--- title: OptoBlog | PAC Control description: PAC Control | --- - [Log in](https://www.opto22.com/logon?returnurl=%2f) - [Register](https://www.opto22.com/Special-Pages/Logon.aspx) - [Your Cart](https://www.opto22.com/Checkout/Shopping-Cart) - [Contact Us](https://www.opto22.com/support/contact-us) [![Opto 22 Logo](https://blog.opto22.com/hubfs/opto22_lightsilvergradient_800px.png "Opto 22 Logo")](https://www.opto22.com) - [Products](https://www.opto22.com/products) - [What Do You Want to Do?](https://www.opto22.com/products/what-do-you-want-to-do) - [groov RIO](https://www.opto22.com/products/groov-rio) - [groov EPIC System](https://www.opto22.com/products/groov-epic-system) - [Case Studies](https://www.opto22.com/products/groov-case-studies) - [Product Selector](https://www.opto22.com/products/product-selector) - [Product Families](https://www.opto22.com/products/product-families) - [IIoT System Architecture](https://www.opto22.com/support/resources-tools/demos/groov-epic-groov-rio-architecture) - 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[Education Partnerships](https://info.opto22.com/partnering-in-education) - [Opto Blog](https://blog.opto22.com/) - [Opto Forums](http://forums.opto22.com/) - [Events](https://www.opto22.com/community/events) - [Articles](https://www.opto22.com/articles) - [Log In](https://www.opto22.com/logon) - [Register](https://www.opto22.com/Special-Pages/Logon.aspx) - [Your Cart](https://www.opto22.com/Checkout/Shopping-Cart) - [Contact Us](https://www.opto22.com/support/contact-us)   # OptoBlog # OptoBlog ## [Stay up to date with SNAP PAC firmware R10.7c](https://blog.opto22.com/optoblog/stay-up-to-date-with-snap-pac-firmware-r10.7c) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Sep 29, 2026, 10:04:50 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/snap-pac-r1_p-1.png)](https://blog.opto22.com/optoblog/stay-up-to-date-with-snap-pac-firmware-r10.7c) ### The latest firmware release is now available for your SNAP PAC System. If you are using any of the following SNAP PAC System controllers or brains, you'll want to take a look at the new R10.7c update:  [SNAP PAC R-series](https://www.opto22.com/products/product-selector?keyword=&c1=&c2=&tag=1560,1514&approval=&numres=25&page=1&leg=0&obs=0) [SNAP PAC S-series](https://www.opto22.com/products/product-selector?keyword=&c1=&c2=&tag=1560,1572&approval=&numres=25&page=1&leg=0&obs=0) [SoftPAC](https://www.opto22.com/products/softpac) [G4EB2 brains](https://www.opto22.com/products/product-selector?keyword=g4eb2&c1=&c2=&tag=&approval=&numres=25&page=1&leg=0&obs=0) See the latest fixes covered in this release. [Read More](https://blog.opto22.com/optoblog/stay-up-to-date-with-snap-pac-firmware-r10.7c) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/stay-up-to-date-with-snap-pac-firmware-r10.7c#comments-listing) Topics: [Firmware](https://blog.opto22.com/optoblog/topic/firmware), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [snap pac](https://blog.opto22.com/optoblog/topic/snap-pac), [SoftPAC](https://blog.opto22.com/optoblog/topic/softpac) ## [Time to update: PAC Project 10.6002 is available now](https://blog.opto22.com/optoblog/time-to-update-pac-project-10.6002-is-available-now) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Aug 4, 2026, 12:33:35 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/blog.opto22.comhubfssocial-suggested-imagesPACProjectBas_1600-3.png)](https://blog.opto22.com/optoblog/time-to-update-pac-project-10.6002-is-available-now) ### Take advantage of several new features, fixes and improvements in this latest release of the PAC Project software suite, R10.6002. Whether you use Opto 22's basic or professional version of the PAC Project Software Suite, you'll want to hear about some new features and enhancements just added to PAC Control as well as some fixes for PAC Display. Let's review the highlights. [Read More](https://blog.opto22.com/optoblog/time-to-update-pac-project-10.6002-is-available-now) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/time-to-update-pac-project-10.6002-is-available-now#comments-listing) Topics: [PAC Project](https://blog.opto22.com/optoblog/topic/pac-project), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [PAC Manager](https://blog.opto22.com/optoblog/topic/pac-manager), [PAC Display](https://blog.opto22.com/optoblog/topic/pac-display), [OptoOPCServer](https://blog.opto22.com/optoblog/topic/optoopcserver), [OptoDataLink](https://blog.opto22.com/optoblog/topic/optodatalink) ## [Update ready for your PAC Project Software Suite](https://blog.opto22.com/optoblog/update-ready-for-your-pac-project-software-suite) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Nov 4, 2025, 11:45:32 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/blog.opto22.comhubfssocial-suggested-imagesPACProjectBas_1600-3.png)](https://blog.opto22.com/optoblog/update-ready-for-your-pac-project-software-suite) ### Take advantage of new features, fixes, and improvements in this latest release of the PAC Project software suite, R10.6. Whether you use Opto 22's basic or professional version of the PAC Project Software Suite, you'll want to hear about some new features and enhancements just added in the latest release. Let's review the highlights and see what changes you can expect in PAC