One of the most common critical errors in industrial network upgrades is integrating multiple control systems. A field device ( VFD , power meter , etc . ) will typically talk just fine to a single local HMI , with fast polling and reliable data . However, wiring a second SCADA system from a central…
RS485 Topology Guide The RS485 standard has historically required a strict daisy-chain topology: a single unbroken bus terminated at both ends. But textbook conditions seldom exist in field installations. Technicians often find existing cables pulled in a star configuration when retrofitting video surveillance, building automation (HVAC) or legacy factory floors. That is where RS485 hubs…
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