SNAP PAC Sim is Microsoft Windows-based software that simulates the control engine of an Opto 22 programmable automation controller (PAC). You can use SNAP PAC Sim with Opto 22 PAC Project software to develop, download, and debug your PAC Control strategy without a hardware PAC.

Note that PAC Sim is a control engine simulator, not an I/O simulator. If you configure I/O units in your strategy, and the I/O units are not on the Ethernet network of the computer running PAC Sim, you will get errors. For more information, review the README document.

This download is freeware. Before downloading, read the Legal Agreement.

IMPORTANT: SNAP PAC Sim is intended for demonstration and testing only. It is NOT intended to be used in an actual application. SNAP PAC Sim is time limited to operate for only 12 hours at one time. After this time has elapsed, the software must be restarted before it can be used again.

For instructions on using SNAP PAC Sim, refer to the README document.

As of version R9.5a, Microsoft Windows 2000 and XP are no longer supported.

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