Control, PAC Manager, and PAC Display. [Read More](https://blog.opto22.com/optoblog/update-ready-for-your-pac-project-software-suite) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/update-ready-for-your-pac-project-software-suite#comments-listing) Topics: [PAC Project](https://blog.opto22.com/optoblog/topic/pac-project), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [PAC Manager](https://blog.opto22.com/optoblog/topic/pac-manager), [PAC Display](https://blog.opto22.com/optoblog/topic/pac-display), [OptoOPCServer](https://blog.opto22.com/optoblog/topic/optoopcserver), [OptoDataLink](https://blog.opto22.com/optoblog/topic/optodatalink) ## [Accelerate your application](https://blog.opto22.com/optoblog/accelerate-your-application) Posted by [Dan White](https://blog.opto22.com/optoblog/author/dan-white) on Jul 16, 2025, 8:05:25 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/AccelerateIgnitionExchange.png)](https://blog.opto22.com/optoblog/accelerate-your-application) ### Take advantage of free tools to jumpstart your industrial automation projects. Whether you're an engineer, technician, or developer, starting a new project can be daunting. But what if you could hit the ground running with resources that streamline your workflow? Let's explore how you can accelerate your application using a suite of free tools designed to simplify and expedite your development process. [Read More](https://blog.opto22.com/optoblog/accelerate-your-application) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/accelerate-your-application#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [developer](https://blog.opto22.com/optoblog/topic/developer), [Ignition](https://blog.opto22.com/optoblog/topic/ignition), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [python](https://blog.opto22.com/optoblog/topic/python) ## [OEM Integrates Open SDKs to Stay Competitive](https://blog.opto22.com/optoblog/oem-integrates-open-sdks-to-stay-competitive) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Jul 16, 2024, 9:39:26 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Gurtler-Central-vistex-cropped_5point5x3_300dpi.png)](https://blog.opto22.com/optoblog/oem-integrates-open-sdks-to-stay-competitive) ### Laundry OEM Gurtler Industries reinvents their dispensing systems with *groov* EPIC and Opto 22's free Software Development Kits (SDKs). What do you do when competitors in the chemical storage and dispensing industry are surpassing you, and a shift in technology is needed to put you back at the forefront of laundry operations? Learn how Gurtler Industries, a third-generation family business based in the United States Midwest, regained its position as a leading provider of laundry chemical products, services, and support for many industries including healthcare, hospitality, and textile rentals. When their competitors began leveraging data collection, remote monitoring, and enhanced visualizations, Gurtler knew they also needed to expand the capabilities of their dispensing systems to maintain their competitive market position. In this [case study](https://www.opto22.com/products/groov-case-studies/case-study-open-source-platform-supports-oem-integ), find out how Gurtler Industries was able to stay ahead of the competition by transitioning to an open-source platform with Opto 22's free Software Development Kits (SDKs) and advanced hardware solutions. [Read More](https://blog.opto22.com/optoblog/oem-integrates-open-sdks-to-stay-competitive) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/oem-integrates-open-sdks-to-stay-competitive#comments-listing) Topics: [Case studies](https://blog.opto22.com/optoblog/topic/case-studies), [OEM](https://blog.opto22.com/optoblog/topic/oem), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [sdk](https://blog.opto22.com/optoblog/topic/sdk) ## [Variables vs. Literals](https://blog.opto22.com/optoblog/variables-vs.-literals) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on May 1, 2024, 12:57:26 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/VariableBenBlogPic1.png)](https://blog.opto22.com/optoblog/variables-vs.-literals) ### Understanding different data types in your PAC Control programming. You don’t need to have the title "software engineer" on your business card before you code up your first automation process. In fact, I suspect that many industrial automation folks are like me—self-taught and come from the school of hard knocks. This blog post is more of a musing out loud than a "you must" edict. Programming, after all, is often more art than science. [Read More](https://blog.opto22.com/optoblog/variables-vs.-literals) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/variables-vs.