--- title: "Guest blog: getting started with CODESYS + Ignition Edge on EPIC" description: The DMC Inc. guest blog series wraps up with Part 3—as project engineer Natalie Pippolo explores the PLC functionality of a groov EPIC controller. image: https://blog.opto22.com/hubfs/dmc-logo.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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[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)   # Guest blog: getting started with CODESYS + Ignition Edge on EPIC # OptoBlog # Guest blog: getting started with CODESYS + Ignition Edge on EPIC Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on May 6, 2026, 7:11:07 AM - [Tweet](https://twitter.com/share) ### The DMC Inc. guest blog series wraps up with Part 3—as project engineer Natalie Pippolo explores the PLC functionality of a *groov* EPIC controller. Did you know *groov* EPIC includes several programming options like PAC Control, Node-RED and CODESYS?  In Part 3 of the DMC Engineering's guest blog, Natalie Pippolo returns to show you how to develop a simple program using CODESYS on *groov* EPIC. Follow along as she walks you through each step of the configuration. Hi, it's Natalie from DMC again!  In this blog post, we will explore the “PLC” functionality of the [*groov* EPIC](https://www.opto22.com/products/groov-epic-system), completing our three-part series. Soon you will be ready to get started on your own *groov* EPIC Ignition Edge project! ##### Setting Up the CODESYS Environment The *groov* EPIC supports a handful of programming environments, including PAC Control, Node-RED, and the CODESYS IDE. In this demo, we will use CODESYS to develop a simple program for the EPIC. CODESYS is an IEC 61131-3 compliant environment commonly used across many PLC manufacturers, with a user-friendly interface and support for multiple common IEC standard languages. To enable CODESYS on the EPIC, first open the *groov* Manage web app and enable CODESYS (Controller > CODESYS Controller > Runtime Enable). Note that while the CODESYS application is running, we can no longer control the outputs from the screen made in [blog 2](https://blog.opto22.com/optoblog/guest-blog-getting-started-with-groov-epic-and-ignition-edge), as the outputs are being controlled from the CODESYS program instead. To switch back to controlling I/O from the previous screen, simply disable the CODESYS application from groov Manage. This ability to easily switch back and forth between the two modes can be a huge help during I/O checkout and testing of a large, complex system. Next, open the CODESYS development environment on a PC that is on the same network as your EPIC and configure your device connection. Create a new project and add a new device connection to your *groov* EPIC by entering your device IP and scanning the network. Once connected, your device connection will look something like this. ![DMCPart3_image1_deviceconnection](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_image1_deviceconnection.png?width=624&height=348&name=DMCPart3_image1_deviceconnection.png) You can now click the “Login” button on the top toolbar to go online with your EPIC and monitor tag values directly. ![DMCPart3_loginbutton](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_loginbutton.png?width=126&height=84&name=DMCPart3_loginbutton.png) ##### Configuring Controller Logic in CODESYS Our sample PLC program represents a machine that must not be left running unattended for longer than a set time interval (default of 10 seconds). PB\_UPPER represents the “On” command to the machine, while PB\_LOWER is an additional button that must be held down for the machine to continue running. This input could also be tied to a proximity sensor that determines whether an operator is present at the station. Our buzzer output alerts the operator if the machine has been running unattended for too long. Our simple application consists of two programs. The “main” program, PLC\_PRG calls the subroutine “TurnOnBuzzer”. TurnOnBuzzer takes in both PB statuses, as well as the buzzer delay setpoint, and outputs the desired buzzer on/off state. These two programs illustrate how both text and ladder logic can be used to program your *groov* EPIC in CODESYS. ![DMCPart3_program1](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_program1.png?width=624&height=216&name=DMCPart3_program1.png) ![DMCPart3_program2](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_program2.png?width=624&height=262&name=DMCPart3_program2.png) To map your controller's I/O to tags within your programs, configure a mapping on the “State” tag of each I/O point, as shown below. Then, add a “Symbol Configuration” object to your application. This is where you control permissions for OPC UA read & write access of your PLC tags from Ignition or other applications. You can