[{"data":1,"prerenderedAt":113},["ShallowReactive",2],{"blog-post-en-opc-ua-umati-blueprint":3},{"id":4,"title":5,"author":6,"body":7,"date":97,"description":98,"extension":99,"image":100,"imageAlt":101,"linkedinUrl":102,"meta":103,"navigation":104,"path":105,"seo":106,"sitemap":107,"stem":108,"tags":109,"__hash__":112},"content_en\u002Fblog\u002Fopc-ua-umati-blueprint.md","4\u002F5 OPC UA: Treat UMATI as a Blueprint, Not a Law.","Oliver Herzig",{"type":8,"value":9,"toc":93},"minimark",[10,19,26,33,40,47,54,61,73,83,90],[11,12,13,14,17],"p",{},"OPC UA solves how data is sent. But it doesn't solve what that data looks like. That's where most integration projects quietly lose time and money.",[15,16],"br",{},[15,18],{},[11,20,21,22,24],{},"This is where the companion specification OPC 40501 comes in, often promoted under the name UMATI. It provides a shared vocabulary and a proven information model for machine tools.",[15,23],{},[15,25],{},[11,27,28,29,31],{},"But standards are only powerful if you can pin them to a version, test against them, and enforce them in procurement. Otherwise, they create confusion.",[15,30],{},[15,32],{},[11,34,35,36,38],{},"OPC 40501 gives you a shared vocabulary and a proven information model for machine tools. That is valuable. But \"umati-compatible\" is not a specification you can hold a vendor to. Versions evolve and differ between implementations.",[15,37],{},[15,39],{},[11,41,42,43,45],{},"So how do you get the value without the ambiguity?",[15,44],{},[15,46],{},[11,48,49,50,52],{},"💡 The answer: Build a Minimum Viable Interface (MVI).",[15,51],{},[15,53],{},[11,55,56,57,59],{},"An MVI is a data contract: the specific data points your MES, OEE, or maintenance system actually needs, structured using OPC 40501 naming conventions. It's testable and it's enforceable.",[15,58],{},[15,60],{},[11,62,63,64,68,69,71],{},"🔺 ",[65,66,67],"strong",{},"For the Machine Tool Builder:"," Use OPC 40501 as your design reference. Adopt its naming conventions and node structures where they fit your machine's reality. Extend with vendor-specific nodes in your own namespace where necessary. Pick a spec version, commit to it, and document it. When new versions come, add support alongside. Don't replace. Integration needs a stable interface.",[15,70],{},[15,72],{},[11,74,63,75,78,79,81],{},[65,76,77],{},"For the Machine User and Integrator:"," Stop writing \"umati-compatible\" into procurement specs. Instead, define your MVI: a list of required data points, structured with OPC 40501 conventions. Require vendors to map their interface to your MVI and include a validation test at machine acceptance. Then standardize that MVI across your entire fleet, regardless of vendor. That is where the real integration savings come from.",[15,80],{},[15,82],{},[11,84,85,86,88],{},"🚩 The standard is not the contract. Your MVI is the contract. The standard is what makes that contract scalable.",[15,87],{},[15,89],{},[11,91,92],{},"🚀 Next week in Post 5\u002F5: OPC UA vs. MQTT, MTConnect & others: How they compare, and where each fits.",{"title":94,"searchDepth":95,"depth":95,"links":96},"",2,[],"2026-02-15","OPC UA companion specification OPC 40501 (UMATI) provides a shared vocabulary for machine tools, but real integration requires a Minimum Viable Interface.","md","https:\u002F\u002Falpinaconnect.b-cdn.net\u002Fprod\u002Fen\u002Fopc-ua-and-umati.png","OPC UA and UMATI blueprint",null,{},true,"\u002Fblog\u002Fopc-ua-umati-blueprint",{"title":5,"description":98},{"loc":105},"blog\u002Fopc-ua-umati-blueprint",[110,111],"OPC-UA","Connectivity","UZofIUD11DAPPMlCLYSjV8uXdtG4AjWOM8XXIMVWVbc",1773601802734]