---
title: "New EPIC firmware 1.4: VPN Client, Network Diagnostics, and more"
description: Firmware update 1.4.0 is now available for the groov EPIC processor, GRV-EPIC-PR1, and expands networking capabilities.
image: https://blog.opto22.com/hubfs/openVPN.jpg
---

- [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)
    - [MQTT Resources](https://www.opto22.com/products/mqtt-resources)
    - [Cybersecurity](https://www.opto22.com/products/cybersecurity)
    - [Power and Energy Monitoring](https://www.opto22.com/products/power-and-energy-monitoring)
    - [How to Buy](https://www.opto22.com/products/how-to-buy)
    - [Hands-On Learning and Demo Units](https://www.opto22.com/products/hands-on-learning-and-demo-units)
    - [Product Comparisons and Compatibility](https://www.opto22.com/products/product-comparisons-and-compatibility)
    - [System Configurator](https://www.opto22.com/products/system-configurator)
- [Support](https://www.opto22.com/support) 
    - [Manage groov](https://www.opto22.com/logon?returnurl=%2fmy-opto%2fmanage-groov)
    - [Documents](https://www.opto22.com/Support/Resources-Tools?rt=59)
    - [Downloads](https://www.opto22.com/Support/Resources-Tools?rt=68)
    - [Videos](https://www.opto22.com/Support/Videos)
    - [KnowledgeBase](https://www.opto22.com/Support/Resources-Tools?rt=67)
    - [Training](https://www.opto22.com/support/training-options)
    - [Troubleshooting](https://www.opto22.com/support/troubleshooting)
    - [Image Library](https://www.opto22.com/support/resources-tools/image-library-svg-editors)
    - [Developers](https://developer.opto22.com/)
    - [Talk to an Engineer](https://www.opto22.com/support/talk-to-an-engineer)
    - [Contact Us](https://www.opto22.com/support/contact-us)
    - [Warranties](https://www.opto22.com/support/warranties)
    - [Agency Approvals/Compliance](https://www.opto22.com/support/agency-approvals)
    - [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)

- [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)
    - [MQTT Resources](https://www.opto22.com/products/mqtt-resources)
    - [Cybersecurity](https://www.opto22.com/products/cybersecurity)
    - [Power and Energy Monitoring](https://www.opto22.com/products/power-and-energy-monitoring)
    - [How to Buy](https://www.opto22.com/products/how-to-buy)
    - [Hands-On Learning and Demo Units](https://www.opto22.com/products/hands-on-learning-and-demo-units)
    - [Product Comparisons and Compatibility](https://www.opto22.com/products/product-comparisons-and-compatibility)
    - [System Configurator](https://www.opto22.com/products/system-configurator)
- [Support](https://www.opto22.com/support) 
    - [Manage groov](https://www.opto22.com/logon?returnurl=%2fmy-opto%2fmanage-groov)
    - [Documents](https://www.opto22.com/Support/Resources-Tools?rt=59)
    - [Downloads](https://www.opto22.com/Support/Resources-Tools?rt=68)
    - [Videos](https://www.opto22.com/Support/Videos)
    - [KnowledgeBase](https://www.opto22.com/Support/Resources-Tools?rt=67)
    - [Training](https://www.opto22.com/support/training-options)
    - [Troubleshooting](https://www.opto22.com/support/troubleshooting)
    - [Image Library](https://www.opto22.com/support/resources-tools/image-library-svg-editors)
    - [Developers](https://developer.opto22.com/)
    - [Talk to an Engineer](https://www.opto22.com/support/talk-to-an-engineer)
    - [Contact Us](https://www.opto22.com/support/contact-us)
    - [Warranties](https://www.opto22.com/support/warranties)
    - [Agency Approvals/Compliance](https://www.opto22.com/support/agency-approvals)
    - [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)

 

# New EPIC firmware 1.4: VPN Client, Network Diagnostics, and more

# OptoBlog

# New EPIC firmware 1.4: VPN Client, Network Diagnostics, and more

Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Aug 22, 2019, 9:05:00 AM

- [Tweet](https://twitter.com/share)

#### Firmware update 1.4.0 is now available for the *groov* EPIC processor, GRV-EPIC-PR1.

Our engineering team released an exciting new update for [*groov* EPIC](https://www.opto22.com/products/groov-epic-system) this week. Here are some of the highlights.

