--- title: OptoBlog | optonews (5) description: optonews | (5) --- - [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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[Privacy Policy](https://www.opto22.com/support/privacy) - [About Us](https://www.opto22.com/about-us) - [History](https://www.opto22.com/about-us/history) - [Location](https://www.opto22.com/about-us/directions) - [Corporate Contacts](https://www.opto22.com/about-us/corporate-contacts) - [Opto 22 Product Philosophy](https://www.opto22.com/about-us/opto-22-product-philosophy) - [Customer Quotes/Testimonials](https://www.opto22.com/about-us/customer-quotes-testimonials) - [Virtual Tour](https://www.opto22.com/about-us/virtual-tour) - [Pressroom](https://www.opto22.com/about-us/pressroom) - [Distributors](https://www.opto22.com/about-us/distributors) - [International](https://www.opto22.com/about-us/international) - [Sustainability](https://www.opto22.com/about-us/sustainability) - [Careers](https://www.opto22.com/about-us/careers) - [Community](https://www.opto22.com/community) - [OptoPartners](https://www.opto22.com/community/opto-partners) - [Technology Partners](https://www.opto22.com/community/technology-partners) - [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 ## [OptoNews: Custom desalination system for Bahamas resort](https://blog.opto22.com/optoblog/optonews-custom-desalination-system-for-paradise-island-resort) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jan 4, 2017, 3:40:07 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/isi_water_before_224x168.png)](https://blog.opto22.com/optoblog/optonews-custom-desalination-system-for-paradise-island-resort) Once a haven for pirates, today Nassau and nearby islands host thousands of tourists. One essential to keep tourists happy and healthy is fresh water, and most resorts rely on desalination to provide it. [Read More](https://blog.opto22.com/optoblog/optonews-custom-desalination-system-for-paradise-island-resort) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-custom-desalination-system-for-paradise-island-resort#comments-listing) Topics: [Case studies](https://blog.opto22.com/optoblog/topic/case-studies), [Process control](https://blog.opto22.com/optoblog/topic/process-control), [Water & wastewater](https://blog.opto22.com/optoblog/topic/water-amp-wastewater), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [Integrators](https://blog.opto22.com/optoblog/topic/integrators), [OptoNews 2017-01-04](https://blog.opto22.com/optoblog/topic/optonews-2017-01-04) ## [OptoNews Tip: Top 4 tech tips from 2016](https://blog.opto22.com/optoblog/optonews-tip-top-4-tech-tips-from-2016) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Jan 4, 2017, 3:39:10 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/sinking_sourcing_demo_356x347-7.png)](https://blog.opto22.com/optoblog/optonews-tip-top-4-tech-tips-from-2016) Did you miss any of these technical tips? Now's a good time to review some automation basics—and look ahead to new technologies in our field. [Accuracy and resolution](https://blog.opto22.com/optoblog/optonews-tech-tip-accuracy-and-resolution). Specifications for both of these are included for our analog modules. What's the difference? [Sinking and sourcing](https://blog.opto22.com/optoblog/optonews-sinking-and-sourcing-explained). What do these terms mean when you're wiring digital DC outputs, and which is the better way to wire? Lots of questions and answers on this one. [Read More](https://blog.opto22.com/optoblog/optonews-tip-top-4-tech-tips-from-2016) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-tip-top-4-tech-tips-from-2016#comments-listing) Topics: [Discrete control](https://blog.opto22.com/optoblog/topic/discrete-control), [Tips](https://blog.opto22.com/optoblog/topic/tips), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [I/O](https://blog.opto22.com/optoblog/topic/io), [SSRs](https://blog.opto22.com/optoblog/topic/ssrs), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [OptoNews 2017-01-04](https://blog.opto22.com/optoblog/topic/optonews-2017-01-04), [Raspberry Pi](https://blog.opto22.com/optoblog/topic/raspberry-pi), [Digital I/O for Raspberry Pi](https://blog.opto22.com/optoblog/topic/digital-i-o-for-raspberry-pi) ## [OptoNews: Holiday Schedule 2016 and Thank You!](https://blog.opto22.com/optoblog/optonews-holiday-schedule-2016) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Dec 14, 2016, 3:59:14 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/holiday_ornaments_224x169-1.png)](https://blog.opto22.com/optoblog/optonews-holiday-schedule-2016) **All of us here at Opto 22 want to THANK YOU** for the valuable work you do every day in our industry, for your contributions to the OptoForum, and for your interest in Opto 22 products. We wish you and yours a happy holiday season and a joyous New Year! [Read More](https://blog.opto22.com/optoblog/optonews-holiday-schedule-2016) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-holiday-schedule-2016#comments-listing) Topics: [optonews](https://blog.opto22.com/optoblog/topic/optonews), [OptoNews 2016-12-14](https://blog.opto22.com/optoblog/topic/optonews-2016-12-14) ## [OptoNews: Data center retrofit after 30 years](https://blog.opto22.com/optoblog/optonews-data-center-retrofit-after-30-years) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Dec 