>>
- Using the Archive Project menu command in OrCAD Capture more>>
- Optimizer specification and Advanced Analysis profile not archived by OrCAD Capture more>>
- Disabling pin conflict errors and warnings in the Session Log more>>
- The != operator in ABM expressions netlists incorrectly more>>
- Using values calculated in Excel for component values more>>
- Translated global ports and grounds are isolated from the rest of the schematic in the netlist more>>
- IF construct substitutions in the PSpiceTemplate are made before identifiers are resolved more>>
- Cannot display bias voltage for pin-to-pin connections more>>
- Recreating the project file as a PSpice project more>>
- Changes to default metric page sizes in Schematics Release 9.1 (PSpice Web Update 1) more>>
- Creating OrCAD Capture symbols for PSpice simulation more>>
- No PSpice menu in OrCAD Capture more>>
- Creating and changing OrCAD Capture/PSpice Project Templates more>>
- A PSpice netlist syntax error occurs when using a underbar in hierarchical net or device names more>>
- Creating a subcircuit part for a page in a hierarchical design more>>
- Setting the Minimum Time Step in PSpice more>>
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Simulation
- AC sweep gives incorrect results for large signals more>>
- Creating Bode plots using PSpice and PSpice A/D with Schematics more>>
- Upper frequency limit of PSpice more>>
- Error: Can't find Stimulus more>>
- Digital signals are in an unknown state more>>
- Using Parametric sweep for multiple component values more>>
- Setting command line options for PSpice in the initialization file more>>
- Starting the simulation when running PSpice from the command line more>>
- The .OPTIONS PREORDER - affecting large circuit simulation speed. more>>
- NRD and NRS defaults for MOSFETs more>>
- MEMUSE has been removed from the .OPTIONS ACCT report more>>
- Command line switches for PSpice more>>
- PRINT STEP is no longer needed for a transient analysis more>>
- PSpice .OPTIONS commands STEPGMIN and PREORDER improve simulation of large circuits more>>
- Collecting envelope max/min trace data for Monte Carlo (.mc) simulations more>>
- Monte Carlo results are worse than Worst Case analysis results more>>
- Opamp gain is small; opamp is not an amplifier more>>
- Bipolar transistor model names can not begin with a number more>>
- "ERROR -- Must be I or V" with Fourier, noise, sensitivity, Monte Carlo, or worst case analysis more>>
- NOM.LIB is re-indexed after copying files to a different drive more>>
- Reducing Probe data file (.DAT file) size by saving data at markers only more>>
- Setting DIGFREQ in PSpice Release 9 more>>
- "Less than 2 connections" error with more than 30,000 devices in a subcircuit more>>
- Parameters for temperature coefficients on resistors more>>
- Convergence or domain error when using ACOS or ASIN functions more>>
- Math exception errors may halt the simulation (divide by zero, overflow, domain errors). more>>
- Troubleshooting guidelines for DC and Bias Point convergence failure more>>
- Troubleshooting guidelines for Transient convergence failure more>>
- Definitions for mean and sigma in the "sorted deviations report of a Monte Carlo analysis more>>
- Specifying Non-symmetrical tolerance specification for Monte Carlo/Worst Case simulations more>>
- OLDTLINETSTEP - backward compatibility option for transmission line time stepping more>>
- VTO temperature dependence in MOSFET models more>>
- Shot noise (NSID) in the diode model decreases rather than increases with current more>>
- Pre-6.3 version backward compatibility for initial conditions on C and L devices more>>
- CGS, CGD, and CGB information in the output file for MOSFET Level 1-3 more>>
- Undefined or Floating Node Error occurs when using IC Parts more>>
- Can't override scheduled changes to maximum time step TMAX more>>
- Use the schedule( ) function to change the maximum time step TMAX during a transient analysis more>>
- When entering a value in the RunFor box to extend a transient analysis, the new value is not used more>>
- Noise analysis (.NOISE) generates "INTERNAL ERROR -- The Probe file is corrupt" more>>
- Creating nested IF statements in PSpice more>>
- Using multiple conditions in an IF statement more>>
Is there an interface between PSpice and MATLAB? more>>
How can I simulate a set of circuit files (*.cir) in PSpice, such that the simulation runs without