- [![OpenVPN technology now on groov EPIC](https://blog.opto22.com/hs-fs/hubfs/openVPN.jpg?width=300&name=openVPN.jpg)](https://openvpn.net/)For greater security in data communications, you can now connect the [GRV-EPIC-PR1](https://www.opto22.com/products/product-container/grv-epic-pr1) to a virtual private network (VPN). Configure your EPIC as a client to connect to an [OpenVPN](https://openvpn.net/) server.
- New options let you configure each network interface independently, for example for setting the order of priority for backup gateways and DNS provisioning.
- New networking features include diagnostic tools (ping, test tcp port, and more) to test internet connectivity in [*groov* Manage](https://www.opto22.com/products/groov-epic-system/groov-epic-software/groov-manage).
- For Ignition users, you can now choose Ignition or [Ignition Edge](https://www.opto22.com/products/groov-epic-system/groov-epic-software/ignition-edge) platforms. The Opto 22 Ignition Edge license ([GROOV-LIC-EDGE](https://www.opto22.com/products/product-container/groov-lic-edge)) works only with Ignition Edge. Contact [sales@opto22.com](mailto:sales@opto22.com) for more details.

[![groov EPIC system update 1.4.0](https://blog.opto22.com/hs-fs/hubfs/EPIC_ad_image_Sept2019_epic8-with-iphone_1000.jpg?width=250&name=EPIC_ad_image_Sept2019_epic8-with-iphone_1000.jpg)](https://www.opto22.com/logon?returnurl=%2fmy-opto%2fmanage-groov)

This latest version also adds [CODESYS](https://www.opto22.com/products/groov-epic-system/groov-epic-software/codesys-(iec-61131-3)) support for the *groov* serial module [GRV-CSERI-4](https://www.opto22.com/products/product-container/grv-cseri-4). And [Node-RED](https://www.opto22.com/products/groov-epic-system/groov-epic-software/node-red) has been upgraded to version 0.20.5. 

After you apply this update, you'll also see enhancements to *groov* Manage settings, auto-restoration of settings, and overall greater networking flexibility, as well as bug fixes for *groov* I/O, PAC Control Engine, and *groov* Manage. 

See the [*groov* EPIC Readme](https://www.opto22.com/support/resources-tools/documents/rm-groov-epic-processor-readme) for a complete list of new features and fixes included in Version 1.4.0.

Log in to your [MyOpto](https://www.opto22.com/logon?returnurl=%2fmy-opto%2fmanage-groov) account or visit [manage.groov.com](https://www.opto22.com/groov-management/manage-my-groov/groov-user-registration?utm_campaign=groov%20EPIC%20update%201.3&utm_source=hs_email&utm_medium=email&_hsenc=p2ANqtz-9HgoDhO49ril7pcoYAUjDBKliR7ki2otrrr9jmsGf70GxXbN8bqvtyfx93DyruXvwZmo2K) to download your **version 1.4.0** upgrade today! 

[![UPDATE GROOV EPIC](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/439485/5a065a52-d5c9-4aac-a0bf-104563283ce2.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/439485/5a065a52-d5c9-4aac-a0bf-104563283ce2)

\**Please note, an update was made to this release on 8/28/19. You can now download **version 1.4.1** through [manage.groov.com](https://www.opto22.com/logon?returnurl=%2fmy-opto%2fmanage-groov).*

 

 Topics: [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [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), [software](https://blog.opto22.com/optoblog/topic/software), [serial module](https://blog.opto22.com/optoblog/topic/serial-module), [OpenVPN](https://blog.opto22.com/optoblog/topic/openvpn)

### Written by [Janice Colmer](https://blog.opto22.com/optoblog/author/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. She enjoys books, camping, country music, and spending time with family and friends.

Find me on:

[LinkedIn](https://www.linkedin.com/in/jcolmer/)

