--- title: Four-port serial module now available for the groov EPIC system description: GRV-CSERI-4 serial modules expand the groov EPIC system capabilities to add communication with RS-232 and RS-485 serial devices. image: https://blog.opto22.com/hubfs/GRV-CSERI-4_LidCloseOpen_800%20(1).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) - [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)   # Four-port serial module now available for the groov EPIC system # OptoBlog # Four-port serial module now available for the groov EPIC system Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Oct 8, 2018, 12:55:18 PM - [Tweet](https://twitter.com/share) [![GRV-CSERI-4](https://blog.opto22.com/hs-fs/hubfs/GRV-CSERI-4_LidCloseOpen_800%20(1).png?width=300&name=GRV-CSERI-4_LidCloseOpen_800%20(1).png)](https://www.opto22.com/products/product-container/grv-cseri-4)Opto 22 has just announced the release of the *groov* serial I/O module, [**GRV-CSERI-4**](https://www.opto22.com/products/product-container/grv-cseri-4). This module plugs into a[*groov* EPIC](https://info.opto22.com/this-is-epic-introducing-groov-epic) chassis alongside *groov* EPIC analog and discrete I/O modules, allowing you the mix of signals you need at any location. Many industrial automation applications require communication between the controller and multiple serial devices. This new module provides four independent and isolated serial ports for this purpose, communicating with RS-232 or RS-485 serial devices. Up to 4 GRV-CSERI-4 modules can be installed on any *groov *EPIC chassis, providing a total of 16 serial ports per system to support these communication requirements. For serial devices communicating via standard protocols, the included PAC Control flowchart-based programming software offers communication handles to serial devices. For serial devices requiring the development of custom drivers, *groov* EPIC supports secure shell access, SDKs, and a cross-compiler for custom user-written applications. The GRV-CSERI-4 I/O modules are also hot swappable—which means they can be installed or removed without turning off the unit or stopping control—and self-identifying; as soon as you mount the module on the chassis, it communicates to the processor and identifies itself. To learn more about the new serial module, [download the data sheet](https://www.opto22.com/support/resources-tools/documents/2296-groov-serial-modules-data-sheet)or read the complete [press release](https://www.opto22.com/support/resources-tools/documents/2299-press-release-groov-epic-serial-module). [![GET THE DATA SHEET](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/439485/038f90e2-7a54-44b9-827e-e042e867f659.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/439485/038f90e2-7a54-44b9-827e-e042e867f659)     Topics: [groov](https://blog.opto22.com/optoblog/topic/groov), [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [EPIC](https://blog.opto22.com/optoblog/topic/epic), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [serial](https://blog.opto22.com/optoblog/topic/serial) ### 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. 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 (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) - [groov (192)](https://blog.opto22.com/optoblog/topic/groov) - [IoT (148)](https://blog.opto22.com/optoblog/topic/iot) - [Ignition (131)](https://blog.opto22.com/optoblog/topic/ignition) - [Internet of Things (131)](https://blog.opto22.com/optoblog/topic/internet-of-things) - [Node-RED (129)](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 (110)](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) - [OptoPartner (76)](https://blog.opto22.com/optoblog/topic/optopartner) - [Integrators (75)](https://blog.opto22.com/optoblog/topic/integrators) - [Remote monitoring (75)](https://blog.opto22.com/optoblog/topic/remote-monitoring) - [Ignition Edge (74)](https://blog.opto22.com/optoblog/topic/ignition-edge) - [Webinars (70)](https://blog.opto22.com/optoblog/topic/webinars) - [I/O (69)](https://blog.opto22.com/optoblog/topic/io) - [Process control (69)](https://blog.opto22.com/optoblog/topic/process-control) - [Energy management (64)](https://blog.opto22.com/optoblog/topic/energy-management) - [CODESYS (62)](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) - [digital transformation (46)](https://blog.opto22.com/optoblog/topic/digital-transformation) - [Discrete control (45)](https://blog.opto22.com/optoblog/topic/discrete-control) - [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) - [industrial automation (34)](https://blog.opto22.com/optoblog/topic/industrial-automation) - [groov Manage (33)](https://blog.opto22.com/optoblog/topic/groov-manage) - [Data acquisition (31)](https://blog.opto22.com/optoblog/topic/data-acquisition) - [Ignition Community Conference (31)](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 (28)](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 (24)](https://blog.opto22.com/optoblog/topic/technology-partners) - [Water & wastewater (23)](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) - [Cirrus Link Solutions (20)](https://blog.opto22.com/optoblog/topic/cirrus-link-solutions) - [developer (20)](https://blog.opto22.com/optoblog/topic/developer) - [groov EPIC Learning Center (20)](https://blog.opto22.com/optoblog/topic/groov-epic-learning-center) - [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) - [PID loop control (9)](https://blog.opto22.com/optoblog/topic/pid-loop-control) - [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) - [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) - [Ignition Cloud Edition (7)](https://blog.opto22.com/optoblog/topic/ignition-cloud-edition) - [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) - [technical tips (7)](https://blog.opto22.com/optoblog/topic/technical-tips) - [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 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) - [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) - [aerospace (1)](https://blog.opto22.com/optoblog/topic/aerospace) - [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 ![](https://dc.ads.linkedin.com/collect/?pid=90128&fmt=gif)