configure tags to be read-only or read/write based on the needs of your application. ![DMCPart3_SymbolConfiguration](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_SymbolConfiguration.png?width=624&height=326&name=DMCPart3_SymbolConfiguration.png) ![DMCPart3_AddObject](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_AddObject.png?width=316&height=386&name=DMCPart3_AddObject.png) ![DMCPart3_afterAddObject](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_afterAddObject.png?width=624&height=308&name=DMCPart3_afterAddObject.png) Now that our CODESYS program is configured, click the “Login” button and download changes. Next, we’ll set up our Ignition Edge HMI to interact with the CODESYS program. ##### Using Ignition Edge as an HMI for a CODESYS Program Now that our CODESYS OPC server is configured, add a new OPC Connection to your Ignition gateway under Config > OPC Connections. Enter the discovery endpoint of the new CODESYS OPC UA server. If you are using defaults, this will be opc.tcp://localhost:4840. Once this is configured, you will see the new tags you added in CODESYS Symbol Configuration available in Ignition. ![DMCPart3_ServerDiscovery](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_ServerDiscovery.png?width=374&height=180&name=DMCPart3_ServerDiscovery.png) ![DMCPart3_ConnectedDevices](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_ConnectedDevices.png?width=464&height=302&name=DMCPart3_ConnectedDevices.png) For this demo, we are building onto the Ignition HMI that was developed in [part 2 of this blog series](https://blog.opto22.com/optoblog/guest-blog-getting-started-with-groov-epic-and-ignition-edge), with three new pages. The “Alarm Status” page provides an interface to monitor the status of the two push buttons, and contains an indicator of machine runtime, displaying as it counts towards our “buzzer on delay” value. ![DMCPart3_AlarmConditionMonitor](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_AlarmConditionMonitor.png?width=624&height=416&name=DMCPart3_AlarmConditionMonitor.png) The “Config” tab provides an input field that is linked to our “buzzer on delay” PLC parameter. Here the user can configure the limit for continuous machine runtime before the buzzer is triggered. This provides an example of a tag with read/write permissions between CODESYS and Ignition. ![DMCPart3_ControllerParameters](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_ControllerParameters.png?width=316&height=356&name=DMCPart3_ControllerParameters.png) Finally, the “Trends” tab highlights the internal tag historian functionality of Ignition Edge. Without any extra database connections, tags from the *groov* EPIC (both PLC program tags and direct I/O points) can be stored to the Edge historian and trended to monitor values over time. Here, we have configured the temperature reading from our Thermocouple and the voltage reading from our dial input as historical tags. With Ignition’s sleek and powerful trending tools, these trends can be configured and displayed in minutes. ![DMCPart3_AnalogTrends](https://blog.opto22.com/hs-fs/hubfs/DMCPart3_AnalogTrends.png?width=316&height=428&name=DMCPart3_AnalogTrends.png) Thanks for reading this Getting Started series for Opto 22's *groov* EPIC! Now you’re ready to begin programming your own *groov* EPIC using CODESYS and Ignition Edge. For the complete overview of the *groov* EPIC and its features, be sure and check out the rest of this blog series: - [Part 1: *groov* EPIC Introduction](https://blog.opto22.com/optoblog/guest-blog-getting-started-with-groov-epic) - [Part 2: Ignition Edge](https://blog.opto22.com/optoblog/guest-blog-getting-started-with-groov-epic-and-ignition-edge) **-Natalie Pippolo** Project Engineer [DMC, Inc.](https://www.dmcinfo.com/) ![](https://blog.opto22.com/hs-fs/hubfs/DMCNatalie_guestblog.jpg?width=100&height=100&name=DMCNatalie_guestblog.jpg) Natalie is a graduate of Rice University with a B.S. in Mechanical Engineering along with a minor in Computational and Applied Mathematics. **Learn more about DMC’s experience with** [**Ignition HMI & SCADA programming**](https://www.dmcinfo.com/services/manufacturing-automation-and-intelligence/hmi-and-scada-programming/ignition-programming) **and** [**contact us today**](https://www.dmcinfo.com/contact#get-in-touch) **for your next project.**   Topics: [Ignition Edge](https://blog.opto22.com/optoblog/topic/ignition-edge), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [DMC guest blog](https://blog.opto22.com/optoblog/topic/dmc-guest-blog) ### Written by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) Janice has worked at Opto 22 for over 20 years and is part of the marketing team that strives to share new and relevant content with the industrial automation industry. 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