### Subscribe to Email Updates

### Recent Posts

### Posts by Topic

- [groov EPIC (503)](https://blog.opto22.com/optoblog/topic/groov-epic)
- [groov RIO (300)](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)
- [Internet of Things (131)](https://blog.opto22.com/optoblog/topic/internet-of-things)
- [Ignition (130)](https://blog.opto22.com/optoblog/topic/ignition)
- [Node-RED (128)](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 (117)](https://blog.opto22.com/optoblog/topic/events-conferences)
- [Case studies (107)](https://blog.opto22.com/optoblog/topic/case-studies)
- [Industrial Internet of Things (104)](https://blog.opto22.com/optoblog/topic/industrial-internet-of-things)
- [Videos (96)](https://blog.opto22.com/optoblog/topic/videos)
- [Updates (82)](https://blog.opto22.com/optoblog/topic/updates)
- [Tips (81)](https://blog.opto22.com/optoblog/topic/tips)
- [Integrators (75)](https://blog.opto22.com/optoblog/topic/integrators)
- [OptoPartner (75)](https://blog.opto22.com/optoblog/topic/optopartner)
- [Remote monitoring (75)](https://blog.opto22.com/optoblog/topic/remote-monitoring)
- [Ignition Edge (73)](https://blog.opto22.com/optoblog/topic/ignition-edge)
- [I/O (69)](https://blog.opto22.com/optoblog/topic/io)
- [Process control (69)](https://blog.opto22.com/optoblog/topic/process-control)
- [Webinars (69)](https://blog.opto22.com/optoblog/topic/webinars)
- [Energy management (64)](https://blog.opto22.com/optoblog/topic/energy-management)
- [CODESYS (61)](https://blog.opto22.com/optoblog/topic/codesys)
- [Training (57)](https://blog.opto22.com/optoblog/topic/training)
- [PAC Control (51)](https://blog.opto22.com/optoblog/topic/pac-control)
- [PAC Project (49)](https://blog.opto22.com/optoblog/topic/pac-project)
- [groov View (49)](https://blog.opto22.com/optoblog/topic/groov-view)
- [OEM (48)](https://blog.opto22.com/optoblog/topic/oem)
- [cybersecurity (48)](https://blog.opto22.com/optoblog/topic/cybersecurity)
- [Discrete control (45)](https://blog.opto22.com/optoblog/topic/discrete-control)
- [digital transformation (45)](https://blog.opto22.com/optoblog/topic/digital-transformation)
- [Machine builder (40)](https://blog.opto22.com/optoblog/topic/machine-builder)
- [Firmware (39)](https://blog.opto22.com/optoblog/topic/firmware)
- [edge computing (39)](https://blog.opto22.com/optoblog/topic/edge-computing)
- [EPIC (37)](https://blog.opto22.com/optoblog/topic/epic)
- [system integrator (37)](https://blog.opto22.com/optoblog/topic/system-integrator)
- [Inductive Automation (35)](https://blog.opto22.com/optoblog/topic/inductive-automation)
- [groov Manage (33)](https://blog.opto22.com/optoblog/topic/groov-manage)
- [industrial automation (33)](https://blog.opto22.com/optoblog/topic/industrial-automation)
- [Data acquisition (30)](https://blog.opto22.com/optoblog/topic/data-acquisition)
- [Ignition Community Conference (30)](https://blog.opto22.com/optoblog/topic/ignition-community-conference)
- [Security (30)](https://blog.opto22.com/optoblog/topic/security)
- [Sparkplug (30)](https://blog.opto22.com/optoblog/topic/sparkplug)
- [Factory Training (29)](https://blog.opto22.com/optoblog/topic/factory-training)
- [Networking (28)](https://blog.opto22.com/optoblog/topic/networking)
- [snap pac (27)](https://blog.opto22.com/optoblog/topic/snap-pac)
- [REST API (26)](https://blog.opto22.com/optoblog/topic/rest-api)
- [New products (25)](https://blog.opto22.com/optoblog/topic/new-products)
- [Technology Partners (23)](https://blog.opto22.com/optoblog/topic/technology-partners)
- [Water & wastewater (22)](https://blog.opto22.com/optoblog/topic/water-amp-wastewater)
- [PLCs (21)](https://blog.opto22.com/optoblog/topic/plcs)
- [manufacturing (21)](https://blog.opto22.com/optoblog/topic/manufacturing)
- [API (20)](https://blog.opto22.com/optoblog/topic/api)
- [developer (20)](https://blog.opto22.com/optoblog/topic/developer)
- [groov EPIC Learning Center (20)](https://blog.opto22.com/optoblog/topic/groov-epic-learning-center)
- [Cirrus Link Solutions (19)](https://blog.opto22.com/optoblog/topic/cirrus-link-solutions)
- [OptoU (19)](https://blog.opto22.com/optoblog/topic/optou)
- [smart manufacturing (19)](https://blog.opto22.com/optoblog/topic/smart-manufacturing)
- [Electronics (18)](https://blog.opto22.com/optoblog/topic/electronics)
- [HMI (18)](https://blog.opto22.com/optoblog/topic/hmi)
- [OPC UA (18)](https://blog.opto22.com/optoblog/topic/opc-ua)
- [Oil & gas (18)](https://blog.opto22.com/optoblog/topic/oil-gas)
