In early 2026, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) published advisory ICSA-26-050-03, highlighting severe vulnerabilities in legacy industrial cellular and Wi-Fi routers. This news is a punch in the gut for operational technology (OT) engineers: The use of legacy cryptographic standards and broken authentication logic in industrial edge devices puts the entire factory…
The foundation of global food security and sustainable resource management relies entirely on effective AgIoT IT/OT integration. By the year 2050, global agricultural production must expand by an estimated 60% to sustain a population cresting 9.3 billion. Simultaneously, agriculture already monopolizes over 70% of global freshwater withdrawals, according to the Food and Agriculture Organization of…
Connecting a remote manufacturing site, municipal water lift station, or utility substation to your centralized SCADA system is usually straightforward—until you run out of IP addresses or realize you are exposing critical infrastructure to the open web. If you’ve been trying to establish secure remote plc access for multiple controllers without waking up your corporate…
When a primary wired link fails, relying on standard link-state detection often results in a critical SCADA dropping connection WAN failure. Because basic routers take minutes to detect logical internet outages, your remote telemetry times out and drops active TCP sockets. The only real solution to get rid of these massive delays is to deploy…
Connecting a remote site to your centralized SCADA system is usually straightforward—until you run out of IP addresses. If you are trying to establish multiple PLCs single public IP remote access, you have likely hit a frustrating roadblock. You have a pump station with 3 different ethernet PLCs, 2 HMIs and an IP camera. But…
Need to fix a broadcast storm in an industrial network? If you’ve ever wondered, “what is the outcome of a layer 2 broadcast storm,” the signs on the factory floor are impossible to miss: Your SCADA screen is hanging on and off, Modbus TCP connections are being dropped at random and your industrial cellular router’s…
If your facility is experiencing AGV WiFi roaming disconnects, implementing an 802.11r fast transition network architecture is the direct technical fix. Standard enterprise WiFi relies on a “break-before-make” handover, requiring the wireless client to sever its current connection and execute a full 4-way cryptographic handshake with the next Access Point (AP). This negotiation takes between…
If you are the person who has to build up an industrial network, you have probably been in this exact situation: Your serial device server works perfectly when connected to one local HMI. The polling is fresh, and the data is sound. But as soon as you connect a second SCADA system from the central…
In industrial automation, few things are as notoriously difficult to troubleshoot as an unstable RS485 network. When a Modbus RTU system works perfectly on a schematic but drops packets, experiences “ghost timeouts,” or completely collapses on the factory floor, the root cause rarely lies in the software—it is almost always a physical layer breakdown. When…
Engineer’s Note: When migrating from legacy industry standards such as the Moxa NPort series, the topology should be carefully planned. This evaluation is written for system integrators and automation engineers tasked with deploying reliable, low-latency SCADA (Modbus/MQTT) systems in modern IT/OT converged environments. Moxa’s NPort 5110 and 5150 have been the default baseline standard for…
