Blog
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OPC UA Security: How to Establish a Defensible OPC UA Security Architecture
Turn every OPC UA attack vector into a configuration decision you control: Reverse Connect to keep the firewall closed, enforced trust lists, SignAndEncrypt, GDS certificate management, RBAC, and the field anti-patterns that quietly undo all of it.
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OPC UA Security: How Threat Actors Exploit Industrial Protocol Vulnerabilities
Threat actors don't break OPC UA's cryptography. They walk through the security it left switched off. The attacks that work... -
Why OPC UA Is Not Replacing Modbus (Yet)
OPC UA has every technical advantage. Modbus is still winning. Here's why the replacement hasn't happened and what would actually... -
Agentic AI Reads OPC UA Servers So You Don't Have To
OPC UA servers store everything. Finding anything takes hours. -
MQTT vs OPC UA: Why This Question Never Has a Straight Answer
The question itself is broken. MQTT moves messages. OPC UA defines meaning. They operate at different layers of the stack. Comparing... -
Beyond Kepware: Why Modern Industrial Connectivity Demands a Second Look
Kepware isn't chosen, it's assumed. It appears in budgets like line items for electricity or insurance. No one questions it.... -
OPC UA Tutorial: Advanced Monitoring with Subscriptions, Alarms, and Historical Data
In our previous tutorial, we covered OPC UA basics—connecting to servers, reading tags, and writing values. Now it's time for... -
OPC UA Tutorial: Connect and Exchange Data with Industrial Equipment
If you’ve ever tried to connect industrial equipment from different vendors, you know how frustrating it can be, a mess... -
Node-RED Serial Port Tutorial: Connect RS232/RS485 Manufacturing Equipment (2026)
Many factories rely on machines, both new and old, that communicate via traditional serial interfaces such as RS-232, RS-422, or... -
Bridging OPC UA Data to MQTT with Node-RED (2026)
Have you ever found yourself trying to connect old industrial systems with new IoT tools? This is a common scenario... -
Connect Node-RED to KepserverEX OPC server.
KepserverEX, often referred to as Kepware, is an OPC server that has been the important tool many manufacturing companies have... -
How to Build an OPC UA Client Dashboard in Node-RED - Part 3 (2026)
This article is the third and final part of our OPC UA content series. In the first article, we cover... -
How to Deploy a Basic OPC-UA Server in Node-RED - Part 1 (2026)
This article is the first part of a series of OPC-UA content. Here, we will explain some basic concepts...