- [groov rio emu (18)](https://blog.opto22.com/optoblog/topic/groov-rio-emu)
- [Food & beverage (17)](https://blog.opto22.com/optoblog/topic/food-amp-beverage)
- [OptoPartner video (17)](https://blog.opto22.com/optoblog/topic/optopartner-video)
- [energy monitoring (17)](https://blog.opto22.com/optoblog/topic/energy-monitoring)
- [podcast (17)](https://blog.opto22.com/optoblog/topic/podcast)
- [Building management (16)](https://blog.opto22.com/optoblog/topic/building-management)
- [Awards and recognition (15)](https://blog.opto22.com/optoblog/topic/awards-and-recognition)
- [REST (15)](https://blog.opto22.com/optoblog/topic/rest)
- [SCADA (15)](https://blog.opto22.com/optoblog/topic/scada)
- [mobile (15)](https://blog.opto22.com/optoblog/topic/mobile)
- [Migration (14)](https://blog.opto22.com/optoblog/topic/migration)
- [OptoChannel (13)](https://blog.opto22.com/optoblog/topic/optochannel)
- [EPIC Security (12)](https://blog.opto22.com/optoblog/topic/epic-security)
- [Opto 22 product support (12)](https://blog.opto22.com/optoblog/topic/opto-22-product-support)
- [groov Manage series (12)](https://blog.opto22.com/optoblog/topic/groov-manage-series)
- [I/O modules (11)](https://blog.opto22.com/optoblog/topic/i-o-modules)
- [Modbus (11)](https://blog.opto22.com/optoblog/topic/modbus)
- [OptoForum (11)](https://blog.opto22.com/optoblog/topic/optoforum)
- [PAC Manager (11)](https://blog.opto22.com/optoblog/topic/pac-manager)
- [power monitoring (11)](https://blog.opto22.com/optoblog/topic/power-monitoring)
- [PAC Display (10)](https://blog.opto22.com/optoblog/topic/pac-display)
- [oil and gas (10)](https://blog.opto22.com/optoblog/topic/oil-and-gas)
- [Art of the Possible (9)](https://blog.opto22.com/optoblog/topic/art-of-the-possible)
- [Deepsea Challenge (9)](https://blog.opto22.com/optoblog/topic/deepsea-challenge)
- [IntegrateLive! (9)](https://blog.opto22.com/optoblog/topic/integratelive)
- [OT data (9)](https://blog.opto22.com/optoblog/topic/ot-data)
- [RESTful server (9)](https://blog.opto22.com/optoblog/topic/restful-server)
- [Raspberry Pi (9)](https://blog.opto22.com/optoblog/topic/raspberry-pi)
- [holiday schedule (9)](https://blog.opto22.com/optoblog/topic/holiday-schedule)
- [white paper (9)](https://blog.opto22.com/optoblog/topic/white-paper)
- [Automation World (8)](https://blog.opto22.com/optoblog/topic/automation-world)
- [Edge I/O (8)](https://blog.opto22.com/optoblog/topic/edge-i-o)
- [I/O (8)](https://blog.opto22.com/optoblog/topic/i-o)
- [PID loop control (8)](https://blog.opto22.com/optoblog/topic/pid-loop-control)
- [SSRs (8)](https://blog.opto22.com/optoblog/topic/ssrs)
- [Unified Namespace (8)](https://blog.opto22.com/optoblog/topic/unified-namespace)
- [data visualization (8)](https://blog.opto22.com/optoblog/topic/data-visualization)
- [holiday hours (8)](https://blog.opto22.com/optoblog/topic/holiday-hours)
- [webinar (8)](https://blog.opto22.com/optoblog/topic/webinar)
- [IEC 61131-3 (7)](https://blog.opto22.com/optoblog/topic/iec-61131-3)
- [MQTT implementation (7)](https://blog.opto22.com/optoblog/topic/mqtt-implementation)
- [Who's groovin (7)](https://blog.opto22.com/optoblog/topic/whos-groovin)
- [groov server for windows (7)](https://blog.opto22.com/optoblog/topic/groov-server-for-windows)
- [secure shell (7)](https://blog.opto22.com/optoblog/topic/secure-shell)
- [ARC Forum (6)](https://blog.opto22.com/optoblog/topic/arc-forum)
- [Careers (6)](https://blog.opto22.com/optoblog/topic/careers)
- [EPIC Security Series (6)](https://blog.opto22.com/optoblog/topic/epic-security-series)
- [Eclipse Foundation (6)](https://blog.opto22.com/optoblog/topic/eclipse-foundation)
- [Ignition Cloud Edition (6)](https://blog.opto22.com/optoblog/topic/ignition-cloud-edition)
- [Ignition Community Live (6)](https://blog.opto22.com/optoblog/topic/ignition-community-live)
- [Linux (6)](https://blog.opto22.com/optoblog/topic/linux)
- [data center (6)](https://blog.opto22.com/optoblog/topic/data-center)
- [interactive demo (6)](https://blog.opto22.com/optoblog/topic/interactive-demo)
- [machine monitoring (6)](https://blog.opto22.com/optoblog/topic/machine-monitoring)
- [open source (6)](https://blog.opto22.com/optoblog/topic/open-source)
- [ssh (6)](https://blog.opto22.com/optoblog/topic/ssh)
- [technical tips (6)](https://blog.opto22.com/optoblog/topic/technical-tips)
- [Anniversary (5)](https://blog.opto22.com/optoblog/topic/anniversary)
- [Digital I/O for Raspberry Pi (5)](https://blog.opto22.com/optoblog/topic/digital-i-o-for-raspberry-pi)
