--- title: "OptoNews: New blog series helps you troubleshoot" description: Learn about the TCP/IP model, the communication basis of the Internet and automation image: https://blog.opto22.com/hubfs/OptoNews/ethernet_connectors_424x283.png --- - [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) - 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part of the TCP/IP model")](https://blog.opto22.com/optoblog/the-tcpip-model-what-it-is-and-why-you-should-care)How is going to your favorite website like getting data from your PAC to your *groov* Box, or from your PLC to your HMI?  Opto 22 engineer Matt Newton's recent blog post answers that question and introduces you to the underpinnings of both the Internet and a whole lot of industrial automation communications. Matt's post is just the start in a series of blog posts about how to make troubleshooting your system faster and more efficient. The first post introduces the [TCP/IP model](https://blog.opto22.com/optoblog/the-tcpip-model-what-it-is-and-why-you-should-care)—what it is, where it came from, and how it affects both the Internet and automation. Understanding how it all fits together is the first step in easier troubleshooting when things don't work as expected.  You won't want to miss these. [Read the TCP/IP model blog post.](https://blog.opto22.com/optoblog/the-tcpip-model-what-it-is-and-why-you-should-care) [![Read the TCP/IP blog post](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/439485/d1e76fb0-044d-4360-822c-02b613f7014b.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/439485/d1e76fb0-044d-4360-822c-02b613f7014b) Topics: [optonews](https://blog.opto22.com/optoblog/topic/optonews), [Networking](https://blog.opto22.com/optoblog/topic/networking), [OptoNews 2015-12-02](https://blog.opto22.com/optoblog/topic/optonews-2015-12-02) ### Written by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) 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. Find me on: [LinkedIn](https://www.linkedin.com/in/jeanfemia) ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic - [groov EPIC (514)](https://blog.opto22.com/optoblog/topic/groov-epic) - [groov RIO (307)](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) - [Ignition (133)](https://blog.opto22.com/optoblog/topic/ignition) - [Internet of Things (131)](https://blog.opto22.com/optoblog/topic/internet-of-things) - [Node-RED (130)](https://blog.opto22.com/optoblog/topic/node-red) - [PACs (127)](https://blog.opto22.com/optoblog/topic/pacs) - [MQTT (125)](https://blog.opto22.com/optoblog/topic/mqtt) - [Events & conferences (119)](https://blog.opto22.com/optoblog/topic/events-conferences) - [Case studies (111)](https://blog.opto22.com/optoblog/topic/case-studies) - 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