14, 2016, 3:58:11 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/afs_cs_video_280x161.png)](https://blog.opto22.com/optoblog/optonews-data-center-retrofit-after-30-years) - Think about how much computers have changed in the last 30 years. - Think about the quantity of data that enterprise data centers (EDCs) process today. - And think about how facility management priorities have changed to meet rising energy costs. Now imagine what needs to be done to update a 30-year-old EDC. [Read More](https://blog.opto22.com/optoblog/optonews-data-center-retrofit-after-30-years) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-data-center-retrofit-after-30-years#comments-listing) Topics: [Energy management](https://blog.opto22.com/optoblog/topic/energy-management), [Case studies](https://blog.opto22.com/optoblog/topic/case-studies), [Videos](https://blog.opto22.com/optoblog/topic/videos), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [Building management](https://blog.opto22.com/optoblog/topic/building-management), [Security](https://blog.opto22.com/optoblog/topic/security), [REST API](https://blog.opto22.com/optoblog/topic/rest-api), [RESTful server](https://blog.opto22.com/optoblog/topic/restful-server), [REST](https://blog.opto22.com/optoblog/topic/rest), [OptoNews 2016-12-14](https://blog.opto22.com/optoblog/topic/optonews-2016-12-14) ## [OptoNews: New PAC REST API video - exchange data with Access database](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-access-database) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Dec 14, 2016, 3:57:22 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/rest_api_to_access_video_280x158.png)](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-access-database) In the last OptoNews, we showed you how an Excel® spreadsheet can [exchange data with an Opto 22 SNAP PAC](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-excel) using the [SNAP PAC controllers' RESTful API](https://info.opto22.com/snap-pac-rest-api-thank-you) (application programming interface). This time we'll show you how you can use the REST API with a Microsoft® Access® database.  [Read More](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-access-database) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-access-database#comments-listing) Topics: [Videos](https://blog.opto22.com/optoblog/topic/videos), [Internet of Things](https://blog.opto22.com/optoblog/topic/internet-of-things), [IoT](https://blog.opto22.com/optoblog/topic/iot), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [Integrators](https://blog.opto22.com/optoblog/topic/integrators), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [API](https://blog.opto22.com/optoblog/topic/api), [REST API](https://blog.opto22.com/optoblog/topic/rest-api), [RESTful server](https://blog.opto22.com/optoblog/topic/restful-server), [REST](https://blog.opto22.com/optoblog/topic/rest), [IIoT](https://blog.opto22.com/optoblog/topic/iiot), [Industrial Internet of Things](https://blog.opto22.com/optoblog/topic/industrial-internet-of-things), [OptoNews 2016-12-14](https://blog.opto22.com/optoblog/topic/optonews-2016-12-14) ## [OptoNews Tip: Using Node-RED with Raspberry Pi](https://blog.opto22.com/optoblog/optonews-tip-using-node-red-with-raspberry-pi) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Dec 14, 2016, 3:56:38 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/g4_io_for_raspberry_pi_8m_280x217.png)](https://blog.opto22.com/optoblog/optonews-tip-using-node-red-with-raspberry-pi) It's true: you can [use your Raspberry Pi](https://info.opto22.com/raspberry-pi-io) to monitor and control real-world industrial devices. Reliable Opto 22 G4 digital I/O and SNAP digital I/O now work with your Pi.  One of the simplest ways to program your Pi may be **Node-RED**, designed by IBM Emerging Technologies. [Read More](https://blog.opto22.com/optoblog/optonews-tip-using-node-red-with-raspberry-pi) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-tip-using-node-red-with-raspberry-pi#comments-listing) Topics: [Discrete control](https://blog.opto22.com/optoblog/topic/discrete-control), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [I/O](https://blog.opto22.com/optoblog/topic/io), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [G4 I/O](https://blog.opto22.com/optoblog/topic/g4-i-o), [OptoNews 2016-12-14](https://blog.opto22.com/optoblog/topic/optonews-2016-12-14), [Raspberry Pi](https://blog.opto22.com/optoblog/topic/raspberry-pi), [Digital I/O for Raspberry Pi](https://blog.opto22.com/optoblog/topic/digital-i-o-for-raspberry-pi) ## [OptoNews: Now sense & switch industrial loads with your Raspberry Pi](https://blog.opto22.com/optoblog/optonews-now-sense-switch-industrial-loads-with-your-raspberry-pi) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Nov 30, 2016, 4:08:05 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/pi_board_w_snap_top_200x98.png)](https://blog.opto22.com/optoblog/optonews-now-sense-switch-industrial-loads-with-your-raspberry-pi) Did you ever think a [Raspberry Pi](https://www.raspberrypi.org/)® could monitor or control real-world electrical loads like industrial motors, sensors, and pumps? Well, now it can! The new [Digital I/O Carrier Board for Raspberry Pi](http://www.opto22.com/site/pr_details.aspx?cid=4&item=OPTO-P1-40P) (part