- [IIoT System Architecture (5)](https://blog.opto22.com/optoblog/topic/iiot-system-architecture)
- [OptoNews 2015-12-02 (5)](https://blog.opto22.com/optoblog/topic/optonews-2015-12-02)
- [OptoOPCServer (5)](https://blog.opto22.com/optoblog/topic/optoopcserver)
- [SVG (5)](https://blog.opto22.com/optoblog/topic/svg)
- [certificate (5)](https://blog.opto22.com/optoblog/topic/certificate)
- [cloud computing (5)](https://blog.opto22.com/optoblog/topic/cloud-computing)
- [product philosophy (5)](https://blog.opto22.com/optoblog/topic/product-philosophy)
- [software (5)](https://blog.opto22.com/optoblog/topic/software)
- [system integration (5)](https://blog.opto22.com/optoblog/topic/system-integration)
- [CODESYS blog series (4)](https://blog.opto22.com/optoblog/topic/codesys-blog-series)
- [COVID-19 Update (4)](https://blog.opto22.com/optoblog/topic/covid-19-update)
- [EdgeX (4)](https://blog.opto22.com/optoblog/topic/edgex)
- [HiveMQ (4)](https://blog.opto22.com/optoblog/topic/hivemq)
- [OpenVPN (4)](https://blog.opto22.com/optoblog/topic/openvpn)
- [OptoDataLink (4)](https://blog.opto22.com/optoblog/topic/optodatalink)
- [OptoNews 2015-03-04 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-03-04)
- [OptoNews 2015-03-18 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-03-18)
- [OptoNews 2015-04-01 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-04-01)
- [OptoNews 2015-04-15 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-04-15)
- [OptoNews 2015-04-29 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-04-29)
- [OptoNews 2015-05-21 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-05-21)
- [OptoNews 2015-06-03 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-06-03)
- [OptoNews 2015-06-17 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-06-17)
- [OptoNews 2015-07-01 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-07-01)
- [OptoNews 2015-07-15 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-07-15)
- [OptoNews 2015-07-29 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-07-29)
- [OptoNews 2015-08-12 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-08-12)
- [OptoNews 2015-08-26 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-08-26)
- [OptoNews 2015-09-09 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-09-09)
- [OptoNews 2015-09-23 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-09-23)
- [OptoNews 2015-10-07 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-10-07)
- [OptoNews 2015-10-21 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-10-21)
- [OptoNews 2015-11-04 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-11-04)
- [OptoNews 2015-11-18 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-11-18)
- [OptoNews 2015-12-16 (4)](https://blog.opto22.com/optoblog/topic/optonews-2015-12-16)
- [OptoNews 2016-01-06 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-01-06)
- [OptoNews 2016-01-20 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-01-20)
- [OptoNews 2016-02-03 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-02-03)
- [OptoNews 2016-02-17 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-02-17)
- [OptoNews 2016-03-02 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-03-02)
- [OptoNews 2016-03-16 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-03-16)
- [OptoNews 2016-03-30 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-03-30)
- [OptoNews 2016-04-13 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-04-13)
- [OptoNews 2016-04-27 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-04-27)
- [OptoNews 2016-05-11 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-05-11)
- [OptoNews 2016-05-25 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-05-25)
- [OptoNews 2016-06-08 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-06-08)
- [OptoNews 2016-06-22 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-06-22)
- [OptoNews 2016-07-06 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-07-06)
- [OptoNews 2016-08-03 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-08-03)
- [OptoNews 2016-08-31 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-08-31)
- [OptoNews 2016-09-14 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-09-14)
- [OptoNews 2016-09-28 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-09-28)
- [OptoNews 2016-10-12 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-10-12)
- [OptoNews 2016-10-26 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-10-26)
