--- title: OptoBlog | Jean Femia (22) description: Jean Femia writes about technical subjects and has focused on automation and control systems for more than 15 years. She likes learning about technology and taking corners in her Honda S2000. 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She likes learning about technology and taking corners in her Honda S2000. Find me on: ### Recent Posts ## [OptoNews: Happy 4th of July](https://blog.opto22.com/optoblog/optonews-happy-4th-of-july) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jul 1, 2015, 4:59:23 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/OptoNews/frida_4th_of_july_464x284.png)](https://blog.opto22.com/optoblog/optonews-happy-4th-of-july) Here in Temecula we celebrate the 4th of July by grilling hot dogs and hamburgers, eating ice cream, and then heading over to the sports park to watch fireworks set to music from our local radio station. [Read More](https://blog.opto22.com/optoblog/optonews-happy-4th-of-july) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-happy-4th-of-july#comments-listing) Topics: [Videos](https://blog.opto22.com/optoblog/topic/videos), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [OptoNews 2015-07-01](https://blog.opto22.com/optoblog/topic/optonews-2015-07-01) ## [OptoNews tech tip: Accuracy and resolution](https://blog.opto22.com/optoblog/optonews-tech-tip-accuracy-and-resolution) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jul 1, 2015, 4:58:26 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/OptoNews/accuracy_measurement_464x309.png)](https://blog.opto22.com/optoblog/optonews-tech-tip-accuracy-and-resolution) Accuracy and resolution both appear in specifications for our SNAP analog modules. But what do they mean, exactly?  #### Accuracy Let's start with accuracy, which is pretty easy to understand. Accuracy is how close a measured value is to reality, to the true quantity of what is being measured.  [Read More](https://blog.opto22.com/optoblog/optonews-tech-tip-accuracy-and-resolution) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-tech-tip-accuracy-and-resolution#comments-listing) Topics: [Process control](https://blog.opto22.com/optoblog/topic/process-control), [Tips](https://blog.opto22.com/optoblog/topic/tips), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [OptoNews 2015-07-01](https://blog.opto22.com/optoblog/topic/optonews-2015-07-01) ## [OptoNews: Choosing I/O modules for temperature monitoring](https://blog.opto22.com/optoblog/optonews-temperature-monitoring) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 17, 2015, 4:31:00 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/OptoNews/temperature_gauge_464x307.png)](https://blog.opto22.com/optoblog/optonews-temperature-monitoring) Do you monitor temperatures? A lot of control engineers do, especially in fields like water treatment, refrigeration, thermoforming, refining, food processing, and energy or building management. There are a variety of temperature sensors on the market—ICTDs, thermocouples, RTDs, thermistors, infrared sensors. Accuracy, cost, wiring complexity, and environmental conditions are some of the factors that determine which one is best for your application. [Read More](https://blog.opto22.com/optoblog/optonews-temperature-monitoring) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-temperature-monitoring#comments-listing) Topics: [Energy management](https://blog.opto22.com/optoblog/topic/energy-management), [Process control](https://blog.opto22.com/optoblog/topic/process-control), [Food & beverage](https://blog.opto22.com/optoblog/topic/food-amp-beverage), [Water & wastewater](https://blog.opto22.com/optoblog/topic/water-amp-wastewater), [Machine builder](https://blog.opto22.com/optoblog/topic/machine-builder), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [OEM](https://blog.opto22.com/optoblog/topic/oem), [Integrators](https://blog.opto22.com/optoblog/topic/integrators), [OptoNews 2015-06-17](https://blog.opto22.com/optoblog/topic/optonews-2015-06-17) ## [OptoNews: Pioneer Energy turns flare gas into resources](https://blog.opto22.com/optoblog/optonews-pioneer-energy-case-study) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 17, 2015, 4:30:00 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/OptoNews/pioneer_energy_case_study_464x261.png)](https://blog.opto22.com/optoblog/optonews-pioneer-energy-case-study) Seen from space, light from waste flare gas in the Bakken oil fields of North Dakota is nearly as bright as all the lights from the city of Chicago.  