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…
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…
⚡ Remote HMI Setup at a Glance Technical Requirement Solution Target Device Siemens Smart 700 IE (or any Ethernet/Serial HMI) Required Hardware Industrial Serial-to-WiFi Converter (with N2N support) Network Config Zero Port Forwarding, No Static IP needed Security AES-128 Encrypted N2N Tunnel The Problem with Remote HMI Programming The Siemens Smart 700 IE is a…
In our experience across hundreds of factory retrofits, more than 65% of industrial equipment still uses RS232 or RS485. But in retrofit projects, up to 60% of the time, structural problems make it impossible to run new cable. Your factory has a PLC on the floor, a power meter hidden away in an electrical room,…
Modbus RTU to Modbus TCP Gateway Setup Guide You’ve wired the RS485 terminals, set the IP address, and successfully pinged the device. Yet, your SCADA screen is still flashing a “Connection Timeout” error. A Modbus RTU to TCP gateway is not a cable that you plug in and it works—it’s an active protocol translator. Bridging…
Bridging legacy operational technology (OT) with modern IT networks is rarely straightforward. Whether you are dealing with unexplained Modbus polling timeouts, ground loop interference on the factory floor, or struggling to make legacy supervisory software recognize an IP address, choosing the wrong serial-to-Ethernet converter will guarantee system downtime. There is no universal “plug-and-play” device. The…
One of the biggest challenges facing industrial automation engineers is the integration of legacy serial systems with modern network infrastructure. You have reliable RS232 machinery (PLCs, CNCs, scales) that can’t talk to your modern cloud dashboards. This comprehensive guide will bridge that gap. You will learn how to overcome the RS232 15 meter distance limitation…
The Reality: 30% of Industrial Retrofits Face a Cable Problem According to Astute Analytica , the global serial device server market was valued at $323 million in 2024 and is projected to reach $476 million by 2033, growing at 4.75% annually . Industry data shows that over 65% of industrial equipment still relies on RS232 or RS485 , and in retrofit projects, up…
RS485 can handle up to 32 devices on a single pair of wires—If you do the wiring correctly everything will work properly.. If you get it wrong you will waste a lot of time trying to find and fix problems that happen sometimes like messed up data or nothing working at all. The standards for…
An RS485 to Ethernet converter does one thing: it takes data from your serial device and puts it on the network. Simple idea. But the first time you try to set one up, it’s never quite as simple as it looks. Default IP addresses. Serial parameters that have to match exactly. TCP Server vs. TCP…
