SoftPAC Software-based Programmable Automation Controller

File Size: 263025 KB
Version: R10.5a
Updated: 01/03/2024

SoftPAC™ is a software-based programmable automation controller (PAC) designed for PC-based control.

Programmed just like an Opto 22 hardware PAC, SoftPAC runs your PAC Control strategy independently on an embedded or standalone PC.

One SoftPAC is included in the PAC Project Professional Software Suite, or you can purchase SoftPAC separately and use the free PAC Project Basic Software Suite to program it.

SoftPAC has the following advantages when compared to a hardware PAC:

  • You can run your PAC Control control program (strategy) in a Microsoft Windows environment rather than on a standalone or rack-mounted PAC.
  • If you are a machine builder or an OEM with a PC already in your product, or if you want to use a PC for a new design, your cost for a controller is reduced.
  • SoftPAC takes advantage of a PC’s ability to quickly read and write to files as well as its greater space for data storage. This makes it especially useful for applications requiring extended file storage, frequent access to files, math-intensive processes, or a large number of control flowcharts running at the same time.

For a detailed comparison with hardware PACs, see the SoftPAC Data Sheet (form 2020).

This product includes software and documentation in Adobe Acrobat PDF format as a download. The download file includes other PAC Project software in addition to SoftPAC. 

To find out if you can upgrade to this version for free, see the Opto 22 Software Upgrade Policy

All PAC Project software, both Basic and Professional, is in one single download. You can install the Basic version right away to get started. To install SoftPAC, first purchase the software, and then contact Opto 22 to confirm your purchase and receive your password. More about purchasing software and getting a password.

When you have your password, download and run the installer file. Choose PAC Project Professional and enter your password for SoftPAC.

The following applications are installed by default. If you don't want them all, when prompted during the installation process, uncheck the ones you don't want.

  • SoftPAC
  • PAC Control Basic
  • PAC Display Basic
  • PAC Manager
  • Tools (PAC Utilities)
  • EtherNet/IP Configurator
Note: In any version of SoftPAC R9.4c or lower, if you try to use the Update Firmware link in SoftPAC Monitor to upgrade to version R9.5a or higher, you will not find the correct firmware file. To update SoftPAC from version R9.4c or lower to the latest version, download and run the SoftPAC software installer