That's a lot of energy going up in smoke. That's a waste of resources, says Pioneer Energy President Dr. Robert Zubrin.  [Read More](https://blog.opto22.com/optoblog/optonews-pioneer-energy-case-study) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-pioneer-energy-case-study#comments-listing) Topics: [Case studies](https://blog.opto22.com/optoblog/topic/case-studies), [Videos](https://blog.opto22.com/optoblog/topic/videos), [Process control](https://blog.opto22.com/optoblog/topic/process-control), [Remote monitoring](https://blog.opto22.com/optoblog/topic/remote-monitoring), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [OptoNews 2015-06-17](https://blog.opto22.com/optoblog/topic/optonews-2015-06-17) ## [OptoNews: New webinar - Put your system on your mobile](https://blog.opto22.com/optoblog/optonews-groov-3-webinar) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 17, 2015, 4:29:26 PM - [Tweet](https://twitter.com/share) [![Watch the new groov webinar](https://blog.opto22.com/hs-fs/hubfs/OptoNews/ben_benson_gr3_webinar_340x227.png?width=240&name=ben_benson_gr3_webinar_340x227.png "Watch the new groov webinar")](http://groov.com/webinar-intro-to-groov/)You've heard us talk about *groov*. Now see how you can get your automation system on your mobile device—without programming—in this new pre-recorded webinar. Opto 22's Ben Orchard and Benson Hougland walk you through it. They're really enthusiastic! And you'll see why. [Watch the recorded webinar](http://groov.com/webinar-intro-to-groov/) at your own time and your own pace. See how you can: [Read More](https://blog.opto22.com/optoblog/optonews-groov-3-webinar) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-groov-3-webinar#comments-listing) Topics: [Webinars](https://blog.opto22.com/optoblog/topic/webinars), [groov](https://blog.opto22.com/optoblog/topic/groov), [Machine builder](https://blog.opto22.com/optoblog/topic/machine-builder), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [OptoNews 2015-06-17](https://blog.opto22.com/optoblog/topic/optonews-2015-06-17) ## [OptoNews Tech Tip: Get sunrise/sunset times](https://blog.opto22.com/optoblog/optonews-tip-get-sunrise-sunset) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 17, 2015, 4:28:24 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/OptoNews/sunset_464x354.png)](https://blog.opto22.com/optoblog/optonews-tip-get-sunrise-sunset) Our tech tip this week comes from Philip in the OptoForum, who shared his PAC Control subroutine code for determining the time the sun rises and sets at a specific latitude.  You could use HTTP requests over the Internet to get this data (discussed earlier in the same thread). But with this OptoScript code you don't need an Internet connection. [Read More](https://blog.opto22.com/optoblog/optonews-tip-get-sunrise-sunset) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-tip-get-sunrise-sunset#comments-listing) Topics: [Tips](https://blog.opto22.com/optoblog/topic/tips), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [OptoNews 2015-06-17](https://blog.opto22.com/optoblog/topic/optonews-2015-06-17) ## [OptoNews: Updated groov View for Android and iOS](https://blog.opto22.com/optoblog/optonews-updated-groov-view-android-ios) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 3, 2015, 4:51:00 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Products/groov_view_on_iphone_152x320.png)](https://blog.opto22.com/optoblog/optonews-updated-groov-view-android-ios) Get the latest *groov* View app for iOS and Android operating systems. New in this release: Support for Android 5.0 (**Lollipop**) and **verification of a valid SSL certificate** on the *groov* Box or *groov* Server. [Read More](https://blog.opto22.com/optoblog/optonews-updated-groov-view-android-ios) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-updated-groov-view-android-ios#comments-listing) Topics: [groov](https://blog.opto22.com/optoblog/topic/groov), [Updates](https://blog.opto22.com/optoblog/topic/updates), [Machine builder](https://blog.opto22.com/optoblog/topic/machine-builder), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [OptoNews 