PowerLogic 3.0
Date: 3/25/99

TABLE OF CONTENTS

   Introduction
      I   PowerLogic Documentation
      II  Contacting PADS Software, Inc.
      III The README.TXT file
      IV  What's New in PowerLogic 3.0
      V   Corrected Defects
      VI  Frequently Asked Questions
      
   Installation Notes
      I   Help on Installation
      II  General
      III Using Multiple Versions of PowerLogic

   Latest Advisories
      I   Last Minute Advisories
      II  New PADS Libraries
      III Removal of Logic 4.0 ASCII Format
      IV  Loading Older Databases

============
Introduction
============

   This file contains the latest installation notes and other
   pertinent information regarding the installation and the use 
   of PADS-PowerLogic 3.0.

   I. PowerLogic Documentation
   ---------------------------

   PowerLogic documentation is available as PDF and on-line help 
   files only. The following documentation is available:

   HELP
   - advise.hlp. Advisories help.
   - install.hlp. Installation help.
   - libconv.hlp. Library Converter help.
   - powerlogic.hlp. PowerLogic help.
   - plogole.hlp. Automation reference help.

   PDF files for the Automation Reference are available in 
   the \padspwr\documentation\LogicAutomation directory 
   or at Start/Programs/PADS-PowerLogic/Automation Reference.

   PDF files for the PowerLogic Tutorial are available in the
   \padspwr\documentation directory or at Start/Programs/
   PADS-PowerLogic.

   NOTE: PDF files for the PowerLogic User's Guide are not 
         available for the initial release of PowerLogic 3.0. 
         They will, however, be available on the Technical Support
         page of PADS' Web site in mid-June.


   II. Contacting PADS Software, Inc.
   ----------------------------------

   Mailing and Shipping Address:
      PADS Software, Inc.
      165 Forest St.
      Marlborough, MA 01752
      USA

   Telephone and Fax Numbers:
      Telephone: 508-485-4300
      Fax: 508-485-7171

   Domestic Sales Telephone and Fax Numbers:
      Telephone: 800-554-7253 ext. 1
      Fax: 508-229-2594
      E-mail: nsales@pads.com

   International Sales Telephone and Fax Numbers:
      Telephone: 508-485-4300
      Fax: 508-485-9580
      E-mail: isales@pads.com

   Technical Support:
      The PADS Software Technical Support Department is staffed
      from 8:30 AM to 8:00 PM EST.
      Telephone: 508-485-0671
      Fax: 508-485-7171
      BBS: 508-485-2171
      Web: www.pads.com
           See the Technical Support page to e-mail technical support.

   Web site:
      www.pads.com

 
   III. The README.TXT File
   ------------------------

    The installation program copies README.TXT (this file) to your 
    \padspwr\powerlogic directory. 


   IV. What's New in PowerLogic 3.0
   ---------------------------------

   * Undo/Redo capability.

   * Improved attribute generation and management.

   * .ole and .sch files are combined in one .sch file.

   * PowerPCB 3.0 netlist format.

   * Inclusion of the Sax Basic Engine, a Visual Basic editor.

   * PowerLogic 3.0 is now an Automation server with API 
     fuction calls. A list of the Automation server function
     calls is available in the PowerLogic Automation Help, 
     plogole.hlp. This file is located in your \padspwr\
     powerlogic directory.

   * New version 3.0 library format.

   * A library converter is provided to update libraries to the 
     new version 3 library format.

   * Increased database limits.

   * Includes enhanced wizards for CAE decal and hierarchy 
     symbol generation.

   * Includes an Object Selector toolbar that provides object mode 
     selection functions similar to PowerPCB. The filter commands
     available from the Object Selector toolbar are also available
     from a new Filter command on the Edit menu. 

   * Includes defect fixes for old and new areas of PowerLogic.

   * Use of the "-" separator between gates and pins.

   * Includes part and connection add/delete functions for backward
     ECO.

   * Includes improved ECOGEN algorithms.
	
   * The Add and Query/Modify Netname and Busname dialog boxes 
     include lists containing existing names in design.

   * Includes a Group Paste Preference to preserve reference 
     designators.

   * Includes a Schematic Design Attribute Manager command in the 
     Tools menu.

   * Autogenerated netnames are visible on off-page component pins.


   V.  Corrected Defects
   ---------------------

   For a complete list of corrected defects, see the "What's Corrected
   in PowerLogic" topic in the Advisories On-line Help. Corrected
   defects are also listed on the Technical Support page of PADS' Web 
   site. 


   VI. Frequently-Asked Questions
   ------------------------------

   Access a "Frequently Asked Questions" topic in the PowerLogic On-
   line Help. PADS periodically updates the frequently asked 
   questions.


