--- title: "OptoNews Tip: Choosing an SSR for your application" description: Heating, motors, and lots more. Get advice on selecting and using SSRs. image: https://blog.opto22.com/hubfs/social-suggested-images/ssrs_pg_main_photo_320x224.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)   # OptoNews Tip: Choosing an SSR for your application # OptoBlog # OptoNews Tip: Choosing an SSR for your application Posted by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) on May 15, 2017, 12:27:13 PM - [Tweet](https://twitter.com/share) Over 40 years ago, Opto 22 started manufacturing solid state relays (SSRs). With the wide variety we've built over the years, we probably have the [SSR you need](https://info.opto22.com/opto-22-ssrs) in stock right now.  We also have some **advice on choosing and running SSRs** in specific applications. ## Heating control For example, a customer recently asked about SSRs for heating control.  If you're driving a heater load that cycles on and off continuously, as in a temperature control application, you're probably aware that constant cycling can cause thermal fatigue. We use a thick copper lead frame to mount thyristor chips in our [power series SSRs](https://www.opto22.com/products/product-selector?keyword=&c1=&c2=&tag=1567,1337,1571,1476); the frame guards against thermal fatigue. For complete reliability, we also recommend operating SSRs that cycle heater loads at 75% rated current. In the [SSR Data Sheet](http://www.opto22.com/site/documents/doc_drilldown.aspx?aid=1677) (see page 19), you'll find the following table to guide you in selecting the proper SSR for your heater load. You'll also want to see where resistors are needed to avoid damage to the SSR, so check out the resistor calculation and diagram.  | **Maximum Heater Current** | **SSR Current Rating** | | --- | --- | | 1.5 A | 2 A | | 2.5 A | 4 A | | 7.5 A | 10 A | | 18 A | 25 A | | 35 A | 45 A | | 8 A | 10 480V | ## ![Old-fashioned motor illustration](https://blog.opto22.com/hs-fs/hubfs/engine-2027308_640.png?width=224&name=engine-2027308_640.png "Old-fashioned motor illustration")Motor control For **single-phase reversing** motor control, the phase shift capacitor can cause twice-line voltage to appear across the open SSR. That means for a 120 volt line, you'll need to choose a 240 volt SSR. See the [SSR Data Sheet](http://www.opto22.com/site/documents/doc_drilldown.aspx?aid=1677) for a diagram.  For **3-phase** motor control, see the wiring diagram in the [SSR Data S](http://www.opto22.com/site/documents/doc_drilldown.aspx?aid=1677)[heet](http://www.opto22.com/site/documents/doc_drilldown.aspx?aid=1677). Check the surge current drawn by the motor and make sure the SSR's surge current rating is sufficient. Here's a general guideline for choosing compatible SSRs based on the horsepower of your motor: | **240 Volt 3-Phase Motor** | | | --- | --- | | **Motor HP** | **SSR Model** | | 3/4 HP | Z240D10 | | 3/4 HP | 240D10 | | 3/4 HP | 240A10 | | 2 HP | 240D25 | | 2 HP | 240A25 | | 3 HP | 240D45 | | 1-1/2 HP | 480D10-12 | | 1-1/2 HP | 480D15-12 | For **3-phase reversing** motor control, again, check the [SSR Data Sheet](http://www.opto22.com/site/documents/doc_drilldown.aspx?aid=1677)'s diagram for SSR and resistor placement. Here's a general guide for SSR and resistor selection: | **Motor Rating, Full Load** | **Opto 22 SSR Rating** | **Resistor for 120 V Line** | **Resistor for 240 V Line** | | --- | --- | --- | --- | | 1.25 A | 3 A | 4 ohm 50 W | 8 ohm 50 W | | 5 A | 10 A | 1 ohm 100 W | 2 ohm 100 W | | 8 A | 25 A | 0.5 ohm 100 W | 1 ohm 100 W | | 16 A | 45 A | 0.25 ohm 150 W | 0.5 ohm 150 W | | 5 A | 15 A | 1 ohm 100 W | 2 ohm 100 W | ## More information on choosing and using SSRs This is just a taste of the detailed information in the [SSR Data Sheet](http://www.opto22.com/site/documents/doc_drilldown.aspx?aid=1677) on selecting SSRs and using them in specific applications. You'll find SSRs for mounting on circuit boards, a wide variety of AC and DC-switching power SSRs, and even SSRs with an integral heatsink for easier installation.  The data sheet also answers questions and helps you troubleshoot problems. Skim through it and make sure you see the sections that apply to your application. Remember that "Optrol" SSR in the photo above? It was one of our original models. More than 10 years ago, that SSR was found in a machine that was being replaced. It still worked fine after 30 years of service. So when you need an SSR for your application, you can count on ours.  And as always, [contact our pre-sales engineers](https://www.opto22.com/support/contact-us) if you have any questions about which products to choose.  [![Get the SSR Data Sheet](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/439485/743388eb-384a-49f5-a579-7e30f2ba98d4.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/439485/743388eb-384a-49f5-a579-7e30f2ba98d4) Topics: [Tips](https://blog.opto22.com/optoblog/topic/tips), [SSRs](https://blog.opto22.com/optoblog/topic/ssrs) ### Written by [Jean Femia](https://blog.opto22.com/optoblog/author/jean-femia) Jean Femia writes about technical subjects and has focused on automation and control systems for more than 15 years. She likes learning about technology and taking corners in her Honda S2000. Find me on: [LinkedIn](https://www.linkedin.com/in/jeanfemia) ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic - [groov EPIC (507)](https://blog.opto22.com/optoblog/topic/groov-epic) - [groov RIO (302)](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 (58)](https://blog.opto22.com/optoblog/topic/training) - [PAC Control (52)](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) - [Firmware (40)](https://blog.opto22.com/optoblog/topic/firmware) - [Machine builder (40)](https://blog.opto22.com/optoblog/topic/machine-builder) - [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) - [Factory Training (30)](https://blog.opto22.com/optoblog/topic/factory-training) - [Security (30)](https://blog.opto22.com/optoblog/topic/security) - [Sparkplug (30)](https://blog.opto22.com/optoblog/topic/sparkplug) - [snap pac (29)](https://blog.opto22.com/optoblog/topic/snap-pac) - [Networking (28)](https://blog.opto22.com/optoblog/topic/networking) - [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) - [SoftPAC (2)](https://blog.opto22.com/optoblog/topic/softpac) - [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) - [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