2015-06-03](https://blog.opto22.com/optoblog/topic/optonews-2015-06-03) ## [OptoNews: New .NET Controller SDK for SNAP PAC](https://blog.opto22.com/optoblog/optonews-new-dotnet-controller-sdk) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 3, 2015, 4:50:00 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Products/pac_S-series_400p.png)](https://blog.opto22.com/optoblog/optonews-new-dotnet-controller-sdk) Have you have been waiting for this one? Now you can create a custom application to **read from and write to tags in a PAC Control strategy** running on any of our SNAP PAC programmable automation controllers: - the standalone [PAC S-series](http://www.opto22.com/site/pr_selector.aspx?cid=1&qs=100210241043) (shown at right) - the rack-mounted [PAC R-series](http://www.opto22.com/site/pr_selector.aspx?cid=1&qs=100210241055) - the software-based [SoftPAC](http://www.opto22.com/site/pr_details.aspx?cid=1&item=SOFTPAC) That means you can access tags in the strategy like integer, float, and string variables and tables, as well as analog and discrete input and output points.  [Read More](https://blog.opto22.com/optoblog/optonews-new-dotnet-controller-sdk) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-new-dotnet-controller-sdk#comments-listing) Topics: [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [New products](https://blog.opto22.com/optoblog/topic/new-products), [Integrators](https://blog.opto22.com/optoblog/topic/integrators), [OptoNews 2015-06-03](https://blog.opto22.com/optoblog/topic/optonews-2015-06-03) ## [OptoNews: See Events & Notifications in groov 3 Webinar](https://blog.opto22.com/optoblog/optonews-notifications-in-groov-3-webinar) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 3, 2015, 4:49:29 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Products/groov_notifications_484x339.png)](https://blog.opto22.com/optoblog/optonews-notifications-in-groov-3-webinar) Our last OptoNews introduced the [new features in *groov* 3](https://blog.opto22.com/optoblog/optonews-groov-3), just released, including: - **Events and notifications**, so you can log key events in your system and even send email or text notifications that come right to your phone - **Data simulator tags**, so you can try out gadgets or demonstrate *groov* without having to connect to real equipment ### Now see the webinar! [Read More](https://blog.opto22.com/optoblog/optonews-notifications-in-groov-3-webinar) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-notifications-in-groov-3-webinar#comments-listing) Topics: [Webinars](https://blog.opto22.com/optoblog/topic/webinars), [groov](https://blog.opto22.com/optoblog/topic/groov), [Updates](https://blog.opto22.com/optoblog/topic/updates), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [OptoNews 2015-06-03](https://blog.opto22.com/optoblog/topic/optonews-2015-06-03) ## [OptoNews Tech Tip: Recovering a PAC Control strategy](https://blog.opto22.com/optoblog/optonews-tip-recovering-pac-control-strategy) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jun 3, 2015, 4:48:00 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hs-fs/file-2557383001-png/Products/PACCONTROLBAS_p_200.png)](https://blog.opto22.com/optoblog/optonews-tip-recovering-pac-control-strategy) - What if your **hard drive fails** while you're developing a PAC Control strategy? - What if you need to **update an old strategy** built by someone else? - What if ..? That's when you're really glad you archived your strategy. [Read More](https://blog.opto22.com/optoblog/optonews-tip-recovering-pac-control-strategy) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-tip-recovering-pac-control-strategy#comments-listing) Topics: [Tips](https://blog.opto22.com/optoblog/topic/tips), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [OptoNews 2015-06-03](https://blog.opto22.com/optoblog/topic/optonews-2015-06-03) [Previous](https://blog.opto22.com/optoblog/author/jean-femia/page/21) [All posts](https://blog.opto22.com/optoblog/all) [Next](https://blog.opto22.com/optoblog/author/jean-femia/page/23) ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic - [groov EPIC (506)](https://blog.opto22.com/optoblog/topic/groov-epic) - [groov RIO (301)](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) - 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