- [OptoNews 2016-11-09 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-11-09)
- [OptoNews 2016-11-30 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-11-30)
- [OptoNews 2016-12-14 (4)](https://blog.opto22.com/optoblog/topic/optonews-2016-12-14)
- [OptoNews 2017-01-04 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-01-04)
- [OptoNews 2017-01-18 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-01-18)
- [OptoNews 2017-02-01 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-02-01)
- [OptoNews 2017-02-15 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-02-15)
- [OptoNews 2017-03-01 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-03-01)
- [OptoNews 2017-03-15 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-03-15)
- [OptoNews 2017-03-29 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-03-29)
- [OptoNews 2017-04-12 (4)](https://blog.opto22.com/optoblog/topic/optonews-2017-04-12)
- [Optomux (4)](https://blog.opto22.com/optoblog/topic/optomux)
- [UNS (4)](https://blog.opto22.com/optoblog/topic/uns)
- [machine data (4)](https://blog.opto22.com/optoblog/topic/machine-data)
- [product design (4)](https://blog.opto22.com/optoblog/topic/product-design)
- [serial module (4)](https://blog.opto22.com/optoblog/topic/serial-module)
- [DMC guest blog (3)](https://blog.opto22.com/optoblog/topic/dmc-guest-blog)
- [Discovery Day (3)](https://blog.opto22.com/optoblog/topic/discovery-day)
- [G4 I/O (3)](https://blog.opto22.com/optoblog/topic/g4-i-o)
- [GIF (3)](https://blog.opto22.com/optoblog/topic/gif)
- [GPIO (3)](https://blog.opto22.com/optoblog/topic/gpio)
- [ICC (3)](https://blog.opto22.com/optoblog/topic/icc)
- [Insider (3)](https://blog.opto22.com/optoblog/topic/insider)
- [Made in USA (3)](https://blog.opto22.com/optoblog/topic/made-in-usa)
- [OEE (3)](https://blog.opto22.com/optoblog/topic/oee)
- [OptoMMP (3)](https://blog.opto22.com/optoblog/topic/optommp)
- [OptoNews 2016-08-17 (3)](https://blog.opto22.com/optoblog/topic/optonews-2016-08-17)
- [OptoTagPreserve (3)](https://blog.opto22.com/optoblog/topic/optotagpreserve)
- [YouTube (3)](https://blog.opto22.com/optoblog/topic/youtube)
- [control engineering (3)](https://blog.opto22.com/optoblog/topic/control-engineering)
- [groov RIO Learning Center (3)](https://blog.opto22.com/optoblog/topic/groov-rio-learning-center)
- [open source software (3)](https://blog.opto22.com/optoblog/topic/open-source-software)
- [python (3)](https://blog.opto22.com/optoblog/topic/python)
- [virtual workshop (3)](https://blog.opto22.com/optoblog/topic/virtual-workshop)
- [AI (2)](https://blog.opto22.com/optoblog/topic/ai)
- [Aggregates & concrete (2)](https://blog.opto22.com/optoblog/topic/aggregates-amp-concrete)
- [Build-a-Thon (2)](https://blog.opto22.com/optoblog/topic/build-a-thon)
- [Expert Interview series (2)](https://blog.opto22.com/optoblog/topic/expert-interview-series)
- [Firmware Engineer (2)](https://blog.opto22.com/optoblog/topic/firmware-engineer)
- [LDAP (2)](https://blog.opto22.com/optoblog/topic/ldap)
- [LoRaWAN (2)](https://blog.opto22.com/optoblog/topic/lorawan)
- [MES (2)](https://blog.opto22.com/optoblog/topic/mes)
- [MariaDB (2)](https://blog.opto22.com/optoblog/topic/mariadb)
- [Sepasoft (2)](https://blog.opto22.com/optoblog/topic/sepasoft)
- [Snowflake (2)](https://blog.opto22.com/optoblog/topic/snowflake)
- [Spanish (2)](https://blog.opto22.com/optoblog/topic/spanish)
- [Technical Writer (2)](https://blog.opto22.com/optoblog/topic/technical-writer)
- [Version 3.4 update (2)](https://blog.opto22.com/optoblog/topic/version-3-4-update)
- [Windows 10 (2)](https://blog.opto22.com/optoblog/topic/windows-10)
- [automation 101 (2)](https://blog.opto22.com/optoblog/topic/automation-101)
- [compliance (2)](https://blog.opto22.com/optoblog/topic/compliance)
- [email notifications (2)](https://blog.opto22.com/optoblog/topic/email-notifications)
- [firewall (2)](https://blog.opto22.com/optoblog/topic/firewall)
- [serial (2)](https://blog.opto22.com/optoblog/topic/serial)
- [21 CFR Part 11 (1)](https://blog.opto22.com/optoblog/topic/21-cfr-part-11)
- [Amazon Web Services (1)](https://blog.opto22.com/optoblog/topic/amazon-web-services)
- [Applications Engineer (1)](https://blog.opto22.com/optoblog/topic/applications-engineer)
- [Big data (1)](https://blog.opto22.com/optoblog/topic/big-data)
- [CNC (1)](https://blog.opto22.com/optoblog/topic/cnc)
- [Ciberseguridad (1)](https://blog.opto22.com/optoblog/topic/ciberseguridad)