==================
Installation Notes
==================

   I. Help on Installation
   -----------------------

   Press F1 during installation for complete on-line help on the 
   installation process. You can also access on-line help prior to 
   installation by choosing the Help button on the Autorun screen 
   that appears when you insert the CD into the CD drive. 


   II.  General  
   ------------

   PowerLogic 3.0 was developed for use on Windows 95, Windows 98, and 
   Windows NT 4.0.
   
   PowerLogic 3.0 is available on CD only. 


   III. Using Multiple Versions of PowerLogic
   ------------------------------------------

   PowerLogic 3.0 uses the same directory structure, executable name, 
   and .ini filename as previous versions of PowerLogic. To preserve 
   the integrity of an existing version of PowerLogic, including its 
   directory structure, you must make some system modifications before 
   installing version 3.0. 

   If you own a previous version of PowerLogic and want to
   continue to use it, you can use the following methods to set up 
   multiple versions:

    For PowerLogic 1.1 and 1.2
    --------------------------

    PADS recommends this method.

      Before Installing New Versions
      -------------------------------------------

      1) In Windows Explorer, go to the \windows directory (for 
         Windows 95 or Windows 98) or the \winnt directory (for
         Windows NT).
  
      2) Move the powerlogic.ini file from this directory to the 
         \padspwr\powerlogic directory (or directory where your
         PowerLogic 1.1 or PowerLogic 1.2 executable is located).

      Installing PowerLogic 3.0
      -------------------------

      1) Install PowerLogic. When installing PowerLogic, you need to 
         specify the location into which to install PowerLogic. You 
         need to install the latest version of PowerLogic into a 
         directory different from the existing version of PowerLogic.
         For example, if PowerLogic 1.1 is installed in c:\padspwr 
         (the default directory), then install PowerLogic 3.0 into a
         different directory, such as c:\padspwr30.

         NOTE: Do not use spaces in directory names.

      2) When installing PowerLogic, you are prompted to select a 
         program group into which to install PowerLogic. Do not 
         install to the same program group you used for a previous
         PowerLogic installation. For example, if PowerLogic 1.1 is
         installed in PADS-PowerLogic, install PowerLogic 3.0 into
         PowerLogic3.0.

      Do not use a previous powerlogic.ini file with the latest 
      version of PowerLogic and vice-versa. The file structure has
      changed. Using an older powerlogic.ini with the latest 
      PowerLogic version or the latest powerlogic.ini with a 
      previous PowerLogic version may cause system failure and 
      other anomalies. 

  
=================
Latest Advisories
=================

   I.  Last Minute Advisories
   --------------------------

   Advisories for PowerLogic are available in the Advisories On-line 
   Help file, advise.hlp. You can access this file from the PowerLogic
   On-line Help or from the distribution CD. You can view them by 
   category. Advisories are also listed on the Technical Support
   page of PADS' Web site. Advisories added after the software is 
   released to market are marked with an asterisk (*).


   II. New PADS Libraries
   ----------------------

   Updated PADS libraries are provided with PowerLogic 3.0. These 
   libraries are newer than those shipped with PowerPCB 2.x and 
   PowerLogic 1.x, and are designed to work with PowerLogic 3.0
   & greater, PowerPCB 3.0 & greater, and PowerBGA 3.0 and greater. 
   The file extensions for these new libraries is different from 
   version 2.x libraries. The library names are now appended with the
   number 3 (.pt3, .pd3, .ln3, .ld3). 

   Version 2.x or previous libraries are not compatible with 
   PowerLogic 3.0. PowerLogic 3.0 includes a converter that easily 
   upgrades your existing libraries to the new format. The new 
   libraries are not backward compatible. See the Library Converter 
   on-line help file, libconv.hlp, for more information.

   III. Removal of Logic 4.0 ASCII Format
   --------------------------------------

   PowerLogic no longer saves PADS Logic 4.0 ASCII files. 
   PowerLogic no longer opens .sch files that were created
   in versions prior to Logic 4.0. If you want to open a 
   .sch file created prior to Logic 4.0:

   1) Load the .sch file into Logic 4.0.

   2) Save the file in a Logic 4.0 .sch format.

   3) Open the .sch file in PowerLogic 3.0.

   If you want to translate data from PowerLogic 3.0 to Logic 4.0 you 
   must use PowerLogic 1.2 or earlier:

   1) Export your design from PowerLogic 3.0 to a PowerLogic 1.2
      ASCII format.

   2) Import that ASCII file into PowerLogic 1.2 or 1.1.

   3) Export to the Logic 4.0 ASCII format.

   4) Import that ASCII file into Logic 4.0.

      
   IV. Loading Older Databases
   ----------------------------

   PowerLogic can open the following file types without conversion:
   - Logic 4.0 .asc and .sch files 
   - PowerLogic 1.0, 1.1, and 1.2 .asc and .sch files



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