-literals#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [technical tips](https://blog.opto22.com/optoblog/topic/technical-tips) ## [Add delays to speed up](https://blog.opto22.com/optoblog/add-delays-to-speed-up) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on Apr 17, 2024, 9:00:00 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/paccontrol_delays_wdelay1variation2.gif)](https://blog.opto22.com/optoblog/add-delays-to-speed-up) ### Some tech tip advice to help keep your industrial systems running smoothly. Whenever I say this blog title out loud to the Premium Factory Training class attendees, I get some funny looks. I'm not sure if it's the Aussie accent, or the idea of adding delays to speed up that causes the double-take chuckles. Compute power has come a long way in the last 10 years or so, but regardless, we programmers of all things industrial still need to be mindful of optimizing our code and systems to run as smoothly as they possibly can. Arguably, one of the biggest tips for programming in PAC Control I can share with you all is to add delays through your flow charts and OptoScript blocks. [Read More](https://blog.opto22.com/optoblog/add-delays-to-speed-up) 2 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/add-delays-to-speed-up#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [Factory Training](https://blog.opto22.com/optoblog/topic/factory-training), [technical tips](https://blog.opto22.com/optoblog/topic/technical-tips) ## [groov Manage: Controller](https://blog.opto22.com/optoblog/groov-manage-controller) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on Aug 1, 2023, 8:38:42 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/groovManageControllertumb-gm-controller-20230626-2.jpg)](https://blog.opto22.com/optoblog/groov-manage-controller) ### Week 6 of the *groov* Manage video series brings you a detailed look at the control engines included with *groov* EPIC. You might think we have a sleeper menu feature for this week's blog: only two buttons behind the Controller *groov* Manage menu option. Boring, right? Far from it! This is amazing!  The fact that you can even choose between two control engine options is worth a pause. Learn what's possible in this week's [*groov* Manage: Controller video](https://www.opto22.com/support/resources-tools/videos/playlist-what-is-groov-epic?wchannelid=61lkudfc8c&wmediaid=a185xei3ag). [Read More](https://blog.opto22.com/optoblog/groov-manage-controller) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/groov-manage-controller#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov Manage](https://blog.opto22.com/optoblog/topic/groov-manage), [groov Manage series](https://blog.opto22.com/optoblog/topic/groov-manage-series) ## [RTD with RIO](https://blog.opto22.com/optoblog/rtd-with-rio) Posted by [Terry Orchard](https://blog.opto22.com/optoblog/author/terry-orchard) on May 4, 2023, 2:30:00 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/groovRIOandlogo.png)](https://blog.opto22.com/optoblog/rtd-with-rio) ### Using powerful built-in software, it’s easy to add more functionality to the multifunction, mixed signal I/O on *groov* RIO, including using RTD temperature probes with minimal code. The *groov* RIO [MM1](https://www.opto22.com/products/product-container/grv-r7-mm1001-10), [MM2](https://www.opto22.com/products/product-container/grv-r7-mm2001-10), and even the *groov* EPIC [GRV-MM1001-10](https://www.opto22.com/products/product-container/grv-mm1001-10) modules are extremely flexible, with an incredible number of software configurable options. Even with all that potential, you can do more when you combine this I/O with software tools like PAC Control, CODESYS, Node-RED, and custom Linux programs. A great way to see this is with RTD sensors. [Read More](https://blog.opto22.com/optoblog/rtd-with-rio) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/rtd-with-rio#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [temperature sensor](https://blog.opto22.com/optoblog/topic/temperature-sensor), [RTD](https://blog.opto22.com/optoblog/topic/rtd) ## [SNAP PAC to groov EPIC - Serial modules and I/O configurations](https://blog.opto22.com/optoblog/snap-pac-to-groov-epic-serial-modules-and-io-configurations) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on Nov 10, 2022, 7:57:08 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/EPIC-SNAP.png)](https://blog.opto22.com/optoblog/snap-pac-to-groov-epic-serial-modules-and-io-configurations) ### Honest answers to your questions about making the move from SNAP PAC controllers to *groov* EPIC. I’d like to try and feed two birds with one handful of grain in this blog… We often get these two questions from existing Opto 22 customers who are moving or migrating from SNAP PAC controllers to *groov* EPIC (or sometimes keeping SNAP I/O to work with an EPIC system). 1. Are they the same? 2. Which should I configure first, *groov* Manage or PAC Control? [Read More](https://blog.opto22.com/optoblog/snap-pac-to-groov-epic-serial-modules-and-io-configurations) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/snap-pac-to-groov-epic-serial-modules-and-io-configurations#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [snap pac](https://blog.opto22.com/optoblog/topic/snap-pac) [All posts](https://blog.opto22.com/optoblog/all) [Next](https://blog.opto22.com/optoblog/topic/pac-control/page/2) ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic - [groov EPIC (509)](https://blog.opto22.com/optoblog/topic/groov-epic) - [groov RIO (304)](https://blog.opto22.com/optoblog/topic/groov-rio) - [optonews (218)](https://blog.opto22.com/optoblog/topic/optonews) - [IIoT (214)](https://blog.opto22.com/optoblog/topic/iiot) - [groov (192)](https://blog.opto22.com/optoblog/topic/groov) - [IoT (148)](https://blog.opto22.com/optoblog/topic/iot) - 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