- [Colombia (1)](https://blog.opto22.com/optoblog/topic/colombia)
- [Corso Systems (1)](https://blog.opto22.com/optoblog/topic/corso-systems)
- [Discover Gallery (1)](https://blog.opto22.com/optoblog/topic/discover-gallery)
- [ENTELEC (1)](https://blog.opto22.com/optoblog/topic/entelec)
- [EaaS (1)](https://blog.opto22.com/optoblog/topic/eaas)
- [Education Partnerships (1)](https://blog.opto22.com/optoblog/topic/education-partnerships)
- [Grafana (1)](https://blog.opto22.com/optoblog/topic/grafana)
- [HART (1)](https://blog.opto22.com/optoblog/topic/hart)
- [HVAC (1)](https://blog.opto22.com/optoblog/topic/hvac)
- [HighByte (1)](https://blog.opto22.com/optoblog/topic/highbyte)
- [Industrial Ethernet Book (1)](https://blog.opto22.com/optoblog/topic/industrial-ethernet-book)
- [LinkedIn (1)](https://blog.opto22.com/optoblog/topic/linkedin)
- [Log4Shell (1)](https://blog.opto22.com/optoblog/topic/log4shell)
- [Log4j (1)](https://blog.opto22.com/optoblog/topic/log4j)
- [Lucidchart (1)](https://blog.opto22.com/optoblog/topic/lucidchart)
- [M-Bus (1)](https://blog.opto22.com/optoblog/topic/m-bus)
- [Modern Elteknik (1)](https://blog.opto22.com/optoblog/topic/modern-elteknik)
- [MySQL (1)](https://blog.opto22.com/optoblog/topic/mysql)
- [Opto 22 (1)](https://blog.opto22.com/optoblog/topic/opto-22)
- [OptoChat (1)](https://blog.opto22.com/optoblog/topic/optochat)
- [OptoNews 2016-07-20 (1)](https://blog.opto22.com/optoblog/topic/optonews-2016-07-20)
- [PLC programming (1)](https://blog.opto22.com/optoblog/topic/plc-programming)
- [Pamux (1)](https://blog.opto22.com/optoblog/topic/pamux)
- [PostgreSQL (1)](https://blog.opto22.com/optoblog/topic/postgresql)
- [RS232 (1)](https://blog.opto22.com/optoblog/topic/rs232)
- [RTD (1)](https://blog.opto22.com/optoblog/topic/rtd)
- [SPS (1)](https://blog.opto22.com/optoblog/topic/sps)
- [SoftPAC (1)](https://blog.opto22.com/optoblog/topic/softpac)
- [Sweden (1)](https://blog.opto22.com/optoblog/topic/sweden)
- [Tatsoft (1)](https://blog.opto22.com/optoblog/topic/tatsoft)
- [User Accounts (1)](https://blog.opto22.com/optoblog/topic/user-accounts)
- [Veteran's Day (1)](https://blog.opto22.com/optoblog/topic/veterans-day)
- [Virtual Tour (1)](https://blog.opto22.com/optoblog/topic/virtual-tour)
- [analisisydatos (1)](https://blog.opto22.com/optoblog/topic/analisisydatos)
- [analog input module (1)](https://blog.opto22.com/optoblog/topic/analog-input-module)
- [automatizacion (1)](https://blog.opto22.com/optoblog/topic/automatizacion)
- [blockchain (1)](https://blog.opto22.com/optoblog/topic/blockchain)
- [current transformers (1)](https://blog.opto22.com/optoblog/topic/current-transformers)
- [customer service (1)](https://blog.opto22.com/optoblog/topic/customer-service)
- [encryption (1)](https://blog.opto22.com/optoblog/topic/encryption)
- [groov Admin (1)](https://blog.opto22.com/optoblog/topic/groov-admin)
- [groov System Configurator (1)](https://blog.opto22.com/optoblog/topic/groov-system-configurator)
- [groov maintenance license (1)](https://blog.opto22.com/optoblog/topic/groov-maintenance-license)
- [indoor agriculture (1)](https://blog.opto22.com/optoblog/topic/indoor-agriculture)
- [instrumentacion (1)](https://blog.opto22.com/optoblog/topic/instrumentacion)
- [inteligenciaindustrial (1)](https://blog.opto22.com/optoblog/topic/inteligenciaindustrial)
- [json (1)](https://blog.opto22.com/optoblog/topic/json)
- [machine learning (1)](https://blog.opto22.com/optoblog/topic/machine-learning)
- [maintenance technician (1)](https://blog.opto22.com/optoblog/topic/maintenance-technician)
- [mining (1)](https://blog.opto22.com/optoblog/topic/mining)
- [network segmentation (1)](https://blog.opto22.com/optoblog/topic/network-segmentation)
- [port redirect (1)](https://blog.opto22.com/optoblog/topic/port-redirect)
- [predictive maintenance (1)](https://blog.opto22.com/optoblog/topic/predictive-maintenance)
- [redundancy (1)](https://blog.opto22.com/optoblog/topic/redundancy)
- [reverse osmosis (1)](https://blog.opto22.com/optoblog/topic/reverse-osmosis)
- [sdk (1)](https://blog.opto22.com/optoblog/topic/sdk)
- [supply chain (1)](https://blog.opto22.com/optoblog/topic/supply-chain)
- [temperature sensor (1)](https://blog.opto22.com/optoblog/topic/temperature-sensor)
- [time proportional output (1)](https://blog.opto22.com/optoblog/topic/time-proportional-output)
- [visio stencils (1)](https://blog.opto22.com/optoblog/topic/visio-stencils)
- [wellsite automation (1)](https://blog.opto22.com/optoblog/topic/wellsite-automation)