number [OPTO-P1-40P](http://www.opto22.com/site/pr_details.aspx?cid=4&item=OPTO-P1-40P)) makes it possible. [Read More](https://blog.opto22.com/optoblog/optonews-now-sense-switch-industrial-loads-with-your-raspberry-pi) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-now-sense-switch-industrial-loads-with-your-raspberry-pi#comments-listing) Topics: [Discrete control](https://blog.opto22.com/optoblog/topic/discrete-control), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [New products](https://blog.opto22.com/optoblog/topic/new-products), [I/O](https://blog.opto22.com/optoblog/topic/io), [IIoT](https://blog.opto22.com/optoblog/topic/iiot), [OptoNews 2016-11-30](https://blog.opto22.com/optoblog/topic/optonews-2016-11-30) ## [OptoNews: Opto 22 now a Dell IoT Solutions Partner](https://blog.opto22.com/optoblog/optonews-opto-22-now-a-dell-iot-solutions-partner) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Nov 30, 2016, 4:07:04 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Dell_IoT-Solutions-Partner-Logo_224x78.png)](https://blog.opto22.com/optoblog/optonews-opto-22-now-a-dell-iot-solutions-partner) If you're looking to connect real-world signals and industrial "things" to Information Technology (IT) systems, cloud software, and mobile devices, you already know Opto 22 products will serve you well. [Read More](https://blog.opto22.com/optoblog/optonews-opto-22-now-a-dell-iot-solutions-partner) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-opto-22-now-a-dell-iot-solutions-partner#comments-listing) Topics: [groov](https://blog.opto22.com/optoblog/topic/groov), [Internet of Things](https://blog.opto22.com/optoblog/topic/internet-of-things), [IoT](https://blog.opto22.com/optoblog/topic/iot), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [Networking](https://blog.opto22.com/optoblog/topic/networking), [I/O](https://blog.opto22.com/optoblog/topic/io), [IIoT](https://blog.opto22.com/optoblog/topic/iiot), [Industrial Internet of Things](https://blog.opto22.com/optoblog/topic/industrial-internet-of-things), [OptoNews 2016-11-30](https://blog.opto22.com/optoblog/topic/optonews-2016-11-30) ## [OptoNews: New PAC REST API video - exchange data with Excel](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-excel) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Nov 30, 2016, 4:06:07 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/video_rest_api_w_excel_280x158.png)](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-excel) What does the new built-in [RESTful API in Opto 22 SNAP PAC](https://info.opto22.com/snap-pac-rest-api-thank-you) S-series and R-series programmable automation controllers mean to you? It means you can use a variety of programming languages to easily access data in the PAC. [Read More](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-excel) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-new-pac-rest-api-video-exchange-data-with-excel#comments-listing) Topics: [Videos](https://blog.opto22.com/optoblog/topic/videos), [Internet of Things](https://blog.opto22.com/optoblog/topic/internet-of-things), [IoT](https://blog.opto22.com/optoblog/topic/iot), [optonews](https://blog.opto22.com/optoblog/topic/optonews), [PACs](https://blog.opto22.com/optoblog/topic/pacs), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [API](https://blog.opto22.com/optoblog/topic/api), [REST API](https://blog.opto22.com/optoblog/topic/rest-api), [RESTful server](https://blog.opto22.com/optoblog/topic/restful-server), [REST](https://blog.opto22.com/optoblog/topic/rest), [IIoT](https://blog.opto22.com/optoblog/topic/iiot), [Industrial Internet of Things](https://blog.opto22.com/optoblog/topic/industrial-internet-of-things), [OptoNews 2016-11-30](https://blog.opto22.com/optoblog/topic/optonews-2016-11-30) ## [OptoNews Tip: Set up custom troubleshooting in PAC Manager](https://blog.opto22.com/optoblog/optonews-tip-set-up-custom-troubleshooting-in-pac-manager) Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on Nov 30, 2016, 4:05:40 PM - [Tweet](https://twitter.com/share) [![](http://www.opto22.com/images/optonews/pacmgr_inspect_exclam_pt_640x568.png)](https://blog.opto22.com/optoblog/optonews-tip-set-up-custom-troubleshooting-in-pac-manager) When you're troubleshooting system problems, PAC Manager can be a big help. That's because PAC Manager communicates directly with your controllers and I/O units. You're probably already familiar with PAC Manager's Inspect window, where you can see detailed status data on an I/O unit or controller. This tip shows you a way to create your own custom checks on anything in the Inspect window. [Read More](https://blog.opto22.com/optoblog/optonews-tip-set-up-custom-troubleshooting-in-pac-manager) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optonews-tip-set-up-custom-troubleshooting-in-pac-manager#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), [PAC Manager](https://blog.opto22.com/optoblog/topic/pac-manager), [OptoNews 2016-11-30](https://blog.opto22.com/optoblog/topic/optonews-2016-11-30) [Previous](https://blog.opto22.com/optoblog/topic/optonews/page/4) [All posts](https://blog.opto22.com/optoblog/all) [Next](https://blog.opto22.com/optoblog/topic/optonews/page/6) ### 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) - 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