Engineer’s Note: When migrating from legacy industry norms, such as the Moxa NPort series, the topology should be well designed. This evaluation is intended for system integrators and automation engineers who are responsible for deploying reliable, low latency SCADA (Modbus/MQTT) systems in modern IT/OT converged environments. Moxa’s NPort 5110 and 5150 have been the default…
Plugging a serial barcode scanner, RFID reader or industrial weighing scale into a modern control network can often cause a frustrating bottleneck. The physical wiring is perfect, the baud rates line up, and yet the SCADA screen is filled with chaotic numbers rather than a clean data value such as 350 kg. The data corruption…
If the physical wiring is proven and communication is functioning but you are getting crazy values on the SCADA screen like 16777215, 65535 or -4.2e-12 then your network is experiencing a data parsing failure. The data corruption is due to the fundamental incompatibility of the modbus data types. The old 16 bit holding registers are…
Selecting the best serial port to ethernet converter for legacy operational technology (OT) 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 converter will guarantee system downtime. There is no…
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