see all

- [Products](https://www.opto22.com/products) 
    - [Product Selector](https://www.opto22.com/products/product-selector)
    - [groov System](https://www.opto22.com/products/groov)
    - [I/O](https://www.opto22.com/products/i-o)
    - [Logic](https://www.opto22.com/products/logic)
    - [Data](https://www.opto22.com/products/data)
    - [Visualization](https://www.opto22.com/products/visualization)
    - [Accessories](https://www.opto22.com/products/accessories)
    - [Product Families](https://www.opto22.com/products/product-families)
    - [How to Buy](https://www.opto22.com/products/how-to-buy)
    - [Product Comparisons and Compatibility](https://www.opto22.com/products/product-comparisons-and-compatibility)
    - [SNAP I/O Configurator](https://www.opto22.com/products/snap-i-o-configurator)

- [Support](https://www.opto22.com/support) 
    - [Contact Support](https://www.opto22.com/support/contact-us)
    - [Warranties](https://www.opto22.com/support/warranties)
    - [Troubleshooting](https://www.opto22.com/support/troubleshooting)
    - [Documents](https://www.opto22.com/support/documents-redirect)
    - [Downloads](https://www.opto22.com/support/downloads-redirect)
    - [Videos](https://www.opto22.com/support/videos-redirect)
    - [KnowledgeBase](https://www.opto22.com/support/optoknowledgebase-redirect)
    - [Training](https://www.opto22.com/support/training-options)

- [About Us](https://www.opto22.com/about-us) 
    - [Distributors](https://www.opto22.com/about-us/distributors)
    - [Pressroom](https://www.opto22.com/about-us/pressroom)
    - [Careers](https://www.opto22.com/about-us/careers)
    - [History](https://www.opto22.com/about-us/history)
    - [Corporate Contacts](https://www.opto22.com/about-us/corporate-contacts)
    - [Sustainability](https://www.opto22.com/about-us/sustainability)
    - [International](https://www.opto22.com/about-us/international)
    - [Location](https://www.opto22.com/about-us/directions)

- [Community](https://www.opto22.com/community) 
    - [Opto Partners](https://www.opto22.com/community/opto-partners)
    - [Opto Blog](https://www.opto22.com/community/opto-blog)
    - [Opto Forums](https://www.opto22.com/community/opto-forums)
    - [Events](https://www.opto22.com/community/events)

- [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)
    - [MQTT Resources](https://www.opto22.com/products/mqtt-resources)
    - [Cybersecurity](https://www.opto22.com/products/cybersecurity)
    - [Power and Energy Monitoring](https://www.opto22.com/products/power-and-energy-monitoring)
    - [How to Buy](https://www.opto22.com/products/how-to-buy)
    - [Hands-On Learning and Demo Units](https://www.opto22.com/products/hands-on-learning-and-demo-units)
    - [Product Comparisons and Compatibility](https://www.opto22.com/products/product-comparisons-and-compatibility)
    - [System Configurator](https://www.opto22.com/products/system-configurator)
- [Support](https://www.opto22.com/support) 
    - [Manage groov](https://www.opto22.com/logon?returnurl=%2fmy-opto%2fmanage-groov)
    - [Documents](https://www.opto22.com/Support/Resources-Tools?rt=59)
    - [Downloads](https://www.opto22.com/Support/Resources-Tools?rt=68)
    - [Videos](https://www.opto22.com/Support/Videos)
    - [KnowledgeBase](https://www.opto22.com/Support/Resources-Tools?rt=67)
    - [Training](https://www.opto22.com/support/training-options)
    - [Troubleshooting](https://www.opto22.com/support/troubleshooting)
    - [Image Library](https://www.opto22.com/support/resources-tools/image-library-svg-editors)
    - [Developers](https://developer.opto22.com/)
    - [Talk to an Engineer](https://www.opto22.com/support/talk-to-an-engineer)
    - [Contact Us](https://www.opto22.com/support/contact-us)
    - [Warranties](https://www.opto22.com/support/warranties)
    - [Agency Approvals/Compliance](https://www.opto22.com/support/agency-approvals)
    - [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)

© 2026 Opto22 [Terms and Conditions](https://preview.opto22.com/special-pages/terms-conditions) | [Privacy](https://preview.opto22.com/special-pages/privacy)

**(800) 321 OPTO (6786)** | 43044 Business Park Drive, Temecula CA 92590 USA

<http://www.linkedin.com/groups?gid=734807&trk=hb_side_g> <http://www.youtube.com/optovideo> <http://www.facebook.com/home.php#!/opto22> <http://twitter.com/opto22>

![](https://dc.ads.linkedin.com/collect/?pid=90128&fmt=gif)