any user interaction? more>>
Can you list some of the syntactical differences between SPICE3 and PSpice? more>>
Are there some tips on using transmission gates in PSpice? more>>
How do I create a repeating sine wave digital stimulus? more>>
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User Interface - Probe
- Formulas for the Probe functions RMS(), G(), and AVG() more>>
- Getting a more accurate Fourier analysis of transient results from PSpice more>>
- Creating windowing functions and Fourier integral macros more>>
- Can't simulate when specifying the Output Variable with two nodes more>>
- "Skipping section 1. Section 1 has less than 2 rows of data" error more>>
- Percent complete reported by PSpice sometimes incorrectly reads 100% more>>
- Show Symbol in trace properties has no effect more>>
- Importing Measured Data into Probe more>>
- "Can't zoom in any farther" error when selecting Area under the Zoom command on the View menu more>>
- Obtain s-parameter data from the Probe window more>>
- Changing the displayed or printed trace line widths in Probe more>>
- Naming conventions for simulation profile files more>>
- Probe trace patterns won't work for wide lines in Windows 95/98 more>>
- Using the ENVMIN and ENVMAX functions in the PSpice Probe display more>>
- Speeding up the Probe file's read-in and trace display more>>
- Assigning a cursor to a trace from a multi-run analysis more>>
- Displaying waveforms during simulation shows only the first section of a multi-run analysis more>>
- Last grid settings in Probe are not used when viewing waveforms more>>
- 'Save As Defaults' button in Axis Settings does not save user-defined axis limits more>>
- Cannot locate main menu toolbar in PSpice more>>
- Adding the AREA scaling factor as a property to semiconductor parts (B, D, J, Q, Z) in OrCAD Capture more>>
How do I measure the peak to peak amplitude of a ripple in a DC output of a power supply? more>>
How do I change the font settings for labels and other axes text items in the Probe window? more>>
How do I change the resolution of evaluation results displayed in the Probe window?more>>
How do I measure S-parameters using PSpice? more>>
Why do I get the error "Invalid Expression" when I use the PSPICE exponentiation Operators
(**) in an expression? more>>
How do I display waveforms from two separate data files simultaneously? more>>
How can I use my simulation output as input for another circuit? more>>
How can I change the X-axis variable while observing the simulation results on a multisection
data file? more>>
OrCAD Capture-PSpice Flow
- How do I use downloaded Spice models in a design that can be simulated using PSpice?more>>
- How do I correct the error *Unable to find file devparam.txt*?more>>
- When I try to invoke Model Editor from OrCAD Capture, why do I get the error "Cannot invoke Model
Editor."?more>>
- When I simulate a design with advance analysis parts, a warning message appears in the
session log. Why?more>>
- When using the Edit PSpice Model command on a part in the schematic editor, Model Editor
fails to start and gives the error: Cannot find device.category file. Why?more>>
- Are there any guidelines on how to connect Off-Page connectors and hierarchical ports to a
power symbol in OrCAD Capture?more>>
- How do I convert a PSpice Schematics design to an OrCAD Capture design in PSD15.0?more>>
- How do I specify and use multiple PSpice templates on a part?more>>
Other
- "Error: TEMP environment is not set" more>>
- Using PSpice with dual or multiple processor machines more>>
- Locating the initialization file for PSpice Release 9 more>>
- The .CIR, .NET, .ALS, and .OUT file names are longer than in Release 8 more>>
- Windows system files installed with PSpice A/D, PSpice, and PSpice A/D Basics v9.0 more>>
- Windows registry error "Can't connect to Simulation Server (simsrvr)" when attemping to simulate more>>
- PSpice .INI file names and locations more>>
- Install generates a General Protection Fault (GPF) in ATI2DRAI.DRV more>>
- Installing the PSpice Schematics schematic editor for PSpice more>>
How is PSpice A/D Monte Carlo analysis different from Advanced Analysis Monte Carlo
analysis? more>>
While using Model Editor to add smoke information, how do I know whether Peak, RMS, or
Average values should be entered for a particular maximum specification? more>>
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